Simrad TD50 3D Visualisation software

Transcription

1 Simrad TD50 3D Visualisation software Reference Manual Release 1.3.x The purpose of this manual is to provide the descriptions and procedures required to allow for efficient use of the Simrad TD50. The manual also offers a thorough understanding of the various TD50 operational settings and adjustments. The information in this manual is also available in the TD50 On-line help /B November 2017 Kongsberg Maritime AS

2 Document information Product: Simrad TD50 Document: Reference Manual Document part number: Revision: B Date of issue: 30 November 2017 Copyright The information contained in this document remains the sole property of Kongsberg Maritime AS. No part of this document may be copied or reproduced in any form or by any means, and the information contained within it is not to be communicated to a third party, without the prior written consent of Kongsberg Maritime AS. Warning The equipment to which this manual applies must only be used for the purpose for which it was designed. Improper use or maintenance may cause damage to the equipment and/or injury to personnel. You must be familiar with the contents of the appropriate manuals before attempting to operate or work on the equipment. Kongsberg Maritime disclaims any responsibility for damage or injury caused by improper installation, use or maintenance of the equipment. Disclaimer Kongsberg Maritime AS endeavours to ensure that all information in this document is correct and fairly stated, but does not accept liability for any errors or omissions. Support information If you require maintenance or repair, contact your local dealer. You can also contact us using the following address: simrad.support@simrad.com. If you need information about our other products, visit https: // On this website you will also find a list of our dealers and distributors. Kongsberg Maritime AS

3 Reference Manual Table of contents ABOUT THIS MANUAL... 7 SIMRAD TD System description Key features...11 Minimum computer requirements...11 Minimum display requirements Network security Support information OPERATIONAL PROCEDURES Getting started Introduction to the basic procedures Starting the TD50 program Getting to know the user interface Connecting to a source system Disconnecting from a source system Powering off the TD Presenting the data in 3D Using the computer mouse to control the 3D functionality Selecting which beam groups and/or channels to present Initiating vessel tracking and initial camera view Controlling the gain and range settings Adjusting the minimum level (echo sensitivity) Adjusting the maximum level of the received echoes Choosing the start range and range in the echo presentations Setting up the 3D presentation Adjusting the length of the echo trail Adjusting the image quality Enhancing the strongest echoes Increasing the level of detail in the presentation Selecting the cosmetic features Removing the vessel from the TD50 presentation Removing the vessel s wake from the presentation Showing the contours of the active beam group Showing the seabed topography on the TD50 presentation /B 3

4 Simrad TD50 Importing bathymetric files to show the seabed terrain Showing the bottom echo in the presentation Creating a surface grid in the TD50 presentation Limiting noise problems Remove noise and clutter close to the seabed Remove noise and clutter close to the sea surface Reducing noise by removing beams from the presentation Setting a threshold level to remove noise Installing the software Installing the TD50 operational software Upgrading the TD50 operational software Removing the TD50 operational software Setting up the network communication Configuration summary Network addressing in a TD50 system Defining the IP address on the TD50 Processor Unit Ethernet adapter Defining the IP address on the source system Ethernet adapter Setting up the interface between the EK80 and the TD Setting up the interface between the ME70 and the TD Setting up the interface between the MS70 and the TD Allow the TD50 through Windows firewall USER INTERFACE Display organisation D presentation Track Points Top bar Top bar overview Logo and product name Menu button Connections indicator Navigational information Help button description Operating system button descriptions MENU SYSTEM The TD50 menu system Using the smart menu buttons Main menu /B

5 Reference Manual Display menu Visibility menu Clip menu Setup menu FUNCTIONS AND DIALOG BOXES Main menu: Functions and dialog boxes Active Beam Group function Track Vessel function Start Range function Range function Maximum Level function (Sv Max) Minimum Level function (Sv Min) Display menu; Functions and dialog boxes Data History function Resample function Visibility menu; Functions and dialog boxes Show Vessel function Show Track function Show Active Beam Grid function Show Terrain function Terrain Selection dialog box Show Detected Seabed function Ocean Grid Cells function Clip menu: Functions and dialog boxes Clip to Detected Seabed function Clip Offset function Clip to Sea Surface function Minimum Distance to Sea Surface function Maximum Distance to Sea Surface function Outer Beams to Remove function Top Beams to Remove function Clip Settings dialog box Setup menu: Functions and dialog boxes Blend Mode function Blend Factor function Number of Surfaces function Connections dialog box /B 5

6 Simrad TD50 Restore Default Settings dialog box Advanced Settings dialog box About dialog box /B

7 About this manual About this manual The purpose of this manual is to provide the descriptions, procedures and detailed parameter explanations required to allow for safe and efficient use of the Simrad TD50. The manual also provides you with a thorough understanding of the TD50 parameters and adjustments. Target audience This manual is intended for all users of the TD50. Due to the nature of the descriptions and the level of detail provided by this manual, it is well suited for those who are - or wish to be - expert users. A good understanding of system functions and controls is essential to fully take advantage of the functionality provided. Sea conditions vary, sometimes drastically, and it is not possible to identify settings that will provide the best data at all times. Careful study of the information in this manual is highly recommended, preferably while exploring the TD50 functionality. We assume that you are familiar with the basic acoustic principles of sound in water. We also expect that you have some experience with multibeam, split beam and/or single beam echo sounders in scientific applications. Use the Help button! Installed on your TD50 you will find a comprehensive on-line help system. Everything you can read in the TD50 Reference Manual can also be found in the on-line help. To open the on-line help, select Help on the top bar. Online information All end user manuals provided for operation and installation of your Simrad TD50 can be downloaded from our website. Our website also provides information about other Simrad products /B 7

8 Simrad TD50 Reference Manual Operating system The TD50 software has been designed for Windows 10 (64-bit). Windows 7 is also supported. Operating systems older than Windows 7 are not supported. Software version This TD50 Reference Manual complies to software version 1.3.x. Registered trademarks Observe the registered trademarks that apply. Simrad, SIMRAD and the Simrad logo are either registered trademarks, or trademarks of Kongsberg Maritime AS in Norway and other countries. Windows is a registered trademark of Microsoft Corporation in the United States and other countries. We want your feedback We want to make the TD50 as good as possible. We also want our end user documentation to be comprehensive and appropriate. You can help. Please provide comments, suggestions or constructive criticism to any of our support offices /B

9 Simrad TD50 Simrad TD50 Topics System description, page 10 Key features, page 11 Minimum computer requirements, page 11 Minimum display requirements, page 13 Network security, page 13 Support information, page /B 9

10 Simrad TD50 Reference Manual System description The TD50 3D Visualisation software reads data in real time from an echo sounder or a sonar, and provides you with accurate live visualisation of the oceanspace beneath or around the vessel. Previously this data had to be post-processed before the 3D potential of the system was realised. A live feed is now available. Any researchers and vessel crew member benefit from this decision support tool, that enhances vessel efficiency and increases the efficiency of the scientific survey. Accurate 3D visualisation gives you a better understanding of the marine ecosystem by enabling precise measurements of schools of fish rather than estimating size and shapes based on models. Additionally, the 3D view of the bottom topography - and the relating bottom habitats - further enhances the understanding of the marine ecosystems. When accurate 3D visualisation is delivered in real-time, the benefits are significant. The TD50 3D Visualisation software is especially relevant to projects using 'adaptive sampling, as the live 3D stream of the survey area enables you to see specific attributes as the vessel passes over them, allowing action for further inspection to be taken immediately. The live 3D stream from the source systems can be delivered to multiple locations on board. This allows for better interaction between scientists and the vessel operators. This is typically important in demanding operations where the vessel interacts with objects in the water column. Research vessels engaged in active sampling of biology such as trawling can also improve their capabilities, with the TD50 3D Visualisation software effectively providing a 'long range camera' below the surface /B

11 Simrad TD50 Related topics Key features, page 11 Key features The Simrad TD50 3D Visualisation software is an accurate and advanced 3D software package. The functionality is simple to navigate, and the 3D display gives you a field of view unlike any previous echo sounder or sonar systems. Any researchers and vessel crew member benefit from this decision support tool, that enhances vessel efficiency and increases the efficiency of the scientific survey. Highly effective decision support tool Highly accurate measurements throughout the water column. Live streaming in real time. Playback mode. Precise measurement of schools of fish. 3D view of bottom topography and the relating bottom habitats Relevant to projects using adaptive sampling for biology, for example trawling. The live 3D stream can be delivered to multiple locations on board. Currently available for live streaming with data from the following source systems: Simrad EK80 Simrad ME70 Simrad MS70 Related topics System description, page 10 Minimum computer requirements Unless specifically ordered from Kongsberg Maritime, the TD50 is not provided with a computer. This item must be purchased locally. If you purchase a computer locally, make sure that the chosen model meets the functional and technical requirements. It is important to make sure that the chosen computer model is relatively new with sufficient processing power, a high performance graphic adapter, and a high speed network adapter /B 11

12 Simrad TD50 Reference Manual Note The computer design and construction must allow for maritime use, easy access to connectors, parts and cables, and a safe installation. A laptop computer may be used as long as it meets the functional and technical requirements. The minimum technical requirements are: Processor: Intel I7 (or better) An equivalent type from another manufacturer can also be used. Memory: minimum capacity 16 GB Hard disk: 1 TB Graphic adapter Minimum: NVIDIA GTX 1060 An equivalent type from another manufacturer can also be used. Recommended: NVIDIA GTX 1080 A large number of commercial graphic adapters are available, and we have not tested all of them. Even adapters that meet the minimum specifications may fail with the TD50 software. We welcome any feedback with comments or experiences with graphic adapters. Ethernet adapter Minimum bandwidth: 1 Gb/s Serial interfaces: Not applicable Operating system Tip The TD50 software has been designed for Windows 10 (64-bit). Windows 7 is also supported. Operating systems older than Windows 7 are not supported. Kongsberg Maritime may provide a suitable computer. It is set up with all necessary software. The computer is based on a commercial design, but the software and hardware has been specified by Kongsberg Maritime to suit the TD50 requirements /B

13 Simrad TD50 Minimum display requirements Unless specifically ordered, the TD50 is not provided with a display. The display must then be purchased locally. You can use one or two displays on your TD50 Processor Unit depending on personal and/or operational preferences. Note Make sure that the chosen display meets the TD50 requirements. The design and construction must allow for marine use, and the display must be able to withstand the movements and vibrations normally experienced on a vessel. Verify that you have easy access to cables and connectors, and that the display can be installed in a safe and secure way. The minimum technical requirements for the display are: Resolution: Minimum: 1280 x 1024 pixels Recommended: 1920 x 1200 pixels (or better) Video interface: The video interface must match the output format(s) provided by the Processor Unit. The Processor Unit may offer video output on several formats. Investigate your options before you purchase a display. Physical screen size: The screen size depends on personal and/or operational preferences. The TD50 software supports 9:16 displays. Network security If a TD50 system is connected to a local area network, data security is important. Equipment manufactured by Kongsberg Maritime are frequently connected to the vessel's local area network (LAN). When you connect a computer to a local area network you will always expose the data on that computer. All other computers connected to the same network may be able to access your data. Several threats may immediately occur: Remote computers can read the data. Remote computers can change the data. Remote computers can change the behaviour of the computer, for example by installing unwanted software /B 13

14 Simrad TD50 Reference Manual Usually, two parameters are used to define the threat level: 1 The likelihood that any remote connection will do any of the above. 2 The damage done if a remote connection succeeds doing this. Kongsberg Maritime has no information regarding the complete system installation on any vessel. Systems provided by Kongsberg Maritime are regarded as stand-alone offline systems. They are stand-alone even though they may be connected to a network for sensor interfaces and/or data distribution. Note No network safety applications are installed on any Kongsberg Maritime computers. The computers are thus not protected against viruses, malware or unintentional access from external users. Securing the TD50 system itself has no meaning unless there is a policy in place that secures all computers in the network. This policy must include physical access by trained and trusted users. The customer/end user of the TD50 system will always be in charge of defining and implementing a security policy, and providing the relevant network security applications. Note Kongsberg Maritime will not accept any responsibility for errors and/or damages caused by unauthorized use or access to the TD50. Support information If you need technical support for your Simrad TD50 you must contact your local dealer, or one of our support departments. A list of all our offices and dealers is provided on our website. You can also contact our main support office in Norway. Norway (Main office) Company name: Kongsberg Maritime AS / Simrad Address: Strandpromenaden 50, 3190 Horten, Norway Telephone: Telefax: Website: address: simrad.support@simrad.com /B

15 Simrad TD50 Spain Company name: Simrad Spain S.L.U Address: Partida Atalayes 20, Villajoyosa, Spain Telephone: Telefax: Website: address: France Company name: Simrad France Address: 5 rue de Men Meur, Guilvinec, France Telephone: Telefax: Website: address: simrad.france@simrad.com USA Company name: Kongsberg Underwater Technology Inc / Simrad Fisheries Address: rd Ave W, Lynnwood, WA 98036, USA Telephone: Telefax: Website: address: fish.usa.support@simrad.com Malaysia Company name: Kongsberg Maritime Malaysia Sdn. Bhd Address: Unit 27-5 Signature Offices, The Boulevard, Mid Valley City, Lingkaran Syed Putra, Kuala Lumpur, Malaysia Telephone: Telefax: Website: address: simrad.asia@simrad.com /B 15

16 Simrad TD50 Reference Manual Korea Company name: Kongsberg Maritime Korea Ltd Address: #1101-Harbor Tower, 113-1, Nampodong 6-Ga, Jung-Gu, Busan Korea Telephone: Telefax: Website: address: China Company name: Kongsberg Maritime China Ltd Address: 555 Chuanqiao Road, China (Shanghai) Pilot Free Trade Zone, , China Telephone: Telefax: Website: address: /B

17 Operational procedures Operational procedures Topics Getting started, page 18 Presenting the data in 3D, page 23 Controlling the gain and range settings, page 27 Setting up the 3D presentation, page 32 Selecting the cosmetic features, page 37 Limiting noise problems, page 43 Installing the software, page 48 Setting up the network communication, page /B 17

18 Simrad TD50 Reference Manual Getting started Topics Introduction to the basic procedures, page 18 Starting the TD50 program, page 18 Getting to know the user interface, page 19 Connecting to a source system, page 21 Disconnecting from a source system, page 22 Powering off the TD50, page 22 Introduction to the basic procedures Once you have started the TD50 program, you are ready to start the actual operation. Provided that one or more source systems are connected, the TD50 will receive information from each "ping", and present the echo data in 3D. Observe these brief procedures to familiarize yourself with the basic operation. The procedures are partly provided to get you acquainted with the basic functionality offered by the TD50, and partly to set up the TD50 for normal use. The TD50 starts up using the same settings as the last time you used it. If these settings are acceptable, continue operation. Note The TD50 3D Visualisation software allows you to fetch information from external source systems that are collecting real-time echo data. You can also fetch echo data that are replayed on the same source systems. Starting the TD50 program The TD50 is a software program, and you start it just like any other computer programs. Context The TD50 program is not automatically started when the Processor Unit is turned on. Once the operating system has started, select the TD50 program icon on the desktop /B

19 Operational procedures Procedure 1 Turn on the display. If required, refer to the instructions provided by the display manufacturer. 2 Turn on the Processor Unit. Wait for the operating system to start up. 3 On the Processor Unit desktop, double-click the TD50 icon to start the program. 4 Once the TD50 program has started, observe that the presentation opens. When the TD50 program starts, the Connections dialog box is automatically opened. The Connections dialog box lists all the source systems (sonars and/or echo sounders) available on the network. You can choose which source system you wish to connect to, or disconnect from. If no systems are listed, you can initiate a search. If the Connections dialog box does not open, double-click Connections on the top bar. 5 In the Connections dialog box, select a source system, and then select Connect. Tip The Connections dialog box allows you to connect the TD50 to multiple source systems. 6 Use the Active Beam Group function to select which beam group(s) to present in 3D, and which active beam group to control the operational settings for. In this context, the phrase beam group is used to describe the data set provided by any source system. The data set contains echo information that is collected by one single "ping", and processed and presented together. Getting to know the user interface The TD50 consists of specific visual elements that work together. The visual elements provide you with the echo information you need, they help you to control the functionality needed to understand this information, and finally, they allow you to control the operational parameters. Context This TD50 screen capture shows you a typical operational situation. The top bar shows you navigational information, and offers buttons for key functions. The menu system on the left side gives you easy access to all the functionality offered by the TD /B 19

20 Simrad TD50 Reference Manual A Top bar B Main menu C Secondary menus D 3D presentation Procedure 1 Move the cursor to the top bar, and investigate the functions provided. Observe that small tooltips open to identify the various functions you can use. The TD50 top bar is located on the top of the display presentation, and stretches from the far left to the far right side. The top bar gives you fast access to key functionality and navigational information. 2 Move the cursor to the menu system on the right side of the TD50 presentation. The Main menu is located at the top of the menu structure. It offers the most common functions for efficient use of the TD50. Below the Main menu, a set of dedicated tabs are used to open the secondary menus /B

21 Operational procedures 3 Move the cursor to the 3D view in the TD50 presentation. The 3D presentation takes up the largest part of the TD50 presentation. When you start the TD50 3D Visualisation software, the 3D view displays the vessel in the centre, and in Track Position mode. 3D presentation, page 65 Track Points, page 67 Connecting to a source system When the TD50 program starts, the Connections dialog box is automatically opened. The Connections dialog box lists all the source systems (sonars and/or echo sounders) available on the network. You can add additional source systems to the TD50 presentations after the program has started. Context The TD50 3D Visualisation software reads data in real time from an echo sounder or a sonar, and provides you with accurate live visualisation of the oceanspace beneath or around the vessel. You can connect to multiple source systems simultaneously. You can then choose to present the 3D echo data from either a single source, or from several sources at the same time. Use the Active Beam Group function to select which beam group(s) to present in 3D, and which active beam group to control the operational settings for. Procedure 1 Double-click Connections on the top bar to open the Connections dialog box. All source systems on the network are automatically listed. In this context, the phrase source system is used to identify the external application (product, program or device) that transmits information to the TD50. Connections dialog box, page If the requested source system is not listed, select Search. 3 In the Connections dialog box, select a source system, and then select Connect. A successful connection is confirmed by a small dialog box that shows the connection progress. 4 Select Close to close the dialog box. 5 Select Active Beam Group to choose from which source system to present echo data in 3D, and to define which beam group to be the active. The Active Beam Group function is located on the Main menu /B 21

22 Simrad TD50 Reference Manual Disconnecting from a source system The TD50 3D Visualisation software reads data in real time from an echo sounder or a sonar, and provides you with accurate live visualisation of the oceanspace beneath or around the vessel. If a source system is turned off, or for other reasons not available, you can disconnect from it. Context You can connect to multiple source systems simultaneously. You can then choose to present the 3D echo data from either a single source, or from several sources at the same time. Procedure 1 Double-click Connections on the top bar to open the Connections dialog box. All source systems on the network are automatically listed. In this context, the phrase source system is used to identify the external application (product, program or device) that transmits information to the TD50. Connections dialog box, page In the Connections dialog box, select the source system you wish to disconnect from, and then select Disconnect. 3 Select Close to save the chosen settings and close the dialog box. Powering off the TD50 You must never turn off the TD50 by means of the on/off switch on the Processor Unit. You must always exit the TD50 program by selecting Exit on the top bar. Context When you do not use the TD50, switch off the display and the Processor Unit. Procedure 1 Select Exit on the top bar. Observe that the TD50 program closes down. 2 Turn off the Processor Unit. 3 Turn off the display. If required, refer to the instructions provided by the display manufacturer /B

23 Operational procedures Presenting the data in 3D Topics Using the computer mouse to control the 3D functionality, page 23 Selecting which beam groups and/or channels to present, page 24 Initiating vessel tracking and initial camera view, page 25 Using the computer mouse to control the 3D functionality You can use the computer mouse to control the functionality provided by the TD50. The mouse controls the movements of the cursor, and the mouse buttons and scroll wheel are used to control the 3D presentation. Prerequisites We assume that you have a computer mouse with two control buttons and a scroll wheel. The 3D presentation provided by the TD50 is based on a virtual 'camera control'. Imagine that you have a camera in your hands, and that you can move the location of the camera to obtain different perspectives of the objects in the 3D presentation. This allows you to see the objects from different angles. 3D presentation, page 65 Track Points, page 67 Procedure 1 Spin the scroll wheel on the mouse to zoom in and out. 2 Press and hold the scroll wheel on the mouse, then move the mouse to pan left-right or up-down. 3 Press and hold the left mouse button, then move the mouse to change the camera angle. 4 Press and hold the right mouse button, then move the mouse to zoom in and out /B 23

24 Simrad TD50 Reference Manual Selecting which beam groups and/or channels to present The different source systems that provide data to the TD50 offer these as different data sets. When you start the TD50 operation - and during use - you can select which data set to present. You can choose to present one single data set, or several data sets simultaneously. Context The phrase beam group is used to describe the data set provided by any source system. From single beam echo sounders, each beam group contains the information collected by a specific channel. In this context, the phrase channel is used as a common term to identify the combination of transceiver, transducer and operating frequency. From multibeam echo sounders and sonars, each beam group contains information collected in a swath, reference beam or grid. Procedure 1 Observe the Main menu. 2 Select Active Beam Group to choose from which source system to present echo data in 3D, and to define which beam group to be the active. Active Beam Group function, page 87 In this context, the phrase beam group is used to describe the data set provided by any source system. The data set contains echo information that is collected by one single "ping", and processed and presented together. 3 Select a group name to enable that specific data set to be the active beam group. The data set is automatically made visible, and the icon changes its appearance to reflect your choice. Even if you present data from several different beam groups, only one of these can be active. The active beam group is identified in the list, and with its name in the Active Beam Group button. Several parameters in the TD50 will by default only be applied to the active beam group. However, when the Apply to all option appears, you can choose to make your changes apply to all the beam groups simultaneously. 4 If you do not wish to see the echo data from the active beam group, select the icon on the left side of the group name to disable it. Your choice is reflected by the appearance of the icon. Note The active beam group is not visible in the 3D presentation. As a reminder, a larger icon is placed on the left side of the menu button /B

25 Operational procedures 5 Select an icon to allow the echo information from that group to be presented in 3D. Your choice is reflected by the appearance of the icon. 6 Select the icon one more time to hide the echo information. Initiating vessel tracking and initial camera view Once the 3D presentation has been established, you can use the Track Vessel function to select a predefined "camera" position, and track the vessel movements. Context The TD50 supports several tracking modes. In each mode, the camera is placed in a specific location related to the vessel. When the vessel moves, the movements are tracked related to its position, rotation or heading. With Track Vessel disabled, the vessel will soon disappear from view due to its speed and course. Tip In some modes only the zoom functionality is provided. You can not rotate or pan the vessel. If your mouse control does not work as expected, always check the Track Vessel setting. Procedure 1 Observe the Main menu. 2 Select Track Vessel to see the available options. Track Vessel function, page 89 3 Select tracking mode to suit your preferences. Off When Track Vessel is switched off, the camera control is disabled. The vessel will continue on its track across the screen, but it will not be locked to the centre of the presentation. Track Position In Track Position mode, the camera control is enabled, it will always point in the same direction, and follow any changes in the vessel s position. You can change the camera angle, but it will be locked to the vessel s position. So if you make the camera face due north, it will remain in that position even if the vessel changes its course /B 25

26 Simrad TD50 Reference Manual Track Rotation In Track Rotation mode, the camera control is enabled, it is fixed to the vessel rotation, and will follow any changes in the vessel s position and/or rotation. The vessel s position and your camera angle may change, but the camera is still locked to the vessel s heading. This means that even if the vessel changes its course, the camera angle will remain in the same position relative to the new heading. If you set the camera to point at the starboard side of the vessel, it will remain in that position. Towards Stern In Towards Stern mode, the camera control is enabled, and oriented towards the vessel s stern. The vessel is locked in the centre of the presentation, and its track is displayed relative to position and heading. In this mode only the zoom functionality is provided. You can not rotate or pan the vessel. Three-Quarter View In Three-Quarter View mode, the camera control is enabled, and oriented with a fixed 210 degrees angle. In this mode only the zoom functionality is provided. You can not rotate or pan the vessel. 4 Move the cursor to the 3D view in the TD50 presentation. 5 Use the mouse to control the 3D presentation. a b c d Spin the scroll wheel on the mouse to zoom in and out. Press and hold the scroll wheel on the mouse, then move the mouse to pan left-right or up-down. Press and hold the left mouse button, then move the mouse to change the camera angle. Press and hold the right mouse button, then move the mouse to zoom in and out /B

27 Operational procedures Controlling the gain and range settings Topics Adjusting the minimum level (echo sensitivity), page 27 Adjusting the maximum level of the received echoes, page 28 Choosing the start range and range in the echo presentations, page 30 Adjusting the minimum level (echo sensitivity) In the TD50 you do not change the actual gain, but the minimum level of the received echo. When the numerical db level is decreased, the weaker echoes will start to appear in the presentation. This does not happen because the signal amplification is increased, but because the "visual sensitivity" has been improved. Context The volume backscatter (Sv) (echo strength) from the targets in the beam change depending on the target properties. This functionality allows you to identify the nature of the schools, and discriminate between them. The echo strength (A) changes with time. The Minimum Level (B) is adjusted up or down. Reducing the Minimum Level setting will increase the sensitivity. Only echoes over the Minimum Level will be shown (C). Note While the Minimum Level function controls the visibility of the weakest echoes, the Maximum Level function controls the visibility of the strongest echoes. Used together, these functions allow you to apply a "filter" effect to remove unwanted echoes /B 27

28 Simrad TD50 Reference Manual Procedure 1 Observe the Main menu. 2 Observe the Minimum Level button. Minimum Level function (Sv Min), page 96 3 Adjust the setting to fit your requirements. The following methods can be used for this adjustment. Method 1: Click [+] or [-] to choose the level. Method 2: Click the middle of the button, hold the mouse button depressed. Drag the cursor sideways to increase or decrease the level. Method 3: Click the middle of the button to open the menu. Type the requested value. Tip You can only do this if you have computer keyboard connected to your Processor Unit. If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Adjusting the maximum level of the received echoes While most echoes are weak, some - for example the bottom echo, large schools or noise - may be strong. These strong echoes can be removed from the presentation by adjusting the maximum level. When the numerical db level is increased, the stronger echoes will start to disappear from the presentation. Context The volume backscatter (Sv) (echo strength) from the targets in the beam change depending on the target properties. This functionality allows you to identify the nature of the schools, and discriminate between them. Note While the Minimum Level function controls the visibility of the weakest echoes, the Maximum Level function controls the visibility of the strongest echoes. Used together, these functions allow you to apply a "filter" effect to remove unwanted echoes /B

29 Operational procedures The echo strength (A) changes with time. The Minimum Level (B) is adjusted up or down. Reducing the Minimum Level setting will increase the sensitivity. The Maximum Level (C) is also adjusted up or down. Increasing the Maximum Level setting will increase the sensitivity and allow stronger echoes to be visible. Only echoes over the Minimum Level and under the Maximum Level will be shown (D). Procedure 1 Observe the Main menu. 2 Observe the Maximum Level button. Maximum Level function (Sv Max), page 94 3 Adjust the setting to fit your requirements. The following methods can be used for this adjustment. Method 1: Click [+] or [-] to choose the level. Method 2: Click the middle of the button, hold the mouse button depressed. Drag the cursor sideways to increase or decrease the level. Method 3: Click the middle of the button to open the menu. Type the requested value. Tip You can only do this if you have computer keyboard connected to your Processor Unit. If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group /B 29

30 Simrad TD50 Reference Manual Choosing the start range and range in the echo presentations The start point of the presentation is defined by the Start Range value. This is the "upper limit" of the presentation. The distance from this start point and out to the end of the presentation is defined by the Range value. Context For echo sounder information (echograms), the Range setting defines the vertical range from the start depth and down. In other words, this is the vertical distance between the "top" and the "bottom" of the echogram. The Range setting specifies the "bottom" depth, while the Start Range setting specifies the "top" depth. For sonar information, the Range setting defines how "far" you wish the TD50 to detect echoes. In other words, you specify the horizontal distance from the vessel to the outer edge of the search area. Procedure 1 Observe the Main menu. 2 Locate the Start Range function. Start Range function, page 91 3 Click the middle of the button to open the menu. Type the requested value. This setting is by default applied to all beam groups from the active source system. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. 4 Locate the Range function. Range function, page 92 5 Click the middle of the button to open the menu. Type the requested value. This setting is by default applied to all beam groups from the active source system. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. 6 If you wish to apply the new setting to all current beam groups, select Apply to all. Example In an echogram, set the Start Range value to 20 meters. This will make the presentation start from 20 meters below the sea surface (provided that the transducer offset has been defined) /B

31 Operational procedures Set Range to 40 meters. The presentation will now show the echoes detected between 20 and 60 meters from the transducer. Provided that the depth is larger than 60 meters, the bottom contour is not shown. Any echoes closer than 20 meters from the transducer will not be detected. In the sonar presentation, set the Start Range value to 50 meters. This will set the starting point of the presentation to 50 meters from the transducer. Set Range to 250 meters. The presentation will now show the echoes detected from 50 to 300 meters. Any echoes closer than 50 meters from the transducer will not be detected /B 31

32 Simrad TD50 Reference Manual Setting up the 3D presentation Topics Adjusting the length of the echo trail, page 32 Adjusting the image quality, page 33 Enhancing the strongest echoes, page 34 Increasing the level of detail in the presentation, page 36 Adjusting the length of the echo trail When the vessel moves in the TD50 presentation, it leaves behind an "echo trail". You can adjust this length. Context The Data History function controls how much of the historical data should be displayed. The amount is given in percent of the historical data buffer. The Data History function depends on the amount of random access memory (RAM) in the Processor Unit. The TD50 software allocates a specific memory resource for this use. If you add additional source systems to the TD50, the memory must be shared between these systems. The amount of data history will thus be reduced when multiple source systems are connected. Note The Data History function is not implemented for Simrad MS70. Procedure 1 Open the Display menu. 2 Observe the Data History function. Data History function, page /B

33 Operational procedures 3 To change the setting, move the cursor to either side of the button. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. Select the middle of the button to open a small menu with the available options. By default, the setting only applies to the currently active beam group. 4 You can also select the middle of the button to open a small menu with the available options. a b c Select the required setting. If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Adjusting the image quality The image quality - or volume of detail in the presentation - may be adjusted. Context The Resample function allows you to control the quality of the image. A higher sampling rate offers better detail, and thus increased image quality. The button menu offers several quality options ranging from coarse to very detailed. Note As the detail is increased, the size of each sample point on screen shrinks, but the performance cost increases. A high sampling rate requires more resources from the Processor Unit, especially from the graphic adapter. Procedure 1 Open the Display menu. 2 Observe the Resample function. Resample function, page 99 3 To change the setting, move the cursor to either side of the button. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. Select the middle of the button to open a small menu with the available options. By default, the setting only applies to the currently active beam group /B 33

34 Simrad TD50 Reference Manual 4 You can also select the middle of the button to open a small menu with the available options. a b c Select the required setting. If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Enhancing the strongest echoes The TD50 uses coloured isosurfaces to present the echo data in three dimensions. Seven colours are used. Grey represents the weakest echoes, while red are used to show the strongest echoes. Between these, blue, green, yellow, and pink are used to present increasing echo strength. Since the isosurfaces will overlap, information may be hidden. For this reason the isosurfaces are transparent, and the Blend Mode function allows you to control the transparency. The function is useful when you wish to locate the strongest echoes. Context The Blend Mode function allows you to change the data visualization of the TD50 presentation. In short, the Maximum intensity mode offers priority to strong echoes, while Normal mode will have a more "realistic" effect. When you set Blend Mode to Normal, you can adjust the Blend Factor /B

35 Operational procedures In this example, Blend Mode is set to Normal with Blend Factor 25 (left), Hybrid (middle), and Maximum intensity (right). Observe how the strong echoes are easier to see in Maximum intensity mode. Procedure 1 Open the Setup menu. 2 Observe the Blend Mode function. Blend Mode function, page Choose the required setting. In Normal mode, each isosurface represents volume with an associated colour. The colouring depicts the echo intensities. Each isosurface with its volume adds to the contour and realism of the echo data. When you set Blend Mode to Normal, you can adjust the Blend Factor. The Blend Factor function controls the transparency. You can set the "transparency scale" from 1 which is nearly transparent, to 50 which is not transparent at all. Blend Factor function, page 119 When set to Hybrid mode, you will apply a mixture of Normal and Maximum Intensity modes. The isosurfaces with the strongest echo levels will always be shown. Isosurfaces with weaker echoes will be blended together. In Maximum intensity mode, the coloured isosurfaces are not blended together. The isosurfaces with the strongest echoes will always be displayed, even though they may be hidden behind other surfaces with weaker echoes. The advantage with the /B 35

36 Simrad TD50 Reference Manual Maximum intensity mode is the improved visibility at greater distances, since the strongest signals are not hidden. The disadvantage is that the contours are not as well defined as in Normal mode, since the weaker signals are removed to show the stronger echoes behind them. Increasing the level of detail in the presentation The 3D presentation provided by TD50 is created using isosurfaces. Each isosurface is like a "sheet of paper", where the data has identical values. By increasing the number of surfaces, the image detail will be improved. Context In order to use isosurfaces, you must select which data to use. For the TD50, these data are the echo data provided by the source systems. The echoes from each MS70 transmission ("ping") are defined in three dimensions. From echo sounders, the data are defined in two dimensions, but since they are presented over time, this adds the third dimension. The isosurfaces are then defined using the minimum and maximum echo levels combined with the requested number of surface. If you use only one isosurface, it will present the Minimum Level (SV Min) value. Example Set Minimum Level to -60 db, and Maximum Level to -40 db. This leaves a 20 db "visual space". If you set Number of Surfaces to three, the TD50 will create isosurfaces for -60 db, -50 db and -40 db. The TD50 will process the echo data, and calculate where the surfaces shall be drawn. An increasing number of isosurfaces requires more resources from the Processor Unit, especially from the graphic adapter. Procedure 1 Open the Setup menu. 2 Observe the Number of Surfaces function. Number of Surfaces function, page Select the required value /B

37 Operational procedures Selecting the cosmetic features Topics Removing the vessel from the TD50 presentation, page 37 Removing the vessel s wake from the presentation, page 38 Showing the contours of the active beam group, page 38 Showing the seabed topography on the TD50 presentation, page 39 Importing bathymetric files to show the seabed terrain, page 40 Showing the bottom echo in the presentation, page 41 Creating a surface grid in the TD50 presentation, page 42 Removing the vessel from the TD50 presentation The vessel symbol may in some cases dominate the TD50 presentation. You may therefore choose to hide or show the vessel. Context The Show Vessel function enables or disables the vessel model from the TD50 presentation. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Procedure 1 Select the Visibility tab to open the menu. 2 Observe the Show Vessel function. Show Vessel function, page To change the setting, move the cursor to either side of the button, and select On or Off. a Select Off to remove the vessel from the presentation. b Select On to place the vessel in the presentation /B 37

38 Simrad TD50 Reference Manual Removing the vessel s wake from the presentation When you sail across the TD50 presentation, your vessel leaves its "wake" behind. This is a visible track or footprint on the virtual surface that shows you the vessel s previous positions. You may choose to hide this information. Context By means of the Show Track function, you can enable or disable the vessel track in the TD50 presentation. This is an "on/off" switch. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Procedure 1 Select the Visibility tab to open the menu. 2 Observe the Show Track function. Show Track function, page To change the setting, move the cursor to either side of the button, and select On or Off. a Select Off to remove the vessel s historical track from the presentation. b Select On to see the vessel s historical track in the presentation. Showing the contours of the active beam group Even if you present data from several different beam groups, only one of these can be active. Several parameters in the TD50 will by default only be applied to the active beam group. To identify the active beam group in the TD50 presentation, you can choose to see the contours of the beam group. Context When enabled, the Show Active Beam Grid function presents the contour of the beam from the currently active beam group. This is an "on/off" switch. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Procedure 1 Select the Visibility tab to open the menu /B

39 Operational procedures 2 Observe the Show Active Beam Grid function. Show Active Beam Grid function, page To change the setting, move the cursor to either side of the button, and select On or Off. a Select On to place the active beam group contours in the presentation. b Select Off to remove the active beam group contours from the presentation. Showing the seabed topography on the TD50 presentation For a realistic presentation of the seabed, you can import bathymetric data. The information provided by the bathymetric data files can be placed into the TD50 presentation to improve its appearance. Prerequisites In order to see the seabed terrain in the presentation, the relevant bathymetric TIFF files with the bottom images must be imported into the TD50. Context The Show Terrain function is used to enable or disable a terrain model in the TD50 presentation. This is an "on/off" switch. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. The Terrain Selection dialog box is used to select which bathymetric data sources to use in the TD50 presentation. You can define which projection to use, and provide a vertical offset to compensate for different vertical datums. To open the Terrain Selection dialog box, select the middle of the Show Terrain button, and select Terrain Selection. Importing bathymetric files to show the seabed terrain, page 40 Terrain Selection dialog box, page 104 Procedure 1 Select the Visibility tab to open the menu. 2 Observe the Show Terrain function. Show Terrain function, page /B 39

40 Simrad TD50 Reference Manual 3 To change the setting, move the cursor to either side of the button, and select On or Off. a Select On to place the terrain model in the presentation. b Select Off to remove the terrain model from the presentation. Importing bathymetric files to show the seabed terrain For a realistic presentation of the seabed, you can import bathymetric data. In order to see the seabed terrain in the presentation, the relevant bathymetric TIFF files with the bottom images must be imported into the TD50. Prerequisites In order to see the seabed terrain in the presentation, the relevant bathymetric TIFF files with the bottom images must be available. Context The Terrain Selection dialog box is used to select which bathymetric data sources to use in the TD50 presentation. You can define which projection to use, and provide a vertical offset to compensate for different vertical datums. Procedure 1 Select the Visibility tab to open the menu. 2 Observe the Show Terrain function. Show Terrain function, page To open the Terrain Selection dialog box, select the middle of the Show Terrain button, and select Terrain Selection. 4 Under Files, use Add or Remove to handle the bathymetric terrain files. 5 If necessary, modify the Projection settings. a b Select Override automatic projection. If the UTM zone provided by the bathymetric TIFF files does not match the UTM zone established by the TD50 during the position conversion, you must manually override the automatic projection. This allows you to insert the correct UTM zone on the northern or southern hemisphere. Provide the correct UTM Zone. When Override automatic projection has been enabled, you must provide the UTM Zone /B

41 Operational procedures c Select or deselect Northern Hemisphere. When Override automatic projection has been enabled, you must specify if you are located on the northern or southern hemisphere. Activating this option changes how the coordinates from the TIFF file are interpreted. Showing the bottom echo in the presentation When data from an echo sounder is presented by the TD50, the bottom echo may be included. This echo may be removed by disabling its presentation. Prerequisites The Show Detected Seabed function only applies to echo sounder data. Context The Show Detected Seabed function enables or disables the bottom echo from the TD50 presentation. This is an "on/off" switch. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Procedure 1 Select the Visibility tab to open the menu. 2 Observe the Show Detected Seabed function Show Detected Seabed function, page To change the setting, move the cursor to either side of the button, and select On or Off. a b Select On to place the bottom echo in the presentation. Select Off to remove the bottom echo from the presentation. 4 Select the middle of the button to open it. a b If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group /B 41

42 Simrad TD50 Reference Manual Creating a surface grid in the TD50 presentation The TD50 presentation does not offer any information about the distance your vessel is "sailing" across the screen. In order to offer some sense of distance, you can enable a grid that covers the virtual surface, and set the grid size to reflect distance. Context The grid provided by the Ocean Grid Cells function is only offered to give you a sense of distance. Select the middle of the button to open a small menu with the available options. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Procedure 1 Select the Visibility tab to open the menu. 2 Observe the Ocean Grid Cells function. Ocean Grid Cells function, page Select the middle of the button to open it. 4 Select requested grid size, or select Off to disable the grid /B

43 Operational procedures Limiting noise problems Topics Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Reducing noise by removing beams from the presentation, page 45 Setting a threshold level to remove noise, page 46 Remove noise and clutter close to the seabed The operational performance of all hydroacoustic systems depend on the noise conditions. Several factors are contributing to noise, and these limit the performance of the hydroacoustic equipment used on board the vessel. The Clip to Detected Seabed function allows you to remove echo data from the TD50 presentation. The function makes it possible to remove noise and clutter close to the seabed. Procedure 1 Open the Clip menu. 2 Observe the Clip to Detected Seabed function. This is an "on/off" switch. Clip to Detected Seabed function, page Set the function to On. When the function is enabled, the Clip Offset function allows you to control where to start the data removal. The starting point is relative to the detected seabed. 4 Observe the Clip Offset function. Clip Offset function, page /B 43

44 Simrad TD50 Reference Manual 5 Choose the required setting. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. Select the middle of the button to open it. If you have a keyboard connected to the TD50, you can type the requested value into the text box. You can also click the middle of the button, hold the mouse button depressed, and then move the mouse - and cursor - sideways. Remove noise and clutter close to the sea surface The operational performance of all hydroacoustic systems depend on the noise conditions. Several factors are contributing to noise, and these limit the performance of the hydroacoustic equipment used on board the vessel. The Clip to Sea Surface function allows you to remove noise and clutter close to the surface. Context This function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. Procedure 1 Open the Clip menu. 2 Observe the Clip to Sea Surface function. This is an "on/off" switch. Clip to Sea Surface function, page Set the function to On. Once Clip to Sea Surface is enabled, you must use the Minimum Distance to Sea Surface and Maximum Distance to Sea Surface functions to define the limits. 4 Observe the Minimum Distance to Sea Surface and Maximum Distance to Sea Surface functions. Minimum Distance to Sea Surface function, page 112 Maximum Distance to Sea Surface function, page /B

45 Operational procedures 5 Choose the required settings. The Min Dist to Sea Surface function allows you to remove the echo data close to the surface. It will remove all information from the sea surface and down to the specified depth The Max Dist to Sea Surface function allows you to remove any echo data from below a given depth. Information between the specified depth and the surface will be shown. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. Select the middle of the button to open it. If you have a keyboard connected to the TD50, you can type the requested value into the text box. You can also click the middle of the button, hold the mouse button depressed, and then move the mouse - and cursor - sideways. 6 If necessary, adjust the data filter in the Clip Settings dialog box. All hydroacoustic systems are vulnerable for acoustic noise, and due to the sensitivity of the MS70 it may show you noise at the outer end of the beams. The data filter in the Clip Settings dialog box allows you to define a limit to remove this noise. Clip Settings dialog box, page 115 Reducing noise by removing beams from the presentation The operational performance of all hydroacoustic systems depend on the noise conditions. Acoustic noise may often appear in the outer boundaries of the swath or grid. A simple method for reducing this noise is to simple disable the presentation of these beams. Context Each source system provides the echo data in beams. The number of beams from each system depends on the system properties. As an example, the Simrad ME70 uses up to 45 beams, while a split beam echo sounder has three or four. The Simrad MS70 operates with a total of 500 beams to create the grid. The Outer Beams to Remove function is only valid for source systems that provide echo data as a swath or in a grid. These are currently the Simrad ME70 and MS70 Multibeam scientific systems. The Top Beams to Remove function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. Procedure 1 Open the Clip menu /B 45

46 Simrad TD50 Reference Manual 2 Observe the Outer Beams to Remove function Outer Beams to Remove function, page Choose the required setting. The Outer Beams to Remove function allows you to remove any number of beams from the boundaries of the TD50 presentation. Note that the beams are removed in pairs from both sides of the swath. This function may be useful you experience a lot of noise in the outer regions of the swath. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. 4 Observe the Top Beams to Remove function Top Beams to Remove function, page Choose the required setting. The Top Beams to Remove function is used to remove any number of upper beams from the TD50 presentation. This function can be useful if the upper beams in the grid are extorted by noise Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. Setting a threshold level to remove noise All hydroacoustic systems are vulnerable for acoustic noise, and due to the sensitivity of the MS70 it may show you noise at the outer end of the beams. The data filter in the Clip Settings dialog box allows you to define a limit to remove this noise. Context Example Image that you have three measurements along the beam; -60, -50 and -20 db. If you have set Minimum Value (Sv Min) to -60 db, Maximum Value (Sv Max) to -40 db and Number of Surfaces to 3, the TD50 will draw isosurfaces at -60, -50 and -40 db. However, the -20 db is acoustic noise. By means of the data filter you can set a threshold to remove this noise. If you set the filter value to -30 db isosurface -40 db is removed, while the -50 db surface is kept /B

47 Operational procedures This function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. Procedure 1 Open the Clip menu. 2 Select Clip Settings to open the dialog box. Clip Settings dialog box, page Choose the required setting. 4 Select OK to save the chosen setting and close the dialog box /B 47

48 Simrad TD50 Reference Manual Installing the software Topics Installing the TD50 operational software, page 48 Upgrading the TD50 operational software, page 49 Removing the TD50 operational software, page 50 Installing the TD50 operational software If your TD50 3D Visualisation software is provided with a Processor Unit, the TD50 software has already been installed. If you intend to use your own computer, you must install the software yourself. Prerequisites In order to install the software, you need the relevant file set on a suitable media. If the software is provided on a CD or a DVD, and your computer is not fitted with a suitable drive, copy the files to a USB flash drive. Note Verify that you have administrative rights on the Processor Unit. You need this to install the software. If you purchased your own computer, you must verify that it meets the technical requirements for use with the TD50. Do this before you install the software. Context A software license is not required to operate the TD50. Procedure 1 Turn on the Processor Unit. 2 Switch off any firewall applications. 3 Insert the TD50 software media. If the TD50 software is provided on a CD or DVD, and your Processor Unit is not fitted with a suitable drive, copy the files to a USB flash drive. 4 Use a file manager application on the Processor Unit to access the software files. 5 Double-click Setup.exe to start the installation /B

49 Operational procedures 6 Allow the installation wizard to run. Follow the instructions provided. We recommend that you install the TD50 in the default folder suggested by the wizard. In the last dialog box you are permitted to remove old settings. Since this is your first installation of the software, you can disregard this option. 7 Once the software installation has been completed, double-click the TD50 icon on the desktop to start the program. 8 Depending on your operating system parameters, certain dialog boxes may open. a b The Windows 7 Firewall may open a dialog box requesting information about the network. Select Public, and then select Allow access. The operating system may also open other dialog boxes to verify that the TD50 software can run on the computer. You must of course permit this. Upgrading the TD50 operational software When a new TD50 software version is released, it must be installed on your Processor Unit. Prerequisites In order to upgrade the TD50 software, you need the relevant file set on a suitable media. If the TD50 software is provided on a CD or a DVD, and your computer is not fitted with a suitable drive, copy the files to a USB flash drive. This procedure assumes that you are familiar with the Microsoft operating system utilities for file handling. Context The new version of the TD50 will automatically replace the old version. A software license is not required to operate the TD50. Procedure 1 Read the software release note to see if special actions are required. The software release note can be downloaded from our website. 2 Turn on the Processor Unit. 3 Switch off any firewall applications. 4 Insert the TD50 software media. If the TD50 software is provided on a CD or DVD, and your Processor Unit is not fitted with a suitable drive, copy the files to a USB flash drive /B 49

50 Simrad TD50 Reference Manual 5 Use a file manager application on the Processor Unit to access the software files. 6 Double-click Setup.exe to start the installation. 7 Allow the installation wizard to run. Follow the instructions provided. We recommend that you install the TD50 in the default folder suggested by the wizard. In the last dialog box you are permitted to remove old settings. Read the options carefully. Do not remove any existing settings unless this is your intention. 8 Once the software installation has been completed, double-click the TD50 icon on the desktop to start the program. Removing the TD50 operational software If you wish to replace your Processor Unit with a new unit, or simply do not wish to use the TD50 any longer, you can remove the software. Prerequisites This procedure is made for the Microsoft Windows 7 operating system. It is assumed that you are familiar with this operating system. Context Removal of the TD50 software is done using functionality provided by the operating system. Procedure 1 Turn on the Processor Unit. 2 In the bottom-left corner of your desktop, select the Windows Start button. 3 On the right-hand side of the Start menu, select Control Panel. Observe that the Control Panel opens. 4 Uninstall the TD50. a b c In the top right corner of the Control Panel, select Category view. Under Programs, select Uninstall a program. On the list of programs, locate the TD50 software /B

51 Operational procedures d Select the program, and then select Uninstall. e Follow the instructions provided by the wizard. 5 Click the [X] in the top right corner to close the Control Panel /B 51

52 Simrad TD50 Reference Manual Setting up the network communication Topics Configuration summary, page 52 Network addressing in a TD50 system, page 53 Defining the IP address on the TD50 Processor Unit Ethernet adapter, page 55 Defining the IP address on the source system Ethernet adapter, page 56 Setting up the interface between the EK80 and the TD50, page 58 Setting up the interface between the ME70 and the TD50, page 59 Setting up the interface between the MS70 and the TD50, page 60 Allow the TD50 through Windows firewall, page 61 Configuration summary The communication between the TD50 Processor Unit and the source system is made using a high-speed Ethernet cable. You must set up the IP addresses on the Ethernet adapter in each computer, and define the remote control parameters in the source system. Prerequisites It is assumed that you are familiar with the Windows operating systems, computer technology, and interface principles. Context If you are familiar with Ethernet communication you can set up the IP addresses on each computer to match your own network requirements. Alternatively, you can use the suggest settings. Note On each source system computer, you must use a dedicated Ethernet adapter for network communication. Do not use the same Ethernet adapter as the source system uses to communicate with the transceiver. Due to the amount of data, we recommend that you use a dedicated network cable between the computers. Do not route the data traffic through the ship s local area network. You may need to change the settings in the Windows firewall on the TD50 Processor Unit /B

53 Operational procedures Observe the conceptual description of the network addressing. Network addressing in a TD50 system, page 53 Procedure 1 Define the IP address on the TD50 Processor Unit Ethernet adapter. Defining the IP address on the TD50 Processor Unit Ethernet adapter, page 55 2 Define the IP address on the source system Processor Unit Ethernet adapter. If you have more than one source system, each must have a different IP address, but within the same range. Defining the IP address on the source system Ethernet adapter, page 56 3 Set up the remote control properties on each source system. Simrad EK80 Simrad ME70 Simrad MS70 Setting up the interface between the EK80 and the TD50, page 58 Setting up the interface between the ME70 and the TD50, page 59 Setting up the interface between the MS70 and the TD50, page 60 Further requirements You may need to change the settings in the Windows firewall on the TD50 Processor Unit. Allow the TD50 through Windows firewall, page 61 Network addressing in a TD50 system The communication between the TD50 Processor Unit and the source system is made using a high-speed Ethernet cable. You must define which IP Address and Subnet mask the Ethernet adapter in the Processor Unit shall use for this communication. Each source system must have a different IP address than the TD50 Processor Unit, but within the same range. If you are familiar with Ethernet communication you can set up the IP addresses on each computer to match your own network requirements. Alternatively, you can use the suggest settings /B 53

54 Simrad TD50 Reference Manual Note On each source system computer, you must use a dedicated Ethernet adapter for network communication. Do not use the same Ethernet adapter as the source system uses to communicate with the transceiver. Due to the amount of data, we recommend that you use a dedicated network cable between the computers. Do not route the data traffic through the ship s local area network. You may need to change the settings in the Windows firewall on the TD50 Processor Unit. Two "scenarios" are applicable in a TD50 system. 1 The system includes a Simrad ME70 that needs to communicate with bathymetric hardware. If you use the same Ethernet adapter to communicate both with the TD50 and the Hydrographic Processing Unit, the IP address on the ME70 Ethernet adapter is defined by the hydrographic application. Since all IP addresses on the TD50 system must be within the same range, this has an effect on all the other Ethernet adapters. 2 The system does not include a Simrad ME70 that needs to communicate with bathymetric hardware. If your system does not include a bathymetric option you can use any settings that fits you network, or our suggested addresses. Suggested network settings If the TD50 is used in a system that includes the ME70 with the bathymetric option, the following IP and Subnet mask addresses are used. Ethernet adapter IP address Subnet mask Simrad TD Simrad EK Simrad ME Simrad MS The IP address for the ME70 is not suggested, as this is a fixed address. IP address must not be used by any of the systems, as this address is reserved for the Hydrographic Processing Unit. If the TD50 is not in a system that includes the ME70 with the bathymetric option, the following IP and Subnet mask addresses are used /B

55 Operational procedures Ethernet adapter IP address Subnet mask Simrad TD Simrad EK Simrad ME Simrad MS Defining the IP address on the TD50 Processor Unit Ethernet adapter The communication between the TD50 Processor Unit and the source system is made using a high-speed Ethernet cable. You must define which IP Address and Subnet mask the Ethernet adapter in the Processor Unit shall use for this communication. Prerequisites This procedure is made for the Microsoft Windows 7 and 10 operating systems. It is assumed that you are familiar with the Windows operating systems, computer technology, and interface principles. Procedure 1 On the Processor Unit, close the TD50 program. 2 Access the Ethernet adapter settings. This procedure is made for the Microsoft Windows 10 operating system. a b c d e f g In the bottom-left corner of your desktop, select the Windows Start button. On the menu, select Settings. Observe that the Settings dialog box opens. Select Network and Internet. At the bottom of the dialog box, select Change adapter options. Click once on your network adapter to select it, then right-click and select Properties on the short-cut menu. On the list of connections, select Internet Protocol 4 (TCP/IPv4), and then Properties. This procedure is made for the Microsoft Windows 7 operating system. a b c In the bottom-left corner of your desktop, select the Windows Start button. On the right-hand side of the Start menu, select Control Panel. Observe that the Control Panel opens /B 55

56 Simrad TD50 Reference Manual d e f g Select Network and Sharing Center. (If the Control Panel is shown with categories, select View network status and tasks.) On the left-hand menu, select Change adapter settings. Click once on your network adapter to select it, then right-click and select Properties on the short-cut menu. On the list of connections, select Internet Protocol 4 (TCP/IPv4), and then Properties. 3 Select Use the following IP address, and type the IP address and network mask. If the TD50 is not in a system that includes the ME70 with the bathymetric option, the following IP and Subnet mask addresses are used. IP address: Subnet mask: If the TD50 is used in a system that includes the ME70 with the bathymetric option, the following IP and Subnet mask addresses are used. IP address: Subnet mask: Select OK to save the chosen settings, then close all the dialog boxes. Defining the IP address on the source system Ethernet adapter The communication between the TD50 Processor Unit and the source system is made using a high-speed Ethernet cable. You must define which IP Address and Subnet mask the Ethernet adapter in the Processor Unit shall use for this communication. Each source system must have a different IP address than the TD50 Processor Unit, but within the same range. Prerequisites This procedure is made for the Microsoft Windows 7 and 10 operating systems. It is assumed that you are familiar with the Windows operating systems, computer technology, and interface principles. Procedure 1 On the Processor Unit, close the TD50 program. 2 Access the Ethernet adapter settings. This procedure is made for the Microsoft Windows 10 operating system. a In the bottom-left corner of your desktop, select the Windows Start button /B

57 Operational procedures b c d e f g On the menu, select Settings. Observe that the Settings dialog box opens. Select Network and Internet. At the bottom of the dialog box, select Change adapter options. Click once on your network adapter to select it, then right-click and select Properties on the short-cut menu. On the list of connections, select Internet Protocol 4 (TCP/IPv4), and then Properties. This procedure is made for the Microsoft Windows 7 operating system. a b c d e f g In the bottom-left corner of your desktop, select the Windows Start button. On the right-hand side of the Start menu, select Control Panel. Observe that the Control Panel opens. Select Network and Sharing Center. (If the Control Panel is shown with categories, select View network status and tasks.) On the left-hand menu, select Change adapter settings. Click once on your network adapter to select it, then right-click and select Properties on the short-cut menu. On the list of connections, select Internet Protocol 4 (TCP/IPv4), and then Properties. 3 Select Use the following IP address, and type the IP address and network mask. Observe the conceptual description of the network addressing. Network addressing in a TD50 system, page 53 4 Select OK to save the chosen settings, then close all the dialog boxes /B 57

58 Simrad TD50 Reference Manual Setting up the interface between the EK80 and the TD50 The interface between the source system EK80 and TD50 uses a high speed Ethernet connection. The necessary IP addresses must be defined on the Ethernet adapter and in the source system program. Prerequisites It is assumed that you are familiar with the Windows operating systems, computer technology, and interface principles. The Ethernet adapter in the TD50 Processor Unit is set up with the correct IP addresses. Context All steps in this procedure are done in the source system user interface (Simrad EK80). Procedure 1 Open the Setup menu. 2 On the Setup menu, select Installation. 3 Select Remote Control, then As Server to open the page. a b Select the Local IP Address. This is the Internet Protocol (IP) Address of the Ethernet interface adapter located in your Processor Unit. Allow the Local Port to keep its present value. 4 Select Remote Control, then Application Information to open the page. 5 Provide relevant application information. 6 At the bottom of the page, select Apply to save your settings. 7 Select OK to close the dialog box /B

59 Operational procedures Setting up the interface between the ME70 and the TD50 The interface between source system ME70 and TD50 uses a high speed Ethernet connection. The necessary IP addresses must be defined on the Ethernet adapter and in the source system program. Prerequisites It is assumed that you are familiar with the Windows operating systems, computer technology, and interface principles. The Ethernet adapter in the TD50 Processor Unit is set up with the correct IP addresses. Context All steps in this procedure are done in the source system user interface (Simrad ME70). Procedure 1 Open the Setup menu. 2 On the Setup menu, select Installation. Observe that the Installation submenu opens. 3 Select Remoting to open the dialog box. 4 Open the Server page. a b c Select the Local IP Address. This is the Internet Protocol (IP) Address of the Ethernet interface adapter located in your Processor Unit. Allow the Local Port to keep its present value. Provide relevant application information. 5 Open the Client page. a Select the Local IP Address. Set same IP address as on the Server page. This is the Internet Protocol (IP) Address of the Ethernet interface adapter located in your Processor Unit. b Set the Remote IP Address to: c d Allow the Remote Port to keep its present value. Set Communication Mode to Broadcast /B 59

60 Simrad TD50 Reference Manual 6 Select OK to save the chosen settings and close the dialog box. Setting up the interface between the MS70 and the TD50 The interface between the source system MS70 and TD50 uses a high speed Ethernet connection. The necessary IP addresses must be defined on the Ethernet adapter and in the source system program. Prerequisites It is assumed that you are familiar with the Windows operating systems, computer technology, and interface principles. The Ethernet adapter in the TD50 Processor Unit is set up with the correct IP addresses. Context All steps in this procedure are done in the source system user interface (Simrad MS70). Procedure 1 Open the Setup menu. 2 On the Setup menu, select Installation. Observe that the Installation submenu opens. 3 Select Remoting to open the dialog box. 4 Open the Server page. a b c Select the Local IP Address. This is the Internet Protocol (IP) Address of the Ethernet interface adapter located in your Processor Unit. Allow the Local Port to keep its present value. Provide relevant application information. 5 Open the Client page. a Select the Local IP Address. Set same IP address as on the Server page. This is the Internet Protocol (IP) Address of the Ethernet interface adapter located in your Processor Unit. b Set the Remote IP Address to: /B

61 Operational procedures c Allow the Remote Port to keep its present value. d Set Communication Mode to Broadcast. 6 Select OK to save the chosen settings and close the dialog box. Allow the TD50 through Windows firewall You may need to change the settings in the Windows firewall on the TD50 Processor Unit. Prerequisites This procedure is made for the Microsoft Windows 7 and 10 operating systems. It is assumed that you are familiar with the Windows operating systems, computer technology, and interface principles. Procedure 1 On the Processor Unit, close the TD50 program. 2 Change the firewall settings. This procedure is made for the Microsoft Windows 10 operating system. a b c d e f g In the bottom-left corner of your desktop, select the Windows search function. Search for "Windows Firewall" and open it from the search results. On the left-hand menu, select Allow an app or feature through Windows Firewall. Select Change Settings and then Allow another app. Select TD50 on the list, or select Browse to find it. Select Add. Observe that TD50 is placed on the list. Select Domain, Private and Public for full access for all users. This procedure is made for the Microsoft Windows 7 operating system. a b c d e In the bottom-left corner of your desktop, select the Windows Start button. On the right-hand side of the Start menu, select Control Panel. Observe that the Control Panel opens. Select Windows Firewall. If the Control Panel is shown with categories, select System an Security, then open Windows Firewall. On the left-hand menu, select Allow a program or feature through Windows Firewall. Select Change Settings and then Allow another program /B 61

62 Simrad TD50 Reference Manual f Select TD50 on the list, or select Browse to find it. g Select Add. Observe that TD50 is placed on the list. h Select Domain, Private and Public for full access for all users. 3 Click the [X] in the top right corner to close the Control Panel /B

63 User interface User interface Topics Display organisation, page 64 3D presentation, page 65 Track Points, page 67 Top bar, page /B 63

64 Simrad TD50 Reference Manual Display organisation The TD50 consists of specific visual elements that work together. The visual elements provide you with the echo information you need, they help you to control the functionality needed to understand this information, and finally, they allow you to control the operational parameters. A Top bar The top bar gives you fast access to key functionality and navigational information. It also provides a few buttons related to operating system features. B Main menu By default, the Main menu is open. It is positioned on the right hand side of the TD50 presentation. On the top bar, use the Menu button to hide or show the menu. C Secondary menus The bottom of the Main menu holds the tabs to open the secondary menus. D 3D presentation The 3D presentation takes up the largest part of the TD50 presentation. When you start the TD50 3D Visualisation software, the 3D view displays the vessel in the centre, and in Track Position mode /B

65 User interface 3D presentation The 3D presentation takes up the largest part of the TD50 presentation. When you start the TD50 3D Visualisation software, the 3D view displays the vessel in the centre, and in Track Position mode. Description You can use the computer mouse to control the functionality provided by the TD50. The mouse controls the movements of the cursor, and the mouse buttons and scroll wheel are used to control the 3D presentation. Spin the scroll wheel on the mouse to zoom in and out. Press and hold the scroll wheel on the mouse, then move the mouse to pan left-right or up-down. Press and hold the left mouse button, then move the mouse to change the camera angle. Press and hold the right mouse button, then move the mouse to zoom in and out. Tip On the top bar, use the Menu button to hide or show the menu. The Menu button is located on the left side of the top bar /B 65

66 Simrad TD50 Reference Manual Related tasks Getting to know the user interface, page 19 Using the computer mouse to control the 3D functionality, page 23 Initiating vessel tracking and initial camera view, page 25 Related functions Track Points, page /B

67 User interface Track Points The Track Points function allows you to retrieve details from any point along the vessel s track. The Track Points function works with both real-time and playback data. How to open Click on the vessel or along the track to display the tracking point. Description Once initiated, the Track Points function displays a text marker with navigational data and present time. At the same time, a vertical and/or horizontal presentation of the beams - with the range - is shown. A Track points marker with navigation data and time. B Track points marker highlighted in yellow representing the selected point on the vessel track. C Old track points marker displayed with a lighter colour representing the previous track of the vessel. It is based on the time of the data. Neither navigational information nor beams are displayed. D The previous positions of the vessel are shown with a light colour to indicate the historical track. Related tasks Getting to know the user interface, page 19 Using the computer mouse to control the 3D functionality, page 23 Initiating vessel tracking and initial camera view, page /B 67

68 Simrad TD50 Reference Manual Related topics 3D presentation, page /B

69 User interface Top bar Topics Top bar overview, page 69 Logo and product name, page 70 Menu button, page 70 Connections indicator, page 70 Navigational information, page 71 Help button description, page 73 Operating system button descriptions, page 73 Top bar overview The TD50 top bar is located on the top of the display presentation, and stretches from the far left to the far right side. The top bar gives you fast access to key functionality and navigational information. A B C D E Logo and product name This information identifies the brand and the product. Menu button Select this button to hide or show the menu system. Connections The Connections indicator is located on the left side of the top bar. It provides the current status of the communication link between the TD50 and the source systems. Speed read-out The speed information is provided by the source system. Heading read-out The heading read-out is provided by the source system /B 69

70 Simrad TD50 Reference Manual F G H I Geographical position read-out The position information is provided by the source system. Time read-out The time is provided by the source system. Help button Select this button to open the TD50 on-line help. Operating system buttons The operating system function buttons are located on the right side of the top bar. The buttons are Minimize, Maximize and Exit. Logo and product name The brand logo and product name are shown on the left side of the top bar. Description This information identifies the brand and the product. Menu button The Menu button is located on the left side of the top bar. This is an "on/off" button. Description Unless you need to make frequent changes to the operational parameters, you may wish to hide the menu from the TD50 presentation. This will give you more space to present echo data. To hide the menu, select Menu on the top bar. To retrieve it, select Menu one more time. Connections indicator The Connections indicator is located on the left side of the top bar. It provides the current status of the communication link between the TD50 and the source systems. Description The Connections indicator on the top bar serves several purposes. The Connections indicator is presented in different colours. The colours indicate the status of the communication link to the source systems /B

71 User interface The small number in the bottom corner of the Connections indicator presents the number of source systems that are currently connected. Hold the mouse pointer over the Connections icon on the top bar to extract additional information about the connection with the source systems. Double-click Connections on the top bar to open the Connections dialog box. The Connections dialog box lists all the source systems (sonars and/or echo sounders) available on the network. You can choose which source system you wish to connect to, or disconnect from. Details Colours Green indicates connected, and receiving data from source system. Yellow indicates connected, but with problems receiving data. Grey indicates disconnected. Additional information Hold the mouse pointer over the Connections icon on the top bar to extract additional information about the connection with the source systems. The small tooltip provides information about the connection, as well as the data traffic received from the source system. In this context, the phrase source system is used to identify the external application (product, program or device) that transmits information to the TD50. Related tasks Connecting to a source system, page 21 Disconnecting from a source system, page 22 Related dialog boxes Connections dialog box, page 121 Navigational information The navigational information is located on the left side of the top bar /B 71

72 Simrad TD50 Reference Manual Prerequisites To view the TD50 navigational information, a source system must be interfaced and connected in the Connections dialog box. Description These are not buttons, but separate fields that show you useful information related to the vessel and/or TD50 navigation and operation. Note The information shown on the TD50 top bar must not be used for vessel navigation! Speed read-out The vessel s current speed is shown on the top bar. The speed information is provided by the source system. It may real-time information, or data from a replay file. Heading read-out The vessel's current heading is shown on the top bar. The heading read-out is provided by the source system. It may real-time information, or data from a replay file. Geographical position read-out The vessel's current geographical position is shown of the top bar. The position information is provided by the source system. It may real-time information, or data from a replay file. Time read-out The current time is shown on the top bar. The time is provided by the source system. It may real-time information, or data from a replay file /B

73 User interface Help button description The Help button is located on the right side of the top bar. Description Select this button to open the TD50 on-line help. The help system opens on its start page. Navigation in the on-line help file is made by means of the menu system on the left side, as well as the interactive links in the document. Operating system button descriptions The operating system function buttons are located on the right side of the top bar. The buttons are Minimize, Maximize and Close. Minimize button Select this button to minimize the entire TD50 presentation. The program is then only shown as an icon on the operating system s task bar. To re-open, select the button one more time. Maximize/Normalize button Select this button to change the size of the TD50 presentation window. To restore the presentation to its previous size, select the button one more time. Close button Select this button to close the TD50 program /B 73

74 Simrad TD50 Reference Manual Menu system Topics The TD50 menu system, page 75 Using the smart menu buttons, page 76 Main menu, page 78 Display menu, page 80 Visibility menu, page 81 Clip menu, page 82 Setup menu, page /B

75 Menu system The TD50 menu system The menu system is located on the right hand side of the TD50 presentation. Description To change operational settings in the TD50, observe the menu system and its tree structure. It offers a main menu, a set of secondary menus, and several menu buttons. To select operational parameters on the TD50, use the menu system. Each button shows the purpose of the button. Tip Unless you need to make frequent changes to the operational parameters, you may wish to hide the menu from the TD50 presentation. This will give you more space to present echo data. To hide the menu, select Menu on the top bar. To retrieve it, select Menu one more time /B 75

76 Simrad TD50 Reference Manual Using the smart menu buttons Each menu provided by the TD50 contains several menu buttons. Each button shows the purpose of the button. Some of them also display the current setting. Depending on the properties of each individual button, several methods can be used to change settings. You can increase or decrease parameter values by selecting [+] or [-] on the button. You can change parameter values by selecting the button, holding the mouse depressed, and then move the cursor sideways. You can change parameter values by means of the scroll wheel on the mouse or trackball. You can type settings using a computer keyboard (if you have one connected to your Processor Unit). You can select settings from a small menu under the button. You can open a dedicated dialog box. Selecting a numerical parameter using the +/- buttons 1 Move the cursor to either side of the button. 2 Observe that the background colour changes. a b Click on the left side of the button to decrease the numerical value. Click on the right side of the button to increase the numerical value. Selecting a numerical parameter by moving the cursor horizontally 1 Place the cursor on the middle of the button. 2 Click and hold the left mouse button depressed. 3 Move the cursor horizontally: left to decrease the numerical value, or right to increase it. 4 Release the mouse button when the requested value is shown. Selecting a numerical parameter using the scroll wheel 1 Place the cursor on the middle of the button. 2 Spin the scroll wheel in either direction to increase or decrease the numerical value. 3 Release the scroll wheel when the requested value is shown /B

77 Menu system Selecting a numerical parameter using the keyboard 1 Click the middle section of the button to open a text field. 2 Type the numerical value into the text field. If the numerical value exceeds the permitted range for the parameter, the frame in the text field will be red. The value is not accepted, and you must type a value within the accepted range. 3 Press Enter on the keyboard. Selecting a parameter using a menu 1 Click the middle section of the button to open a menu. 2 Select the requested value, command, option or button. The chosen value is applied, and the menu is automatically closed 3 Whenever applicable, you can also access the menu by clicking the left and right side of the button. This method will not show you the menu choices. Click on the left side of the button to select a 'lower' menu choice. Click on the right side of the button to select a 'higher' menu choice. Selecting parameters using a dialog box Click anywhere on the button to open a separate dialog box. When the necessary changes have been made: Select OK to save the chosen settings and close the dialog box. Select Apply to save your settings without closing the dialog box. Select Cancel to close the dialog box without making any changes /B 77

78 Simrad TD50 Reference Manual Main menu The Main menu is located at the top of the menu structure. It offers the most common functions for efficient use of the TD50. How to open By default, the Main menu opens when the TD50 starts. It is positioned on the right hand side of the TD50 presentation. Description Active Beam Group The different source systems that provide data to the TD50 offer these as different data sets. The Active Beam Group function allows you to choose which data sets to present in 3D. You can choose to present one single data set, or several data sets simultaneously. Active Beam Group function, page 87 Track Vessel Once the 3D presentation has been established, you can use the Track Vessel function to select a predefined "camera" position, and track the vessel movements. Track Vessel function, page 89 Start Range The Start Range function allows you to specify from which depth or range the echo information shall start. The value defines from which depth in the water column the presentation shall start. The range value shown and selected is by default applied to all the beam groups from the active source system. Start Range function, page 91 Range The Range setting defines the vertical or horizontal distance from where the echo presentation starts to the end of the search area. The range value shown and selected is by default applied to all the beam groups from the active source system. Range function, page /B

79 Menu system Maximum Level (Sv Max) The purpose of the Maximum Level function is to adjust the upper echo strength limit in the TD50 presentations. It controls the maximum strength an echo can have in order to be shown in the TD50 presentation. By default, the Maximum Level setting is only applied to the currently active beam group. Maximum Level function (Sv Max), page 94 Minimum Level (Sv Min) The purpose of the Minimum Level function is to adjust the echo sensitivity in the TD50 presentations. It controls how weak or strong an echo needs to be in order to be visible in the TD50 presentation. By default, the Minimum Level setting is only applied to the currently active beam group. Minimum Level function (Sv Min), page 96 Secondary menus The bottom of the Main menu holds the tabs to open the secondary menus. Select a tab to open the requested menu. One secondary menu will always be open. Hiding the menu system If you do not need to use the menu system, you can hide it. This allows more space for the TD50 presentation. On the top bar, use the Menu button to hide or show the menu /B 79

80 Simrad TD50 Reference Manual Display menu The Display menu provides basic functions related to the screen behaviour and presentation of TD50 data. How to open Select the Display tab to open the menu. Description Data History The Data History function controls how much of the historical data should be displayed. That is the length of the "echo trail" behind the vessel. Data History function, page 98 Note The Data History function is not implemented for Simrad MS70. Resample The Resample function controls the resolution of the data in the TD50 presentation. A high sample rate provides high resolution and better image quality. As the detail is increased, the size of each sample point on screen shrinks, but the performance cost increases. A high sampling rate requires more resources from the Processor Unit, especially from the graphic adapter. Resample function, page /B

81 Menu system Visibility menu The Visibility menu is used to manipulate the different visual aspects of the TD50 presentation How to open Select the Visibility tab to open the menu. Description The options provided in the Visibility menu are only related to the visual appearance of the TD50 presentations. The choices you make have no effect on the overall performance of the TD50. Show Vessel This is an "on/off" switch. The Show Vessel function enables or disables the vessel model from the TD50 presentation. Show Vessel function, page 101 Show Track This is an "on/off" switch. By means of the Show Track function, you can enable or disable the vessel track in the TD50 presentation. Show Track function, page 102 Show Active Beam Grid This is an "on/off" switch. When enabled, the Show Active Beam Grid function presents the contour of the beam from the currently active beam group. Show Active Beam Grid function, page 102 Show Terrain This is an "on/off" switch. The Show Terrain function is used to enable or disable a terrain model in the TD50 presentation. Show Terrain function, page 103 In order to show the terrain in the TD50 presentation, a terrain model must be available. Unless the necessary terrain files have been imported, the Terrain Selection dialog box opens automatically when you select On. The Terrain Selection dialog box is used to select which bathymetric data sources to use in the TD50 presentation. Terrain Selection dialog box, page /B 81

82 Simrad TD50 Reference Manual Show Detected Seabed This is an "on/off" switch. The Show Detected Seabed function enables or disables the bottom echo from the TD50 presentation. Show Detected Seabed function, page 107 Ocean Grid Cells The Ocean Grid Cells function is used to set the size of the ocean surface grid, or disable the grid altogether from the presentation. Ocean Grid Cells function, page 108 Clip menu The functions on the Clip menu allows you to clip the beam. How to open Select the Clip tab to open the menu. Description In the TD50, the phrase clip is used to describe how you can remove unwanted echo data from the presentation. Such data can for example be acoustic noise, echoes from weak beams, or information from below the seabed. The 3D presentation of any echo requires computer resources. By removing unwanted echoes, you may experience improved performance. Clip to Detected Seabed This is an "on/off" switch. The Clip to Detected Seabed function allows you to remove echo data from the TD50 presentation. When the function is enabled, the Clip Offset function allows you to control where to start the data removal. The starting point is relative to the detected seabed. Clip to Detected Seabed function, page 110 Clip Offset When the Clip to Detected Seabed is enabled, this option controls where to start the data removal. The starting point is relative to the detected seabed. Clip Offset function, page /B

83 Menu system Clip to Sea Surface This is an "on/off" switch. The Clip to Sea Surface function allows you to remove noise and clutter close to the surface. This function is only valid for source systems that provide echo data in a grid. Once Clip to Sea Surface is enabled, you must use the Minimum Distance to Sea Surface and Maximum Distance to Sea Surface functions to define the limits. Clip to Sea Surface function, page 111 The Clip to Sea Surface function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. Minimum Distance to Sea Surface The Min Dist to Sea Surface function allows you to remove the echo data close to the surface. This function is only available when Clip to Sea Surface is enabled. Minimum Distance to Sea Surface function, page 112 Maximum Distance to Sea Surface The Max Dist to Sea Surface function allows you to remove any echo data from below a given depth. This function is only available when Clip to Sea Surface is enabled. Maximum Distance to Sea Surface function, page 113 Outer Beams to Remove The Outer Beams to Remove function allows you to remove any number of beams from the boundaries of the TD50 presentation. Note that the beams are removed in pairs from both sides of the swath. This function may be useful you experience a lot of noise in the outer regions of the swath. Outer Beams to Remove function, page 113 The Outer Beams to Remove function is only valid for source systems that provide echo data as a swath or in a grid. These are currently the Simrad ME70 and MS70 Multibeam scientific systems. Top Beams to Remove The Top Beams to Remove function is used to remove any number of upper beams from the TD50 presentation. This function can be useful if the upper beams in the grid are extorted by noise Top Beams to Remove function, page 114 The Top Beams to Remove function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar /B 83

84 Simrad TD50 Reference Manual Clip Settings The Clip Settings dialog box allows you to define a threshold level (in db) to remove acoustic noise. Clip Settings dialog box, page 115 The Clip Settings dialog box is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. Setup menu The Setup menu allows you to manage the iso-surfaces used by the 3D presentation. You can also make and change connections to the source systems, and - if necessary - restore the default operational settings. How to open Select the Setup tab to open the menu. Description Blend Mode The Blend Mode function allows you to change the data visualization of the TD50 presentation. The function is useful when you wish to locate the strongest echoes. Blend Mode function, page 116 Blend Factor The Blend Factor function controls the transparency when Blend Mode is set to Normal. You can set the "transparency scale" from 1 which is nearly transparent, to 50 which is not transparent at all. Blend Factor function, page 119 Number of Surfaces The Number of Surfaces function allows you to change the quantity of isosurfaces to use in the TD50 presentation. Number of Surfaces function, page /B

85 Menu system Connections The Connections dialog box lists all the source systems (sonars and/or echo sounders) available on the network. You can choose which source system you wish to connect to, or disconnect from. If no systems are listed, you can initiate a search. Connections dialog box, page 121 Restore Default Settings Sometimes it may be useful to reset the TD50 to work with a set of known user settings. A set of "factory settings" is provided for this purpose. Restore Default Settings dialog box, page 123 Advanced Settings The Advanced Settings dialog box offers settings that are not required during daily use of the TD50 Advanced Settings dialog box, page 123 About The TD50 program is released with a specific software version. The About dialog box displays the software version of the TD50 program. The version described in this Reference Manual is 1.3.x. About dialog box, page /B 85

86 Simrad TD50 Reference Manual Functions and dialog boxes Topics Main menu: Functions and dialog boxes, page 87 Display menu; Functions and dialog boxes, page 98 Visibility menu; Functions and dialog boxes, page 101 Clip menu: Functions and dialog boxes, page 109 Setup menu: Functions and dialog boxes, page /B

87 Functions and dialog boxes Main menu: Functions and dialog boxes The Main menu is located at the top of the menu structure. It offers the most common functions for efficient use of the TD50. How to open By default, the Main menu opens when the TD50 starts. It is positioned on the right hand side of the TD50 presentation. Description The bottom of the Main menu holds the tabs to open the secondary menus. Select a tab to open the requested menu. One secondary menu will always be open. Tip If you do not need to use the menu system, you can hide it. This allows more space for the TD50 presentation. On the top bar, use the Menu button to hide or show the menu. Topics Active Beam Group function, page 87 Track Vessel function, page 89 Start Range function, page 91 Range function, page 92 Maximum Level function (Sv Max), page 94 Minimum Level function (Sv Min), page 96 Active Beam Group function The different source systems that provide data to the TD50 offer these as different data sets. The Active Beam Group function allows you to choose which data sets to present in 3D. You can choose to present one single data set, or several data sets simultaneously. How to open This function is opened from the Main menu /B 87

88 Simrad TD50 Reference Manual Description Select Active Beam Group to choose from which source system to present echo data in 3D, and to define which beam group to be the active. The phrase beam group is used to describe the data set provided by any source system. From single beam echo sounders, each beam group contains the information collected by a specific channel. In this context, the phrase channel is used as a common term to identify the combination of transceiver, transducer and operating frequency. From multibeam echo sounders and sonars, each beam group contains information collected in a swath, reference beam or grid. The Active Beam Group function is actually a "dual" function, as you can use for two purposes. 1 Selecting which beam group to be the active beam group. 2 Selecting which beam groups to be shown in the 3D presentation. The source system that provides the currently active beam group is referred to as the active source system. Details Select active beam group Even if you present data from several different beam groups, only one of these can be active. The active beam group is identified in the list, and with its name in the Active Beam Group button. Several parameters in the TD50 will by default only be applied to the active beam group. However, when the Apply to all option appears, you can choose to make your changes apply to all the beam groups simultaneously. Select a group name to enable that specific data set to be the active beam group. The data set is automatically made visible, and the icon changes its appearance to reflect your choice. Your choice is reflected by the appearance of the icon. If you do not wish to see the echo data from the active beam group, select the icon on the left side of the group name to disable it. The active beam group is not visible in the 3D presentation. As a reminder, a larger icon is placed on the left side of the menu button. To enable or disable the 3D presentations from the other beam groups, select the icon on the left side of the beam group name /B

89 Functions and dialog boxes Select beam group presentation Select an icon to allow the echo information from that group to be presented in 3D. Your choice is reflected by the appearance of the icon. Select the icon one more time to hide the echo information. Related tasks Selecting which beam groups and/or channels to present, page 24 Track Vessel function Once the 3D presentation has been established, you can use the Track Vessel function to select a predefined "camera" position, and track the vessel movements. How to open This function is opened from the Main menu. Description The TD50 supports several tracking modes. In each mode, the camera is placed in a specific location related to the vessel. When the vessel moves, the movements are tracked related to its position, rotation or heading. With Track Vessel disabled, the vessel will soon disappear from view due to its speed and course. Tip In some modes only the zoom functionality is provided. You can not rotate or pan the vessel. If your mouse control does not work as expected, always check the Track Vessel setting. Details Off When Track Vessel is switched off, the camera control is disabled. The vessel will continue on its track across the screen, but it will not be locked to the centre of the presentation. With Track Vessel disabled, the vessel will soon disappear from view due to its speed and course /B 89

90 Simrad TD50 Reference Manual Track Position In Track Position mode, the camera control is enabled, it will always point in the same direction, and follow any changes in the vessel s position. You can change the camera angle, but it will be locked to the vessel s position. So if you make the camera face due north, it will remain in that position even if the vessel changes its course. Track Rotation In Track Rotation mode, the camera control is enabled, it is fixed to the vessel rotation, and will follow any changes in the vessel s position and/or rotation. The vessel s position and your camera angle may change, but the camera is still locked to the vessel s heading. This means that even if the vessel changes its course, the camera angle will remain in the same position relative to the new heading. If you set the camera to point at the starboard side of the vessel, it will remain in that position. Towards Stern In Towards Stern mode, the camera control is enabled, and oriented towards the vessel s stern. The vessel is locked in the centre of the presentation, and its track is displayed relative to position and heading. In this mode only the zoom functionality is provided. You can not rotate or pan the vessel. Three-Quarter View In Three-Quarter View mode, the camera control is enabled, and oriented with a fixed 210 degrees angle. In this mode only the zoom functionality is provided. You can not rotate or pan the vessel. Related tasks Initiating vessel tracking and initial camera view, page /B

91 Functions and dialog boxes Start Range function The Start Range function allows you to specify from which depth or range the echo information shall start. The value defines from which depth in the water column the presentation shall start. The range value shown and selected is by default applied to all the beam groups from the active source system. How to open This function is opened from the Main menu. Description For echo sounder information (echograms), the Start Range setting defines from which depth the echogram shall start. In other words, this is the depth of the "top" of the echogram. The Range setting specifies the "bottom" depth, while the Start Range setting specifies the "top" depth. For sonar information, the Start Range setting defines from which distance from the transducer the echo presentation shall start. Tip If you wish to apply the new setting to all current beam groups, select Apply to all. You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. Example Setting Range and Start Range in an echogram In an echogram, set the Start Range value to 20 meters. This will make the presentation start from 20 meters below the sea surface (provided that the transducer offset has been defined). Set Range to 40 meters. The presentation will now show the echoes detected between 20 and 60 meters from the transducer. Provided that the depth is larger than 60 meters, the bottom contour is not shown. Any echoes closer than 20 meters from the transducer will not be detected. Example Setting Range and Start Range in a sonar presentation In the sonar presentation, set the Start Range value to 50 meters. This will set the starting point of the presentation to 50 meters from the transducer. Set Range to 250 meters. The presentation will now show the echoes detected from 50 to 300 meters. Any echoes closer than 50 meters from the transducer will not be detected /B 91

92 Simrad TD50 Reference Manual Details Start Range Apply to all This setting controls the upper start depth for the presentation. The vertical height of the presentation is the value defined by the Range setting. On sonar data, this setting controls where the echo presentation starts. The horizontal distance from the start to the end of the presentation is defined by the Range setting. Select the middle of the button to open it. You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. If you wish to apply the new setting to all current beam groups, select Apply to all. Apply to source This setting is by default applied to all beam groups from the active source system. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Related tasks Choosing the start range and range in the echo presentations, page 30 Range function The Range setting defines the vertical or horizontal distance from where the echo presentation starts to the end of the search area. The range value shown and selected is by default applied to all the beam groups from the active source system. How to open This function is opened from the Main menu. Description For echo sounder information (echograms), the Range setting defines the vertical range from the start depth and down. In other words, this is the vertical distance between the "top" and the "bottom" of the echogram. The Range setting specifies the "bottom" depth, while the Start Range setting specifies the "top" depth. For sonar information, the Range setting defines how "far" you wish the TD50 to detect echoes. In other words, you specify the horizontal or vertical distance from the vessel to the outer edge of the search area. Even though you can choose a large range value, that does not mean that you can detect your targets on the same range. The range value only defines the range that is shown in the views. Actual target detection will always depend on /B

93 Functions and dialog boxes the operational environment, such as water temperature, salinity, interference and layers in the water column. Tip If you wish to apply the new setting to all current beam groups, select Apply to all. You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. Details Range Apply to all Example Setting Range and Start Range in an echogram In an echogram, set the Start Range value to 20 meters. This will make the presentation start from 20 meters below the sea surface (provided that the transducer offset has been defined). Set Range to 40 meters. The presentation will now show the echoes detected between 20 and 60 meters from the transducer. Provided that the depth is larger than 60 meters, the bottom contour is not shown. Any echoes closer than 20 meters from the transducer will not be detected. Example Setting Range and Start Range in a sonar presentation In the sonar presentation, set the Start Range value to 50 meters. This will set the starting point of the presentation to 50 meters from the transducer. Set Range to 250 meters. The presentation will now show the echoes detected from 50 to 300 meters. Any echoes closer than 50 meters from the transducer will not be detected. This setting controls the displayed distance from the start to the end of the echo presentation. The starting point of the presentation is the value defined by the Start Range setting. Select the middle of the button to open it. You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. If you wish to apply the new setting to all current beam groups, select Apply to all /B 93

94 Simrad TD50 Reference Manual Apply to source This setting is by default applied to all beam groups from the active source system. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Related tasks Choosing the start range and range in the echo presentations, page 30 Maximum Level function (Sv Max) The purpose of the Maximum Level function is to adjust the upper echo strength limit in the TD50 presentations. It controls the maximum strength an echo can have in order to be shown in the TD50 presentation. By default, the Maximum Level setting is only applied to the currently active beam group. How to open This function is opened from the Main menu. Description The volume backscatter (Sv) (echo strength) from the targets in the beam change depending on the target properties. This functionality allows you to identify the nature of the schools, and discriminate between them. While most echoes are weak, some - for example the bottom echo, large schools or noise - may be strong. These strong echoes can be removed from the presentation by adjusting the maximum level. While the Minimum Level function controls the visibility of the weakest echoes, the Maximum Level function controls the visibility of the strongest echoes. Used together, these functions allow you to apply a "filter" effect to remove unwanted echoes. The echo strength (A) changes with time. The Minimum Level (B) is adjusted up or down. Reducing the Minimum Level setting will increase the sensitivity. The Maximum Level (C) is also adjusted up or down. Increasing the Maximum Level setting will increase the sensitivity and allow stronger echoes to be visible. Only echoes over the Minimum Level and under the Maximum Level will be shown (D). You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. Without a keyboard, adjust the setting by clicking the [+] and [ ] buttons. You can /B

95 Functions and dialog boxes also click the middle of the button, hold the mouse button depressed, and then move the mouse - and cursor - sideways. By default, the setting only applies to the currently active beam group. Details Maximum Level (Sv Max) Apply to all This setting controls the maximum level an echo can have in order to be included in the presentation of the currently active beam group. When the numerical db level is increased, the stronger echoes will start to disappear from the presentation. Select either side of the button to choose a value. Select the middle of the button to open it. If you have a keyboard connected to the TD50, you can type the requested value into the text box. You can also change the value by selecting - and holding - the middle of the button, and move the cursor sideways. Move the cursor towards left to reduce the value, or towards right to increase the value. Release the mouse button when the requested value is shown in the button. If you wish to apply the new setting to all current beam groups, select Apply to all. Apply to source If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Related tasks Adjusting the minimum level (echo sensitivity), page 27 Adjusting the maximum level of the received echoes, page /B 95

96 Simrad TD50 Reference Manual Minimum Level function (Sv Min) The purpose of the Minimum Level function is to adjust the echo sensitivity in the TD50 presentations. It controls how weak or strong an echo needs to be in order to be visible in the TD50 presentation. By default, the Minimum Level setting is only applied to the currently active beam group. How to open This function is opened from the Main menu. Description The volume backscatter (Sv) (echo strength) from the targets in the beam change depending on the target properties. This functionality allows you to identify the nature of the schools, and discriminate between them. On the TD50 you do not change the actual gain, but the minimum level of the received echo. The echo strength (A) changes with time. The Minimum Level (B) is adjusted up or down. Reducing the Minimum Level setting will increase the sensitivity. Only echoes over the Minimum Level will be shown (C). Note While the Minimum Level function controls the visibility of the weakest echoes, the Maximum Level function controls the visibility of the strongest echoes. Used together, these functions allow you to apply a "filter" effect to remove unwanted echoes. You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. Without a keyboard, adjust the setting by clicking the [+] and [ ] buttons. You can also click the middle of the button, hold the mouse button depressed, and then move the mouse - and cursor - sideways. By default, the setting only applies to the currently active beam group /B

97 Functions and dialog boxes Details Minimum Level (Sv Min) Apply to all This setting controls the minimum level applied to the currently active beam group. When the numerical db level is decreased, the weaker echoes will start to appear in the presentation. This does not happen because the signal amplification is increased, but because the "visual sensitivity" has been improved. Select either side of the button to choose a value. Select the middle of the button to open it. If you have a keyboard connected to the TD50, you can type the requested value into the text box. You can also change the value by selecting - and holding - the middle of the button, and move the cursor sideways. Move the cursor towards left to reduce the value, or towards right to increase the value. Release the mouse button when the requested value is shown in the button. If you wish to apply the new setting to all current beam groups, select Apply to all. Apply to source If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Related tasks Adjusting the minimum level (echo sensitivity), page 27 Adjusting the maximum level of the received echoes, page /B 97

98 Simrad TD50 Reference Manual Display menu; Functions and dialog boxes The Display menu provides basic functions related to the screen behaviour and presentation of TD50 data. How to open Select the Display tab to open the menu. Topics Data History function, page 98 Resample function, page 99 Data History function The Data History function controls how much of the historical data should be displayed. That is the length of the "echo trail" behind the vessel. How to open This function is opened from the Display menu. Description The Data History function allows you to change how much data to be displayed after the vessel. The amount is given in percent of the historical data buffer. Note The Data History function is not implemented for Simrad MS70. The Data History function depends on the amount of random access memory (RAM) in the Processor Unit. The TD50 software allocates a specific memory resource for this use. If you add additional source systems to the TD50, the memory must be shared between these systems. The amount of data history will thus be reduced when multiple source systems are connected. To change the setting, move the cursor to either side of the button. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. Select the middle of the button to open a small menu with the available options. By default, the setting only applies to the currently active beam group /B

99 Functions and dialog boxes Tip If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Related tasks Adjusting the length of the echo trail, page 32 Resample function The Resample function controls the resolution of the data in the TD50 presentation. A high sample rate provides high resolution and better image quality. How to open This function is opened from the Display menu. Description The Resample function allows you to control the quality of the image. A higher sampling rate offers better detail, and thus increased image quality. The button menu offers several quality options ranging from coarse to very detailed. Note As the detail is increased, the size of each sample point on screen shrinks, but the performance cost increases. A high sampling rate requires more resources from the Processor Unit, especially from the graphic adapter. To change the setting, move the cursor to either side of the button. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. Select the middle of the button to open a small menu with the available options. By default, the setting only applies to the currently active beam group. Tip If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group /B 99

100 Simrad TD50 Reference Manual Related tasks Adjusting the image quality, page /B

101 Functions and dialog boxes Visibility menu; Functions and dialog boxes The Visibility menu is used to manipulate the different visual aspects of the TD50 presentation How to open Select the Visibility tab to open the menu. Description The options provided in the Visibility menu are only related to the visual appearance of the TD50 presentations. The choices you make have no effect on the overall performance of the TD50. Topics Show Vessel function, page 101 Show Track function, page 102 Show Active Beam Grid function, page 102 Show Terrain function, page 103 Terrain Selection dialog box, page 104 Show Detected Seabed function, page 107 Ocean Grid Cells function, page 108 Show Vessel function This is an "on/off" switch. The Show Vessel function enables or disables the vessel model from the TD50 presentation. How to open This function is opened from the Visibility menu. Description To change the setting, move the cursor to either side of the button, and select On or Off. Select Off to remove the vessel from the presentation. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD /B 101

102 Simrad TD50 Reference Manual Related tasks Removing the vessel from the TD50 presentation, page 37 Show Track function This is an "on/off" switch. By means of the Show Track function, you can enable or disable the vessel track in the TD50 presentation. How to open This function is opened from the Visibility menu. Description To change the setting, move the cursor to either side of the button, and select On or Off. Select Off to remove the vessel s historical track from the presentation. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Related tasks Removing the vessel s wake from the presentation, page 38 Show Active Beam Grid function This is an "on/off" switch. When enabled, the Show Active Beam Grid function presents the contour of the beam from the currently active beam group. How to open This function is opened from the Visibility menu. Description Even if you present data from several different beam groups, only one of these can be active. Several parameters in the TD50 will by default only be applied to the active beam group. To identify the active beam group in the TD50 presentation, you can choose to see the contours of the beam group. To change the setting, move the cursor to either side of the button, and select On or Off. Select Off to remove the active beam group contours from the presentation. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD /B

103 Functions and dialog boxes Related tasks Showing the contours of the active beam group, page 38 Show Terrain function This is an "on/off" switch. The Show Terrain function is used to enable or disable a terrain model in the TD50 presentation. How to open This function is opened from the Visibility menu. Description To change the setting, move the cursor to either side of the button, and select On or Off. Select Off to remove the terrain model from the presentation. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Note In order to show the terrain in the TD50 presentation, a terrain model must be available. Unless the necessary terrain files have been imported, the Terrain Selection dialog box opens automatically when you select On. The Terrain Selection dialog box is used to select which bathymetric data sources to use in the TD50 presentation. You can define which projection to use, and provide a vertical offset to compensate for different vertical datums. To open the Terrain Selection dialog box, select the middle of the Show Terrain button, and select Terrain Selection. Related tasks Showing the seabed topography on the TD50 presentation, page 39 Importing bathymetric files to show the seabed terrain, page 40 Related dialog boxes Terrain Selection dialog box, page /B 103

104 Simrad TD50 Reference Manual Terrain Selection dialog box The Terrain Selection dialog box is used to select which bathymetric data sources to use in the TD50 presentation. You can define which projection to use, and provide a vertical offset to compensate for different vertical datums. How to open To open the Terrain Selection dialog box, select the middle of the Show Terrain button, and select Terrain Selection. The Show Terrain function is located on the Visibility menu. Description In order to create a terrain model for use in the TD50 presentations, you need the vessel s geographical position, and the relevant TIFF file with the terrain image. The position is provided with the echo data from the source system, but it is provided as latitude and longitude values in WGS84 datum. For the 3D presentation, the TD50 converts this information to a UTM projection using the vessel s current position to establish the UTM zone. The information provided in the TIFF file contain geographical references in UTM projection. The metadata may or may not contain information about which UTM zone they are stored in. The TD50 does not attempt to read this metadata. If the coordinates in the TIFF files are given in another UTM zone than what is shown in this dialog box, change it to match the zone from the TIFF file. Tip For conversion and re-projection of bathymetry data, we recommend the GDAL program suite. GDAL is an open source translator library for raster and vector geospatial data formats. As a library, it presents both a single raster abstract data model and a single vector abstract data model to the calling application for all supported formats. It also comes with a variety of useful command line utilities for data translation and processing. For more information, see /B

105 Functions and dialog boxes Bathymetry data must be in UTM projection using the WGS84 datum (EPSG:326xx where xx indicates UTM zone number). The files must be in TIFF format, and we expect the TIFF data to be encoded as Float32 using negative values to indicate depth. Details Override automatic projection UTM Zone If the UTM zone provided by the bathymetric TIFF files does not match the UTM zone established by the TD50 during the position conversion, you must manually override the automatic projection. Select Override automatic projection. This allows you to insert the correct UTM zone on the northern or southern hemisphere. When Override automatic projection has been enabled, you must provide the UTM Zone. Northern Hemisphere When Override automatic projection has been enabled, you must specify if you are located on the northern or southern hemisphere. Activating this option changes how the coordinates from the TIFF file are interpreted. Vertical Offset Use this option if it is necessary to move the terrain "up" and "down". This may be required if the reference system used in bathymetric files differ from the reference used in TD50. Files Use Add or Remove to handle the bathymetric terrain files. The files must be in TIFF format, and we expect the TIFF data to be encoded as Float32 using negative values to indicate depth. Additional information About UTM (Universal Transverse Mercator) The Universal Transverse Mercator (UTM) conformal projection uses a 2-dimensional Cartesian coordinate system to give locations on the surface of the earth. It is a horizontal position representation. This means that it is used to identify locations on the earth independently of vertical position, but differs from the traditional method of latitude and longitude in several respects. The UTM system is not a single map projection. The system instead divides the earth into sixty zones, each a six-degree band of longitude, and uses a secant transverse Mercator projection in each zone /B 105

106 Simrad TD50 Reference Manual About UTM Projection Global position reference systems (GPS) provide position information as latitude and longitude in a geodetic coordinate system. Other global positioning systems (GPS) provide the geographical positions in the UTM projection. This is a flat surface projection. It is defined by a UTM zone with north and east distances from the reference ("0") point of the zone. The applicable datum must be known. This may for example be WGS84 or ED87. About UTM zones The UTM system divides the Earth between 80 S and 84 N latitude into 60 zones, each 6 of longitude in width. Zone 1 covers longitude 180 to 174 W. Zone numbering increases eastward to zone 60, which covers longitude 174 E to 180. Each of the 60 zones uses a transverse Mercator projection that can map a region of large north-south extent with low distortion. By using narrow zones of 6 of longitude (up to 668 km) in width, and reducing the scale factor along the central meridian, the amount of distortion is held below 1 part in 1,000 inside each zone. Distortion of scale increases to at the zone boundaries along the equator. About Geodetic datum In surveying and geodesy, a datum is a reference system or an approximation of the Earth's surface against which positional measurements are made for computing locations. Horizontal datums are used for describing a point on the Earth's surface in latitude and longitude, or in another coordinate system. Vertical datums are used to measure elevations or underwater depths. The horizontal datum is the model used to measure positions on the Earth. A specific point on the Earth can have substantially different coordinates, depending on the datum used to make the measurement. A vertical datum is used as a reference point for elevations of surfaces and features on the Earth including terrain, bathymetry, water levels, and man-made structures. Vertical datums are either tidal (based on sea levels), gravimetric (based on a geoid), or geodetic. The vertical geodetic datum is based on the same ellipsoid models of the Earth as used for computing horizontal datums. About WGS84 (World Geodetic System) The World Geodetic System (WGS) is a standard for use in cartography, geodesy, and navigation including global positioning systems (GPS). It comprises a standard coordinate system for the Earth, a standard spheroidal reference surface (the datum or reference ellipsoid) for raw altitude data, and a gravitational equipotential surface (the geoid) that defines the nominal sea level. The latest revision is WGS 84 (also known as WGS 1984, EPSG:4326), established in 1984 and last revised in It is geocentric and globally consistent within ±1 m /B

107 Functions and dialog boxes The coordinate origin of WGS 84 is meant to be located at the Earth's centre of mass. The error is believed to be less than 2 cm. About the TIFF file format Tagged Image File Format, abbreviated TIFF or TIF, is a computer file format for storing raster graphics images, popular among graphic artists, the publishing industry, and photographers. TIFF is widely supported by scanning, faxing, word processing, optical character recognition, image manipulation, desktop publishing, and page-layout applications. The TIFF format is also used to contain bathymetric data for terrain models. In order to position the information geographically, the GeoTIFF metadata format is used. The information provided in the TIFF file contain geographical references in UTM projection. The metadata may or may not contain information about which UTM zone they are stored in. About GeoTIFF metadata GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF file. The potential additional information includes map projection, coordinate systems, ellipsoids, datums, and everything else necessary to establish the exact spatial reference for the file. For more information, see trac.osgeo.org/geotiff. Related tasks Showing the seabed topography on the TD50 presentation, page 39 Importing bathymetric files to show the seabed terrain, page 40 Related functions Show Terrain function, page 103 Show Detected Seabed function This is an "on/off" switch. The Show Detected Seabed function enables or disables the bottom echo from the TD50 presentation. How to open This function is opened from the Visibility menu. Description The Show Detected Seabed function only applies to echo sounder data. To change the setting, move the cursor to either side of the button, and select On or Off. Select Off to remove the bottom echo from the presentation /B 107

108 Simrad TD50 Reference Manual Tip If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Related tasks Showing the bottom echo in the presentation, page 41 Ocean Grid Cells function The Ocean Grid Cells function is used to set the size of the ocean surface grid, or disable the grid altogether from the presentation. How to open This function is opened from the Visibility menu. Description The grid provided by the Ocean Grid Cells function is only offered to give you a sense of distance. Select the middle of the button to open a small menu with the available options. Select requested grid size, or select Off to disable the grid. This function is only related to the visual appearance of the TD50 presentation. The choice you make has no effect on the overall performance of the TD50. Related tasks Creating a surface grid in the TD50 presentation, page /B

109 Functions and dialog boxes Clip menu: Functions and dialog boxes The functions on the Clip menu allows you to clip the beam. How to open Select the Clip tab to open the menu. Description In the TD50, the phrase clip is used to describe how you can remove unwanted echo data from the presentation. Such data can for example be acoustic noise, echoes from weak beams, or information from below the seabed. The 3D presentation of any echo requires computer resources. By removing unwanted echoes, you may experience improved performance. The Clip to Sea Surface function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. The Outer Beams to Remove function is only valid for source systems that provide echo data as a swath or in a grid. These are currently the Simrad ME70 and MS70 Multibeam scientific systems. The Top Beams to Remove function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. The Clip Settings dialog box is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. Topics Clip to Detected Seabed function, page 110 Clip Offset function, page 110 Clip to Sea Surface function, page 111 Minimum Distance to Sea Surface function, page 112 Maximum Distance to Sea Surface function, page 113 Outer Beams to Remove function, page 113 Top Beams to Remove function, page 114 Clip Settings dialog box, page /B 109

110 Simrad TD50 Reference Manual Clip to Detected Seabed function This is an "on/off" switch. The Clip to Detected Seabed function allows you to remove echo data from the TD50 presentation. The function makes it possible to remove noise and clutter close to the seabed. How to open This function is opened from the Clip menu. Description To change the setting, move the cursor to either side of the button, and select On or Off. When the function is enabled, the Clip Offset function allows you to control where to start the data removal. The starting point is relative to the detected seabed. Related tasks Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Reducing noise by removing beams from the presentation, page 45 Setting a threshold level to remove noise, page 46 Related functions Clip Offset function, page 110 Clip Offset function When the Clip to Detected Seabed is enabled, this option controls where to start the data removal. The starting point is relative to the detected seabed. Prerequisites This function is only available when Clip to Detected Seabed is enabled. How to open This function is opened from the Clip menu /B

111 Functions and dialog boxes Description Select either side of the button to choose a value. Select the middle of the button to open it. If you have a keyboard connected to the TD50, you can type the requested value into the text box. You can also click the middle of the button, hold the mouse button depressed, and then move the mouse - and cursor - sideways. For more information, see: Clip to Detected Seabed function, page 110 Related tasks Remove noise and clutter close to the seabed, page 43 Related functions Clip to Detected Seabed function, page 110 Clip to Sea Surface function This is an "on/off" switch. The Clip to Sea Surface function allows you to remove noise and clutter close to the surface. Prerequisites This function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. How to open This function is opened from the Clip menu. Description To change the setting, move the cursor to either side of the button, and select On or Off. Once Clip to Sea Surface is enabled, you must use the Minimum Distance to Sea Surface and Maximum Distance to Sea Surface functions to define the limits. Related tasks Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Reducing noise by removing beams from the presentation, page 45 Setting a threshold level to remove noise, page /B 111

112 Simrad TD50 Reference Manual Related functions Minimum Distance to Sea Surface function, page 112 Maximum Distance to Sea Surface function, page 113 Minimum Distance to Sea Surface function The Min Dist to Sea Surface function allows you to remove the echo data close to the surface. It will remove all information from the sea surface and down to the specified depth Prerequisites This function is only available when Clip to Sea Surface is enabled. The Clip to Sea Surface function is only valid for source systems that provide echo data in a grid. How to open This function is opened from the Clip menu. Description You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. You can also click the middle of the button, hold the mouse button depressed, and then move the mouse - and cursor - sideways. You can change parameter values by means of the scroll wheel on the mouse or trackball. For more information, see: Clip to Sea Surface function, page 111 Related tasks Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Related functions Clip to Sea Surface function, page 111 Maximum Distance to Sea Surface function, page /B

113 Functions and dialog boxes Maximum Distance to Sea Surface function The Max Dist to Sea Surface function allows you to remove any echo data from below a given depth. Information between the specified depth and the surface will be shown. Prerequisites This function is only available when Clip to Sea Surface is enabled. The Clip to Sea Surface function is only valid for source systems that provide echo data in a grid. How to open This function is opened from the Clip menu. Description You can only type a new value if a computer keyboard is connected to your TD50 Processor Unit. You can also click the middle of the button, hold the mouse button depressed, and then move the mouse - and cursor - sideways. You can change parameter values by means of the scroll wheel on the mouse or trackball. For more information, see: Clip to Sea Surface function, page 111 Related tasks Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Related functions Clip to Sea Surface function, page 111 Minimum Distance to Sea Surface function, page 112 Outer Beams to Remove function The Outer Beams to Remove function allows you to remove any number of beams from the boundaries of the TD50 presentation. Note that the beams are removed in pairs from both sides of the swath. This function may be useful you experience a lot of noise in the outer regions of the swath. Prerequisites This function is only valid for source systems that provide echo data as a swath or in a grid. These are currently the Simrad ME70 and MS70 Multibeam scientific systems /B 113

114 Simrad TD50 Reference Manual How to open This function is opened from the Clip menu. Description The beams in the outer boundaries of any beam are easily subjected to acoustic noise. This function allows you to remove any number of beams from the presentation. Related tasks Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Reducing noise by removing beams from the presentation, page 45 Setting a threshold level to remove noise, page 46 Top Beams to Remove function The Top Beams to Remove function is used to remove any number of upper beams from the TD50 presentation. This function can be useful if the upper beams in the grid are extorted by noise Prerequisites This function is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. How to open This function is opened from the Clip menu. Description The beams in the outer boundaries of any beam are easily subjected to acoustic noise. This function allows you to remove any number of beams from the presentation. Related tasks Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Reducing noise by removing beams from the presentation, page 45 Setting a threshold level to remove noise, page /B

115 Functions and dialog boxes Clip Settings dialog box The Clip Settings dialog box allows you to define a threshold level (in db) to remove acoustic noise. Prerequisites The Clip Settings dialog box is only valid for source systems that provide echo data in a grid. This is currently only the Simrad MS70 Multibeam scientific sonar. How to open This dialog box is opened from the Clip menu. Description All hydroacoustic systems are vulnerable for acoustic noise, and due to the sensitivity of the MS70 it may show you noise at the outer end of the beams. The data filter in the Clip Settings dialog box allows you to define a limit to remove this noise. Example Image that you have three measurements along the beam; -60, -50 and -20 db. If you have set Minimum Value (Sv Min) to -60 db, Maximum Value (Sv Max) to -40 db and Number of Surfaces to 3, the TD50 will draw isosurfaces at -60, -50 and -40 db. However, the -20 db is acoustic noise. By means of the data filter you can set a threshold to remove this noise. If you set the filter value to -30 db isosurface -40 db is removed, while the -50 db surface is kept Related tasks Remove noise and clutter close to the seabed, page 43 Remove noise and clutter close to the sea surface, page 44 Setting a threshold level to remove noise, page /B 115

116 Simrad TD50 Reference Manual Setup menu: Functions and dialog boxes The Setup menu allows you to manage the iso-surfaces used by the 3D presentation. You can also make and change connections to the source systems, and - if necessary - restore the default operational settings. How to open Select the Setup tab to open the menu. Topics Blend Mode function, page 116 Blend Factor function, page 119 Number of Surfaces function, page 120 Connections dialog box, page 121 Restore Default Settings dialog box, page 123 Advanced Settings dialog box, page 123 About dialog box, page 125 Blend Mode function The Blend Mode function allows you to change the data visualization of the TD50 presentation. The function is useful when you wish to locate the strongest echoes. How to open This function is opened from the Setup menu. Description The TD50 uses coloured isosurfaces to present the echo data in three dimensions. Seven colours are used. Grey represents the weakest echoes, while red are used to show the strongest echoes. Between these, blue, green, yellow, and pink are used to present increasing echo strength. Since the isosurfaces will overlap, information may be hidden. For this reason the isosurfaces are transparent, and the Blend Mode function allows you to control the transparency. When you set Blend Mode to Normal, you can adjust the Blend Factor. Tip In short, the Maximum intensity mode offers priority to strong echoes, while Normal mode will have a more "realistic" effect /B

117 Functions and dialog boxes In this example, Blend Mode is set to Normal with Blend Factor 25 (left), Hybrid (middle), and Maximum intensity (right). Observe how the strong echoes are easier to see in Maximum intensity mode. Details Normal In Normal mode, each isosurface represents volume with an associated colour. The colouring depicts the echo intensities. Each isosurface with its volume adds to the contour and realism of the echo data. When you set Blend Mode to Normal, you can adjust the Blend Factor. The Blend Factor function controls the transparency. You can set the "transparency scale" from 1 which is nearly transparent, to 50 which is not transparent at all. Hybrid When set to Hybrid mode, you will apply a mixture of Normal and Maximum Intensity modes. The isosurfaces with the strongest echo levels will always be shown. Isosurfaces with weaker echoes will be blended together. Maximum intensity In Maximum intensity mode, the coloured isosurfaces are not blended together. The isosurfaces with the strongest echoes will always be displayed, even though they may be hidden behind other surfaces with weaker echoes. The advantage with the Maximum intensity mode is the improved visibility at greater distances, since the strongest signals are not hidden. The disadvantage is that the /B 117

118 Simrad TD50 Reference Manual contours are not as well defined as in Normal mode, since the weaker signals are removed to show the stronger echoes behind them. In short, the Maximum intensity mode offers priority to strong echoes, while Normal mode will have a more "realistic" effect. About isosurfaces Isosurfaces are used to visualize volumetric data, that is data defined in three dimensions. The isosurface for a given value "w" is the set of all points in the domain for which the function has the value "w". Under a fairly common set of conditions this set is a "surface" or "set of surfaces". In two dimensions this concept is reduced to an isoline. Isolines can be compared to topographical maps, as the isoline is similar to a contour line. The isosurface is thus the "3D version" of an isoline. Mathematically, an isosurface plot extracts the surfaces of constant "w" from a function of the form w = f(x, y, z). An isosurface is a three-dimensional analog of an isoline. It is a surface that represents points of a constant value (e.g. pressure, temperature, velocity, density) within a volume of space; in other words, it is a level set of a continuous function whose domain is 3D-space. Isosurfaces are normally displayed using computer graphics, and are used as data visualization methods in computational fluid dynamics (CFD) [ ]. Examples of isosurfaces are 'Metaballs' or 'blobby objects' used in 3D visualisation. November 2017 Each isosurface is like a "sheet of paper", where the data has identical values. In order to use isosurfaces, you must select which data to use. For the TD50, these data are the echo data provided by the source systems. The echoes from each MS70 transmission ("ping") are defined in three dimensions. From echo sounders, the data are defined in two dimensions, but since they are presented over time, this adds the third dimension. The isosurfaces are then defined using the minimum and maximum echo levels combined with the requested number of surface. Example Set Minimum Level to -60 db, and Maximum Level to -40 db. This leaves a 20 db "visual space". If you set Number of Surfaces to three, the TD50 will create isosurfaces for -60 db, -50 db and -40 db. The TD50 will process the echo data, and calculate where the surfaces shall be drawn. In order to tell the various isosurfaces apart, each has a separate colour. The surfaces with the lowest value (weakest echoes) are grey, while those with the strongest echoes are red /B

119 Functions and dialog boxes Since we operate in three dimensions, some isosurfaces will always be hidden behind others. The surfaces are often shaped like "balls" that are placed inside each other. A small "ball" with strong echoes will be placed inside a larger "ball" with weaker echoes. Example Imagine the ambient temperatures in the room you are in. Around each lamp you have an isosurface that represents the high temperature close to the light bulb. It is probably shaped just like the bulb. As the temperature drops with increasing distance, additional surfaces are layered on top of each - just like an onion. You may for example have one new isosurface with every 5 degrees drop in temperature. In order to see the smaller balls, the isosurfaces in TD50 are transparent. The amount of transparency is controlled using the Blend Mode function. Related tasks Enhancing the strongest echoes, page 34 Related functions Blend Factor function, page 119 Number of Surfaces function, page 120 Blend Factor function The Blend Factor function controls the transparency when Blend Mode is set to Normal. You can set the "transparency scale" from 1 which is nearly transparent, to 50 which is not transparent at all. Prerequisites The Blend Factor function is only available when Blend Mode is set to Normal. How to open This function is opened from the Setup menu /B 119

120 Simrad TD50 Reference Manual Description To change the setting, move the cursor to either side of the button. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. You can also change the value by selecting - and holding - the middle of the button, and move the cursor sideways. Move the cursor towards left to reduce the value, or towards right to increase the value. Release the mouse button when the requested value is shown in the button. For more information, see: Blend Mode function, page 116 Related tasks Enhancing the strongest echoes, page 34 Related functions Blend Mode function, page 116 Number of Surfaces function, page 120 Number of Surfaces function The Number of Surfaces function allows you to change the quantity of isosurfaces to use in the TD50 presentation. How to open This function is opened from the Setup menu. Description The 3D presentation provided by TD50 is created using isosurfaces. Each isosurface is like a "sheet of paper", where the data has identical values. By increasing the number of surfaces, the image detail will be improved. In order to use isosurfaces, you must select which data to use. For the TD50, these data are the echo data provided by the source systems. The echoes from each MS70 transmission ("ping") are defined in three dimensions. From echo sounders, the data are defined in two dimensions, but since they are presented over time, this adds the third dimension. The isosurfaces are then defined using the minimum and maximum echo levels combined with the requested number of surface. If you use only one isosurface, it will present the Minimum Level (SV Min) value. An increasing number of isosurfaces requires more resources from the Processor Unit, especially from the graphic adapter /B

121 Functions and dialog boxes Example Set Minimum Level to -60 db, and Maximum Level to -40 db. This leaves a 20 db "visual space". If you set Number of Surfaces to three, the TD50 will create isosurfaces for -60 db, -50 db and -40 db. The TD50 will process the echo data, and calculate where the surfaces shall be drawn. To change the setting, move the cursor to either side of the button. Select [ ] on the left side to decrease the value, or select [+] on the right side to increase. You can also change the value by selecting - and holding - the middle of the button, and move the cursor sideways. Move the cursor towards left to reduce the value, or towards right to increase the value. Release the mouse button when the requested value is shown in the button. Tip If you wish to apply the new setting to all current beam groups, select Apply to all. If you wish to apply the new setting to all beam groups from the active source system, select Apply to source. In this context, the phrase active source system is used to identify the source system that provides the currently active beam group. Related tasks Increasing the level of detail in the presentation, page 36 Related functions Blend Mode function, page 116 Blend Factor function, page 119 Connections dialog box The Connections dialog box lists all the source systems (sonars and/or echo sounders) available on the network. You can choose which source system you wish to connect to, or disconnect from. If no systems are listed, you can initiate a search. How to open This dialog box is opened from the Setup menu. When the TD50 program starts, the Connections dialog box is automatically opened. If the Connections dialog box does not open, double-click Connections on the top bar /B 121

122 Simrad TD50 Reference Manual Description The Connections dialog box allows you to connect the TD50 to multiple source systems. All source systems on the network are automatically listed. If the requested source system is not listed, select Search. To fetch echo data from a source system, select its name on the list, and select Connect. A successful connection is confirmed by a small dialog box that shows the connection progress. If information from a specific source system is no longer required, select its name on the list, and select Disconnect. In this context, the phrase source system is used to identify the external application (product, program or device) that transmits information to the TD50. Tip Hold the mouse pointer over the Connections icon on the top bar to extract additional information about the connection with the source systems. The small tooltip provides information about the connection, as well as the data traffic received from the source system. Each source system provides the echo data in beams, and the Advanced Settings dialog box permits you to change the sampling rate for the individual source applications. Related tasks Connecting to a source system, page 21 Disconnecting from a source system, page /B

123 Functions and dialog boxes Related topics Connections indicator, page 70 Related dialog boxes Advanced Settings dialog box, page 123 Restore Default Settings dialog box Sometimes it may be useful to reset the TD50 to work with a set of known user settings. A set of "factory settings" is provided for this purpose. How to open This dialog box is opened from the Setup menu. Description These settings are the default values provided with the Simrad TD50. The settings may be put to use if you are uncertain of which values to use. They offer "best practice" settings for typical use. The factory settings cannot be altered. When you wish to apply the factory settings, a small dialog box will appear to request confirmation. Note All current settings are lost when the default factory settings are applied. There is no "undo". Advanced Settings dialog box The Advanced Settings dialog box offers settings that are not required during daily use of the TD50 How to open This dialog box is opened from the Setup menu /B 123

124 Simrad TD50 Reference Manual Description The parameters provided by the Advanced Settings dialog box allows you to control the message rate. You can also adjust the minimum distance from the virtual camera to the plane. Each source system provides the echo data in beams, and the Advanced Settings dialog box permits you to change the sampling rate for the individual source applications. Details Connection to source system View planes The TD50 will generate messages if your connection to a source system is lost. Use these settings to define how long you can accept a loss of data before an error or a warning message is issued. In this context, the phrase source system is used to identify the external application (product, program or device) that transmits information to the TD50. This setting allows you to control how near or far you can place the virtual "camera" in relation to the echo presentation. Information that are located closer to the echoes than the distance you specify are removed. You may find this setting useful when you need to improve the colour representation of the echo data. Number of samples per beam from source system Each source system provides the echo data in beams. The number of beams from each system depends on the system properties. As an example, the Simrad ME70 uses up to 45 beams, while a split beam echo sounder has three or four. The Simrad MS70 operates with a total of 500 beams to create the grid. When the TD50 imports data, each beam is sampled, and you are permitted to control how many samples to use. A large number of samples will provide better quality and higher accuracy in the TD50 presentation, but it will also increase the processing resources. Related dialog boxes Connections dialog box, page /B