Operator manual. Simrad MS70 Scientific multibeam sonar. (CD016018B)

Transcription

1 Operator manual Simrad MS70 Scientific multibeam sonar (CD016018B) TECHNOLOGY FOR SUSTAINABLE FISHERIES

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3 Simrad MS70 Operator Manual Software release This document explains how to operate the MS70 Scientific multibeam sonar in a safe and efficient manner to obtain the best possible scientific results /C 20 June 2007

4 Document history Document number: / ISBN-10: / ISBN-13: Rev.A January 2006 First version. Rev.B December 2006 Released for software version Rev.C 20 June 2007 Revised. No major changes to text and illustrations. Parameter references chapter reorganised. TRU On/Off dialogue explained. Copyright 2007 Kongsberg Maritime AS. 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. 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. 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. The user must be familiar with the contents of the appropriate manuals before attempting to operate or work on the equipment. Simrad disclaims any responsibility for damage or injury caused by improper installation, use or maintenance of the equipment. Support If you require maintenance on your Simrad equipment, contact your local dealer. You can also contact Simrad using the following address:simrad.support@simrad.com. Consult our web site for a list of our dealers and distributors, as well as additional information about other Simrad products. Simrad Kongsberg Maritime AS Strandpromenaden 50 P.O.Box 111 N-3191 Horten, Norway Telephone: Telefax: simrad.sales@simrad.com

5 Operator Manual Table of contents INTRODUCTION... 7 Functional description...8 System description...9 MS70 Operator Station... 9 MS70 Transceiver Unit... 9 MS70 Power Supply Unit MS70 Transducer Array Simplified system diagram GETTING STARTED How to switch power on and off...14 Power on procedure Restart procedure Power off procedure How to use the menu and command buttons...16 Echo presentation and menu Temporary menu Menu structure Command buttons How to select beam mode...18 How to select operational mode...19 How to select ping mode...20 How to select transmission mode...21 DISPLAY VIEWS Display organisation...24 Title bar...25 Title bar: Button field Title bar: Information field Title bar: Logo field Menu system...27 Windows and views...28 Horizontal Section view Horizontal Zoom view Vertical Section view Vertical Zoom view Echogram view Colour Scale view Replay bar...35 OPERATIONAL PROCEDURES /C 3

6 Simrad MS70 How to access on-line help...37 How to select replay file...37 How to record raw data...38 How to handle system messages...39 How to run the BITE tests...39 How to calibrate the system...41 How to recover from a crash...42 How to adjust date and time...42 How to measure noise level...42 Basic guidelines for noise measurements Noise measuring procedure Noise measurement evaluation How to disable a defective transducer element...44 MENU SYSTEM About menus and buttons...48 Main menu...49 Operation menu...49 Display menu...50 Setup menu...50 Active menu...51 Extras menu...51 PARAMETER REFERENCES Alphabetical list of dialogues and command buttons...53 Dialogues and command buttons...55 About Beam Mode Beam Mode Administration BITE Calibration Colour Scale Create Marker Delete Marker Display Bearing Display Tilt Echo Colours Echogram EK500 Datagram Environment Expansion File Output Gain /C

7 Operator Manual Horizontal Axis Install Instrument Offsets LAN Port Setup Marker Information Maximize Window Messages Mode Motion Motion Compensation Navigation New Beam Mode No Of Colours Operation Palette Ping Ping Interval Ping Mode Port Management Port Monitor PP Filter Range Raytrace Record Remoting Replay School Volume Selected Marker Serial Port Setup Sound Velocity Port Synchronization Synchronize Target Tracking Tooltip Transceiver Selection TRU On/Off Tx Mode Tx Power User Setting Vessel Distance View Beam Mode Zoom Range Zoom Start command /C 5

8 Simrad MS70 CALIBRATION UTILITY Getting started Procedure summary Calibration views Views Selected Beam view Beam List view Beam mode view Numerical view Reports Menu system Parameter references About dialogue Gain Adjustment Plot Replay XML Roll Save As Setup Show Reports Single Target Detection Start/Stop TS Hits command CONCEPT DESCRIPTIONS Array weighting concept Beam mode concept Frequency distribution concept Pulse duration concept Size of stored raw data /C

9 Introduction INTRODUCTION The purpose of this operator manual is to describe how to use the MS70 Scientific multibeam sonar system in a safe and efficient manner. This manual complies to software version Note Windows 2000, XP and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. Topics Functional description on page 8 System description on page 9 Simplified system diagram on page /C 7

10 Simrad MS70 Functional description TheSimradMS70isaScientific multibeam sonar system. It is designed for fishery research applications, and incorporates the following primary features: Transceiver operation control Sensor input control Information display Data output and record control Replay of previously recorded data Remote control and data subscription Calibration utility Figure 1 Operational principle TheSimradMS70Scientific multibeam sonar transducer is designed to be mounted on a drop keel. From this position, it will look horizontally athwartship, and provide a matrix of beams. This configuration allows for characterization and volume estimation of a school of fish using a single transmission /C

11 Introduction System description Schools of fish can be tracked, followed and studied using multiple transmissions. The MS70 also enables detection and characterization of schools close to surface. The MS70 provides an acoustic matrix of 500 beams (25 horizontal and 20 vertical). This enables the MS70 to provide instantaneous 3D volume data. Where other systems need multiple pings to provide 3D volume data, the MS70 can provide this using a single ping. This allows the MS70 to provide more accurate data. For example, a school of fish can change its structure several times during the time other systems need to cover the school. Multiple consecutive pings enable the MS70 to provide true 4D data, where time is the fourth dimension. This allows for improved characterization of school structures that are changing over time. TheSimradMS70Scientific multibeam sonar comprises the following main units: Operator Station Transceiver Unit Power Supply Units (3 ea) Transducer Array MS70 Operator Station The MS70 Operator Station is a high performance computer equipped with a colour display. The Operator Station communicates with the Transceiver Unit by means of an Ethernet link. The software on the Operator Station provides you with the following main functionality: Operational control of the Simrad MS70 Scientific multibeam sonar Communication with peripheral sensors and optional post-processing system(s) Sonar presentation Menu system Context sensitive on-line help The Operator Station runs on a commercial Microsoft Windows XP operating system. MS70 Transceiver Unit The MS70 Transceiver Unit is housed in a 19 instrument rack. In order to reduce the loss in the transducer cables, the transceiver is physically located as close as possible to the transducer array /C 9

12 Simrad MS70 The transceiver performs the signal processing and digital beam forming of the transmitter and receiver channels. The main components in the transceiver are: 3 ea TRXU Transceiver subracks 6 ea TRC Beamforming computers 1 ea Ethernet switch MS70 Power Supply Unit Each MS70 Power Supply Unit provides operational and transmission power to one of the three transceiver racks in the Transceiver Unit. External analogue power supplies have been chosen to ensure minimum electric noise. In order to reduce the voltage drop in the power cables, these must be kept as short as possible. MS70 Transducer Array The MS70 Transducer Array is plane, and consists of a ceramic-polymer composite matrix. The matching transformer for each transducer element is located in the transducer, this allows a low impedance connection to the Transceiver Unit. The array is connected to the rear side of the three transceiver racks in the Transceiver Unit using 25 cables /C

13 Introduction Simplified system diagram Asimplified system diagram is shown below. Figure 2 Simplified system diagram B TRXU0 PSU0 (A) Operator Station (B) Transceiver Unit TRXUn are the three transceiver racks ES is the Ethernet switch TRCn are the six beamforming computers (C) Power Supply Units (D) Transducer Array TRXU1 TRXU2 ES TRC0 TRC1 TRC2 TRC3 TRC4 TRC5 PSU1 PSU A 5 C D (CD016020C) The main interfaces are provided by: (1) Ethernet cable between the MS70 Transceiver Unit and the MS70 Operator Station (2) Ethernet cable between the MS70 Operator Station and ship s local area network (3) Ethernet cable to external data logger (optional) (4) Serial line communication with Motion Reference sensor (5) Serial line communication with external sensors (Global positioning system, Course gyro and Sound velocity sensor) /C 11

14 Simrad MS70 The 25 cables from the MS70 Transducer Array (D) are connected to the three transceiver shelves (TRXUn) in the MS70 Transceiver Unit (B). An ethernet switch (ES) controlling two local area networks within the transceiver distribute the processing tasks between the six beamforming computers (TRCn). The MS70 Operator Station is connected to these networks by means of an ethernet cable (1) /C

15 Getting started GETTING STARTED This section contains an brief overview of the basic system operation. If you are a first time user, we recommend that you read through this chapter while operating the MS70 Scientific multibeam sonar so that you can familiarize yourself with the menus, dialogues and display presentations. Topics How to switch power on and off on page 14 How to use the menu and command buttons on page 16 How to select beam mode on page 18 How to select operational mode on page 19 How to select ping mode on page 20 How to select transmission mode on page /C 13

16 Simrad MS70 How to switch power on and off Observe the following procedures to switch the Simrad MS70 on and off. TRU On/Off on page 148 How to run the BITE tests on page 39 Power on procedure 1 Perform the following preparations: Ensure that the ship s mains is connected to the Transceiver Unit. Ensure that all the circuit breakers in the Transceiver Unit are engaged. Ensure that the ventilation fans in the Transceiver Unit are operational. 2 Switch on the Operator Station computer, and allow it to boot up. 3 Click the MS70 desktop icon to start the operator station application. 4 Open the Setup menu in the MS70 application, and click the TRU On/Off button. 5 Observe that the TRU StartUp dialogue opens. 6 Click the Start button in the dialogue. 7 Allow the transceiver to start, and observe the status reported by the dialogue. 8 Run the BITE test to verify that the system is operational. Note If the ambient temperature in the sonar room is low, the system may need time to warm up. If this is the case, leave the system idle for approximately 30 minutes, and then perform the Restart procedure. Restart procedure These procedures are used if you need to restart the system in case of a transceiver error. 1 Open the Setup menu in the MS70 application, and click the TRU On/Off button. 2 Observe that the TRU StartUp dialogue opens. 3 Click the Restart button in the dialogue /C

17 Getting started 4 Allow the Transceiver Unit to start, and observe the status reported by the dialogue. 5 Run the BITE test to verify that the system is operational. If the circuit breakers in the Transceiver Unit have tripped, the TRC beamforming computers may fail to boot. This may happen if the remote wake-up control of the computers has lost synchronisation. To resolve this, observe the following procedure. 1 Open the front door on the Transceiver Unit, and locate the six TRC beamforming computers. 2 Press the Power On/Off button on the TRC computer s front panel. 3 Observe that the blue indicator lamp is lit. 4 Open the Setup menu in the MS70 application, and click the TRU On/Off button. 5 Observe that the TRU StartUp dialogue opens. 6 Click the Restart button in the dialogue. 7 Allow the Transceiver Unit to start, and observe the status reported by the dialogue. 8 Run the BITE test to verify that the system is operational. Power off procedure 1 Open the Setup menu in the MS70 application, and click the TRU On/Off button. 2 Observe that the TRU StartUp dialogue opens. 3 Click the Shutdown button in the dialogue. 4 Allow the transceiver to shut down, and observe the status reported by the dialogue. 5 Close the Operator Station application. 6 Shut down the Operator Station, and switch it off. Note If the MS70 will remain unused for a longer period of time, disengage all the circuit breakers in the Transceiver Unit, and check that the ventilation fans are stopped. The will prevent dust from entering the cabinet /C 15

18 Simrad MS70 How to use the menu and command buttons Observe this brief procedure to familiarize yourself with the basic operations with echo presentations and menu operations. Echo presentation and menu 1 Once the sonar system is up and running, observe the layout of the display presentation: On the right side, observe the menu system. On the left side, observe the echo presentations. 2 On the top of menu, on the far right hand side, click the Menu button. 3 On the display, observe that the menu disappears. 4 On the top of menu, on the far right hand side, click the Menu button one more time, and observe that the menu reappears. When the menu is removed the echo presentation is extended to cover the entire display. Temporary menu 1 On the top of menu, on the far right hand side, press the Menu button to remove the menu. 2 On the display, observe that the menu disappears. 3 Move the cursor over to the left side of the display. 4 Observe that the menu reappears on the left hand side, and that the remaining echo presentation area is not re-scaled. 5 Move the cursor towards the right side of the display again. Observe that the menu disappears from the left side, and temporarily reappears on the right hand side. 6 On the top of menu, on the far right hand side, press the Menu button one more time, and observe that the menu is shown permanently on the right hand side /C

19 Getting started Menu structure The menu on the right hand side of the display contains several different commands buttons. The following elements are in use on the menu: Main menu: This is the upper rectangle of the menu. It holds the six most common settings; users, beam mode selection, range and gain. Sub-menu selector: At the bottom of the main menu, a horizontal line provides five icons to select one of the sub-menus. From left, the following sub-menus can be chosen: Operation, Display, Setup, Active and Extras. Sub-menu: The sub-menus are displayed below the main menu, but only when activated by the icon. Each sub-menu holds a number of command buttons, and those commands that are not applicable for the current mode or operation are not available. Command buttons Each menu contains several command buttons. Each button shows both the function and the current parameter. The majority of the buttons in each menu field have three functions: You can select a lower parameter value. You can select a higher parameter value. You can open the applicable context area. Note that the command buttons on the main menu have a slightly different appearance than those on the sub-menus. Button type 1 This button allows you to increase and decrease a parameter value directly by clicking the and + characters. When you click the centre of the button, a context area opens. 1 Click the left side of the button (A). This will decrease the value of the parameter. 2 Click the right side of the button (B). This will increase the value of the parameter. 3 Click the centre of the command button (C) to open the context area. 4 In the context area, enter the parameter value from the keyboard /C 17

20 Simrad MS70 Button type 2 This button allows you to enable and disable a parameter value directly by clicking the rectangle and circle characters. When you click the centre of the button, a context area opens to provide the same choices and/or access to separate dialogue boxes. 1 Click the left side of the button to switch the function off. 2 Click the right side of the button to switch the function on. 3 Click the centre of the command button to open the context area. 4 In the context area, click to choose the parameter setting. 5 If applicable, click to open relevant dialogue boxes. Button type 3 This button only provides a context area to choose the parameter. The small menu provided in the context area is referred to as a context menu. 1 Click the centre of the command button to open the context area. 2 In the context area, click to choose the parameter setting. 3 If applicable, click to open relevant dialogue boxes. Button type 4 This button allows you to open a dialogue box. No context area is provided. 1 Click the button to open the relevant dialogue box. How to select beam mode The MS70 allows you to create and edit beam modes. Each beam mode contains specific parameters that define the properties of the mode; number of beam sectors, mean characteristics, frequencies etc. Observe the following procedures to select beam mode on the MS70. 1 Observe the Beam Mode button at the top of the main menu /C

21 Getting started 2 Click one of the numbers to select one of the four most recent beam modes. 3 Click the centre button to select a new beam mode from the context menu. To create and edit beam modes, see the Beam Mode Administration dialogue. Beam Mode Administration on page 63 Beam mode concept on page 184 How to select operational mode The MS70 allows you to choose between the three operational modes: Inactive: The MS70 is paused. Neither transmission nor reception takes place. Normal: The MS70 operates normally. Transmission and reception take place. Replay: The MS70 will be paused. Neither transmission nor reception takes place. However, you are able to play back prerecorded data files. Observe the following procedure. 1 Click the circular left icon at the bottom of the main menu to open the Operation menu. 2 Click the Operation command. 3 Select Normal mode on the context menu /C 19

22 Simrad MS70 Operation menu on page 49 Operation on page 118 How to select ping mode The MS70 allows you to disable or enable pinging by means of the Ping command on the Operation menu. When pinging is enabled, you can select from three different modes: Single step: The MS70 will transmit a ping whenever you press the button on the right hand side of the Ping button. Interval: The MS70 will ping at regular intervals. The interval is defined by means of the Ping interval command. Maximum: The MS70 will ping with maximum rate defined by the current depth range. Observe the following procedure to start pinging and to select ping mode. 1 Click the circular left icon at the bottom of the main menu to open the Operation menu. 2 Click the Ping command. 3 Select On on the context menu. 4 Click the Ping Mode command. 5 Select Maximum mode on the context menu. Operation menu on page /C

23 Getting started Operation on page 118 How to select transmission mode Observe the following procedure to set up transmit power and mode. About transmission modes The MS70 allows you to disable or enable pinging by means of the Ping command on the Operation menu. It will also allow you to select active or passive transmission mode by means of the Tx Mode command on the same menu. When pinging is enabled, you can select between two different transmission (Tx) modes: 1 Passive: The MS70 will not transmit. If the pinging has been enabled (Ping set to On) the system will however listen (receive echo data) in the same manner as during normal operation. You can use this mode to detect and investigate background noise. If the pinging has been disabled (Ping set to Off) the system will neither transmit nor receive. 2 Active: The MS70 will transmit energy into the water (ping). If the pinging has been enabled (Ping set to On) the system will perform its normal operation. If the pinging has been disabled (Ping set to Off) the system will neither transmit nor receive. Whenever active transmission takes place, you can adjust the power output by means of the Tx Power command on the Operation menu. Procedure 1 Click the circular left icon at the bottom of the main menu to open the Operation menu. 2 Click the Tx Mode command. 3 Select Active on the context menu. 4 Click the Tx Power command /C 21

24 Simrad MS70 5 Select Max on the context menu. Tx Mode on page 154 Tx Power on page /C

25 Display views DISPLAY VIEWS This chapter provides a brief overview of the information displayed by the Simrad MS70 Scientific multibeam sonar, and how it is organised. Topics Display organisation on page 24 Title bar on page 25 Menu system on page 27 Windows and views on page 28 Replay bar on page /C 23

26 Simrad MS70 Display organisation The MS70 display is organised as follows. Title bar: Located horizontally across the top of the display Replay bar: Located horizontally across the top of the display, below the title bar, but only during replay Menu: Located vertically on the right side of the display. Sonar windows: Fills the remaining space on the display. Figure 3 MS70 Display presentation, example /C

27 Display views Title bar The MS70 Title bar is located on the top of the display, and it is stretched from the far left to the far right side. The title bar is split into three fields: Button field Information field Logo field Title bar: Button field The buttons (from left towards right) provide the following functions: (A) Close MS70 software. (B) Minimize MS70 software window (identical to the Windows function). (C) Re-size MS70 software window (identical to the Windows function). (D) Opens on-line help (on start page). (E) Opens Messages dialogue, flashes when a warning or error message is present. (F) Starts and stops recording, red colour indicates that recording is active. How to access on-line help on page 37 How to handle system messages on page 39 How to record raw data on page 38 Title bar: Information field The information provided (from left towards right) is: Current date Current time Current geographical position (longitude and latitude) Current vessel heading Current vessel speed /C 25

28 Simrad MS70 The prefix R on the left side indicates that a replay is in progress, and that the information shown reflects the date and time of the original ping. The prefix P is used during real-time operations, while the absence of a prefix indicates that the system is inactive. How to adjust date and time on page 42 Title bar: Logo field The buttons (from left towards right) provide the following functions: Simrad logo and product name (MS70). Click the right mouse button on the Simrad logo to reveal the current MS70 software versionintheabout dialogue. Menu button. Click once on the button to hide the menu, and one more time to show it again. When the menu is hidden, it will temporarily be shown on the left and right hand side of the display if you move the cursor to that position. About on page /C

29 Display views Menu system The MS70 menu is located at the right side of the display. Options shown with dark colours are unavailable in the present configuration or operational mode. A detailed breakdown of the commands available from the main menu is given in the Menu structure chapter. See How to use the menu and command buttons on page 16. About menus and buttons on page 48 Main menu on page 49 Operation menu on page 49 Display menu on page 50 Setup menu on page 50 Active menu on page 51 Extras menu on page /C 27

30 Simrad MS70 Windows and views The MS70 Sonar window is the main information bearer on the display. The sonar window contains six views. Topics Horizontal Section view on page 29 Horizontal Zoom view on page 30 Vertical Section view on page 31 Vertical Zoom view on page 32 Echogram view on page 33 Colour Scale view on page /C

31 Display views Horizontal Section view The Horizontal Section view shows the sonar beams from the top. B A C (CD016015A) The presentation shows the current horizontal sector as defined by the chosen display tilt. The view displays all the 25 beams in the horizontal sector. The vertical line (A) in the presentation is the display bearing for the Vertical section and Vertical zoom views, and you can alter its angle by means of the Display bearing command on the main menu. The rectangular field (B) sets the current limits of the horizontal zoom. You can alter its size and shape by clicking on the borders and moving them. The information in the lower left side of the view (C) states the current frequency and tilt for the displayed Horizontal section. Echogram on page 78 Colour Scale on page 71 Tooltip on page /C 29

32 Simrad MS70 Horizontal Zoom view The Horizontal Zoom view shows an excerpt of the horizontal section magnified in a B-scan presentation. The zoomed area is identified - and can be manually controlled - in the horizontal section. You can also use the Zoom start and Zoom range parameters to control the area. Note that whenever target or position tracking is enabled, the zoomed area will automatically follow the target/position. Colour Scale on page 71 Tooltip on page 146 Zoom Range on page 159 Zoom Start command on page /C

33 Display views Vertical Section view The Vertical Section view shows the sonar beams from the side. A B C (CD016016A) The presentation shows the current vertical section as defined by the chosen display bearing. The view present one beam from each of the active horizontal sectors. The horizontal line (A) in the presentation is the display tilt for the Horizontal Section and Horizontal Zoom views, and you can alter its angle by means of the Display tilt command on the main menu. The rectangular field (B) sets the current limits of the vertical zoom. You can alter its size and shape by clicking on the borders and moving them. The information in the lower left side of the view (C) states the current frequency and tilt for the displayed Vertical Section. Echogram on page 78 Colour Scale on page 71 Tooltip on page /C 31

34 Simrad MS70 Vertical Zoom view The Vertical Zoom view shows an excerpt of the vertical section magnified in a B-scan presentation. The zoomed area is identified - and can be manually controlled - in the horizontal section. You can also use the Zoom start and Zoom range parameters to control the area. Note that whenever target or position tracking is enabled, the zoomed area will automatically follow the target/position. Colour Scale on page 71 Tooltip on page /C

35 Display views Echogram view The Echogram view contains information about the acoustical values. The settings made in the Echogram dialogue specifies displayed information type, while the settings in the Colour Scale is used to present the information. Figure 4 Echogram view example The echogram presents the beam defined by the current display bearing and display tilt. The presentation only shows range, and not depth. If you place the cursor inside the view, a small yellow label will appear to give you a detailed read-out of certain information. The Tooltip dialogue defines which information that will be shown. Colour Scale on page 71 Echogram on page 78 Tooltip on page /C 33

36 Simrad MS70 Colour Scale view The Colour Scale view is located next to the Echogram view. The view visualizes the mapping of echo strength into one out of 12 colours, light blue for weak signals and dark brown for strong signals. Basically, each discrete colour represents a 3 db range of echo signal strength implying that the next colour is selected every time the echo strength doubles. However, as the number of colours can differ, and dedicated colour schemes can be used, this is subject to change with specific settings. By changing the Gain 20Log (or Gain 40Log), the limits of the colour scale are changed. Figure 5 Colour Scale view example A high numeric TVG value (= high gain) displays weak echo signals properly while the stronger signals saturate into dark brown colour. A low numeric value displays strong echo signals properly. Weak signals below the lower limit of the colour scale are not displayed (the display background colour is used). If you place the cursor inside the view, a small yellow label will appear to give you a detailed read-out of certain information. The Tooltip dialogue defines which information that will be shown. Colour Scale on page 71 Tooltip on page /C

37 Display views Replay bar The MS70 Replay bar is located immediately below the Title bar, but only when the Replay mode has been enabled. Figure 6 Replay bar The Replay bar holds the following information: (A) Stop button. Click this button to stop the playback. You will not exit the mode. (B) Play/Pause button. Click this button to play or pause the playback. (C) Current playback file. Click the folder icon or the file name to open the Replay dialogue. (D) Playback controller. This slider moves towards right during playback. You can click on the slider and move it back and forth to fast rewind or fast forward the playback. (E) Playback progress bar. Replay on page /C 35

38 Simrad MS70 OPERATIONAL PROCEDURES This chapter contains a number of specific procedures to be used with the MS70 Scientific multibeam sonar. Getting started How to switch power on and off on page 14 How to select beam mode on page 18 How to select operational mode on page 19 How to select ping mode on page 20 Basic operation How to access on-line help on page 37 How to select replay file on page 37 How to record raw data on page 38 Test and maintenance How to handle system messages on page 39 How to run the BITE tests on page 39 How to calibrate the system on page 41 How to recover from a crash on page 42 How to adjust date and time on page 42 How to measure noise level on page 42 How to disable a defective transducer element on page /C

39 Operational procedures How to access on-line help The MS70 application is provided with a context sensitive on-line help system. It is based on standard XML files converted to HTML and organised in a single CHM file. This CHM file will also run on any other computer provided that the computer runs a Microsoft operating system. The content of the on-line help is identical to thems70 Operator Manual. Procedure 1 You can open the on-line help by clicking any Help button in a dialogue box. The description of the related dialogue box will appear in the help window. 2 You can open the on-line help by clicking the? on the title bar. This will open the on-line help file on its start page. How to select replay file 3 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. A replay file is a previously recorded raw data file made during a MS70 survey. It is normally stored on the Operator Station s hard-disk. Raw data are mainly recorded and replayed to perform further investigation and post-processing on the data. However, replay files are also useful when you wish to operate the MS70 for educational purposes. Procedure 1 Click the circular icon at the bottom of the main menu to open the Operation menu. 2 Click the Operation command button to open the context area. 3 Select Replay on the context menu /C 37

40 Simrad MS70 4 Observe that the Replay dialogue opens. It may contain a list of replay files. If a replay file has already been opened by the MS70, the Replay dialogue will not open. If this is the case, click the current replay file name in the Replay bar on the top of the screen to open the dialogue. 5 If you wish to add additional files to the list, click the Add button. 6 If you wish to remove a file from the list, select it and click the Remove button. 7 Select the raw file you wish to replay. 8 If you wish the replay file to run in a loop, click the Loop check box. 9 Click Ok. 10 Click the Play button on the Replay bar. Replay bar on page 35 Operation on page 118 Operation menu on page 49 How to record raw data Observe the following procedure to record raw data. 1 From the Operation menu, click the Record button. 2 Click Record file to select or change the output directory for the logged data. 3 Start and stop the recording by clicking On or Off. Record on page /C

41 Operational procedures How to handle system messages A system message has been created when the triangle in the top menu change colour. The colour of the triangle indicates the most serious message type that is currently issued. Procedure 1 Click the Message button to open the Message dialogue box. 2 Observe that the Message dialogue contains one tab for each message type. 3 Select the appropriate tab. Messages can be acknowledged or deleted individually, or all messages displayed on a tab can be deleted. All messages are stored on file. In case of a system crash, alogfileis created and tagged with current time. This file is useful if you wish to report the error to Simrad. Note If a serious error message occurs, this dialogue will automatically be shown. Messages on page 107 How to run the BITE tests By means of the BITE utility, you can easily determine if the system has 800 operational elements. Simulations with up to four defect elements show no significant degradation of performance. Initialisation 1 Open the Setup menu. 2 Click the Beam Mode Administration button to open the dialogue box. 3 Click once to select the Example 1 sector beam mode (provided with the MS70), and then click OK to select it. 4 Open the Operation menu, and select Normal operation /C 39

42 Simrad MS70 5 On the Main menu, set Range to 50 meters. 6 On the Operation menu, set TX Power to Maximum. 7 On the Operation menu, set Ping mode to Maximum. 8 On the Operation menu, set Ping to On. Receiver test 1 On the Setup menu, select BITE. 2 In the BITE dialogue, select the Matrix view. 3 In the Mode field, click to select Element amplitude. 4 In the Start averaging field, enter In the Averaging range field, enter In the Scale field, select Automatic. 7 In the Element size in pixel field set pixel width and height to In the Transmit pulse field, click to select Current. 9 Observe the average of 100 samples starting from sample These samples are all inside the receive period of the ping. If single elements, or groups of elements, report signal levels with abnormal deviation from it s neighbour elements, this indicates malfunctioning receiver hardware. If the transmit test for the elements in question works well this indicates a bad cable connection to the transducer. This may be due to any of the following reasons: Bent or broken pins between the transceiver backplane and the TRX32 or RIO circuit boards for the element in question Bent or broken pins in the cable connector into the RIO circuit board for the applicable element Damaged cable A defective transducer element /C

43 Operational procedures Transmitter test 1 In the BITE dialogue, select the Matrix view. 2 Observe the average of 100 samples starting from sample 20. These samples are all inside the transmit pulse and the weighting of the elements during transmission will be visible. If a single element, or groups of elements (TRX32 boards), reports signal levels with abnormal deviation from it s neighbour elements, you may have a failure. If the receiver test of the relevant elements performs well, you probably have malfunctioning transmitter electronics. BITE on page 65 How to calibrate the system The MS70 application provides a built-in calibration feature. Preparations 1 Open the Setup menu. 2 Click the Beam Mode Administration button to open the dialogue box. 3 In the left text field, click once on the beam mode you wish to calibrate. 4 Click the Edit button to open the edit dialogue box. 5 Select the Sector tab. 6 Click All beams to be split beams, andthenok. 7 Once back in the Beam Mode Administration dialogue, click OK to activate the chosen beam mode. All beams will from now be processed as split beams. This state will remain until system is restarted, or the function is switched off again. During split beam processing, the PRF of the system will be lower than during normal operation. 8 Open the Setup menu. 9 Click the Calibration buttontostartthecalibration utility. For detailed description of the Calibration utility, refer to the Calibration chapter in this manual /C 41

44 Simrad MS70 The results from the calibration will be used until next calibration is performed for the selected beam mode, or a different calibration is selected. Calibration utility on page 161 How to recover from a crash This procedure explains how to recover the MS70 operating system if it has terminated in an abnormal manner. By default, the Operator Station will start with the user settings that were active when it was switched off. However, if the operator station has crashed these user settings may be corrupted. Procedure 1 Power down the system. 2 Switch power on, and allow the computer to start. 3 Observe that alternative user settings are provided by the start-up sequence. 4 Select the Factory default setting, and allow the system to startupwiththose. How to adjust date and time The MS70 operating system clock is normally synchronised to a clock server on the ship s local area network (LAN). When this function is set up and enabled, there will be no need to adjust date and time. How to measure noise level Noise measurements are performed to ensure the system performs as expected and to evaluate system installation. Noise measurements are also performed to measure and document how system performance is affected by vessel operation and may be used as a guide when choosing vessel operation parameters for acoustic surveys. This test procedure focuses on measuring the system self noise and vessel noise affecting the system. The procedure does not focus on measuring interference from other acoustic instruments on the system. Topics Basic guidelines for noise measurements on page 43 Noise measuring procedure on page 43 Noise measurement evaluation on page /C

45 Operational procedures Operation on page 118 Operation menu on page 49 Basic guidelines for noise measurements The noise measurements shall take place at least one nautical mile from shore, away from other ship traffic, and with calm sea. The water depth shall be 200 m or more to avoid propeller reflections from the seabed. All other acoustic instrumentation which may affect the measurements shall be turned off during the measurements. The system configuration shall be calibrated prior to the noise measurements. A sound velocity profile shall be taken at the time and location of the noise measurements and archived. Noise levels shall be measured at different vessel speeds, from 0 to maximum speed in steps of 1 or 2 knots. The vessel s course must be kept steady during these measurements. Noise levels shall be measure in both passive and active mode. Raw data files shall be recorded during all measurements and archived. Noise measuring procedure Observe the following procedure. Initial setup 1 Set Operation to Normal. 2 Select the Beam Mode which will be measured. and make sure the appropriate calibration mode is used. 3 Set Tx Power to Maximum. 4 Set Ping Mode to Maximum and switch off all external synchronization. 5 Set Range to 300 m. 6 Set Display Tilt to approximately -20 degrees. 7 Set Display Bearing to -90 degrees. 8 Set Tx Mode to Passive. 9 Open the Extras tab in the menu. 10 Start recording of raw files. Ensure that the recording range is set to 300 m! Test loop 1: Increasing vessel speed 1 Start the test loop with vessel speed 0 knots. 2 Read the Noise estimate from the Extras tab and note down the value /C 43

46 Simrad MS70 3 Increase the vessel speed with 1 or 2 knots and wait until the speed is stable 4 Read the Noise estimate from the Extras tab and note down the value. 5 Repeat these steps until the vessel has reached maximum speed. Test loop 2: Decreasing vessel speed 1 Start the test loop with maximum vessel speed. 2 Disengage the propeller as suddenly as possible to allow the vessel to slow down by itself. 3 For every 1 to 2 knots speed reduction, read the Noise estimate from the Extras tab and note down the value. If the noise decreases quickly towards the same level as at 0 knots when the propeller has been disengaged, this means that the propeller causes the noise. If the noise at decreasing vessel speed is more or less equal to the noise level at increasing speed, the noise is probably caused by water flow or electrical cables, motors or instruments. Noise measurement evaluation When the vessel is stopped and no other acoustic equipment is active the noise estimate should be approximately -145 db or lower. If the noise is substantial and mainly caused by the propeller, the procedure should be repeated with different combinations of pitch and propeller speed if possible to determine the most favourable settings. If the noise estimate increases significantly when switching to Active mode it is likely due to acoustic backscatter from objects in the water. The influence from other acoustic instruments can be evaluated by measuring the noise with and without these other acoustic instruments turned on and comparing the results. In this case the instruments must be synchronized and the procedure shall be modified to allow external synchronization. How to disable a defective transducer element With 800 separate transducer elements in the transducer array, the MS70 offers a considerable redundancy in case single elements fail. However, defective elements should be identified and disabled in order to retain the system s accuracy. If the BITE tests show that individual elements are defective, the following /C

47 Operational procedures procedure is used to set the input amplitudes for these elements to a minimum value. It is especially important to disable elements that are creating noise due to for example oscillating electronics. Note This procedure is special in the sense that some hidden dialogues must be used to obtain this feature. These dialogues are designed for technical support and software debugging, and they are not documented elsewhere in this manual. Procedure 1 Press the Shift key down, and double-click on the Simrad logo in the top right corner of the display. 2 Observe that the Object Inspector dialogue opens. 3 Scroll down the list on the left side of the dialogue, and locate the ParameterServer entry. 4 Double-click the ParameterServer entrytoopen the Parameter browser dialogue. 5 Scroll down the left side of the dialogue, and locate the SMS BeamFormer entry. 6 Clickthe[+]icontoopenit. 7 Scroll down to locate NtrCommunicationManager, and open this as well. 8 Scroll down to locate DisconnectedElements, andclickon this entry to see the corresponding parameters on the right hand side of the dialogue /C 45

48 Simrad MS70 9 In the New value field, write down the complete list of elements to be deactivated. Use the element numbers separated with commas. Note If you are adding new elements to a current list, make sure that you keep both the old and the new elements in the list. The old list will be erased when you update the new values. 10 Click the Update button on the right hand side to activate the new list. 11 Exit the Parameter browser dialogue by clicking the [X] in the top right corner. 12 Exit the Object Inspector dialogue by clicking the [X] in the top right corner /C

49 Menu system MENU SYSTEM The purpose of this operator manual is to describe how to use the MS70 Scientific multibeam sonar system in a safe and efficient manner. Menu navigation employed by MS70 Scientific multibeam sonar is similar to the other Simrad applications which follow the new user interface standards developed by Simrad. The main menu is located at the right side of the screen, and by means of dedicated icons at the bottom of the main menu, you can open the relevant sub-menus. Menu choices shown in dark colours are not available for the current operation or operational mode. The icons providing the sub-menus are (from left) Operation, Display, Setup, Active and Extras. Topics About menus and buttons on page 48 Main menu on page 49 Operation menu on page 49 Display menu on page 50 Setup menu on page 50 Active menu on page 51 Extras menu on page /C 47

50 Simrad MS70 About menus and buttons The operational navigation on the MS70 is designed by means of menus and command buttons. Menu hierarchy The following menus are provided: 1 The Main menu provides the parameters most frequently used during normal operation. 2 The Operation menu provides the functions used to prepare and start system operation. 3 The Display menu is used to control the visual aspects of the system. 4 The Setup menu allows you to control the configuration of the signal processing, as well as installation and maintenance of the system. 5 The Active menu has its content linked to the current active item (view or object). Use it to access special features available for the selected item. 6 The Extras menu is not a menu. It is an information page with numerical data about the currently selected item. For basic information about the menu system, see How to use the menu and command buttons on page 16. Button types Several different button types are used. These are explained in chapter Getting started. SeeHow to use the menu and command buttons on page /C

51 Menu system Main menu The following functions and parameters are available from the Main menu. User Setting on page 156 Mode on page 108 Range on page 129 Gain on page 99 Display Tilt on page 76 Display Bearing on page 75 Operation menu The following functions and parameters are available from the Operation menu. Operation on page 118 Ping on page 120 Ping Mode on page 122 Ping Interval on page 121 Record on page 131 Zoom Start command on page 160 Zoom Range on page 159 Tx Power on page 155 Tx Mode on page 154 View Beam Mode on page /C 49

52 Simrad MS70 Display menu The following functions and parameters are available from the Display menu. Palette on page 119 No Of Colours on page 117 Echo Colours on page 77 Tooltip on page 146 Setup menu The following functions and parameters are available from the Setup menu. Beam Mode Administration on page 63 Calibration on page 70 BITE on page 65 Vessel Distance on page 157 Target Tracking on page 144 School Volume on page 136 Synchronization on page 142 Motion Compensation on page 110 Raytrace on page 130 TRU On/Off on page 148 Install on page /C

53 Menu system Active menu Extras menu The Active menu is populated according to which view or objects you have chosen. In total, the following functions and parameters are available. Colour Scale on page 71 Echogram on page 78 Expansion on page 93 Horizontal Axis on page 100 PP Filter on page 128 Create Marker on page 73 Delete Marker on page 74 Marker Information on page 105 Maximize Window on page 106 Note that the Create Marker command is shaped as four icons allowing you to create the following markers: Target, Position, Marker and Ruler. TheMarker Information is not a command button, but represents data automatically provided whenever a marker has been chosen in one of the views. The last sub-menu is not a menu. It provides a list of numerical data for the selected view /C 51

54 Simrad MS70 PARAMETER REFERENCES This chapter provides reference information about the dialogue boxes, parameters and functions used throughout the MS70 Scientific multibeam sonar. The information is provided in alphabetical order. The phrase menu command is used for all the buttons located in one of the menus. Some of the menu commands are used to access dialogue boxes, while others allow you to perform a parameter setting directly. Topics Alphabetical list of dialogues and command buttons on page 53 Dialogues and command buttons on page /C

55 Parameter references Alphabetical list of dialogues and command buttons This section contains an alphabetical list of all dialogue boxes and menu commands. About on page 56 Beam Mode Administration on page 63 Beam Mode on page 57 BITE on page 65 Calibration on page 70 Colour Scale on page 71 Create Marker on page 73 Delete Marker on page 74 Display Bearing on page 75 Display Tilt on page 76 Echo Colours on page 77 Echogram on page 78 EK500 Datagram on page 83 Environment on page 87 Expansion on page 93 Gain on page 99 Horizontal Axis on page 100 Install on page 101 Instrument Offsets on page 102 LAN Port Setup on page 104 Marker Information on page 105 Maximize Window on page 106 Messages on page 107 Mode on page 108 Motion Compensation on page 110 Motion on page 109 Navigation on page 111 New Beam Mode on page 116 No Of Colours on page 117 Operation on page 118 Palette on page 119 Ping on page /C 53

56 Simrad MS70 Ping Interval on page 121 Ping Mode on page 122 Port Management on page 123 Port Monitor on page 126 PP Filter on page 128 Range on page 129 Raytrace on page 130 Record on page 131 Remoting on page 132 Replay on page 135 School Volume on page 136 Selected Marker on page 139 Serial Port Setup on page 140 Sound Velocity Port on page 141 Synchronization on page 142 Synchronize on page 143 Target Tracking on page 144 Tooltip on page 146 Transceiver Selection on page 147 TRU On/Off on page 148 Tx Mode on page 154 Tx Power on page 155 Vessel Distance on page 157 View Beam Mode on page 158 Zoom Range on page 159 Zoom Start command on page 160 User Setting on page /C

57 Parameter references Dialogues and command buttons All dialogue boxes and command buttons are provided in alphabetical order /C 55

58 Simrad MS70 About The About dialogue box is accessed from the Title bar by right-clicking the logo or product name. The current software version and other related information is provided. Press OK to close the dialogue box. Note that the software version displayed in this dialogue box should match the software version described in this manual. The current software version described here is /C

59 Parameter references Beam Mode This dialogue box is accessed from the View Beam Mode command on the Operation menu, and from the Edit button in the Beam Mode Administration dialogue. Note When the Beam Mode dialogue is accessed from the View Beam Mode command on the Operation menu, you will not be able to do any changes to the beam parameters. In order to change the parameters, you must access the dialogue through the Beam Mode Administration dialogue on the Setup menu. This dialogue is used to edit or view the parameters of the currently chosen beam mode. The beam mode describes the acoustic properties of the system. You can create and maintain several different beam modes, and use these to set up the MS70 for specific survey activities. The Beam Mode dialogue contains the following tabs: Frequency Band tab on page 58 Sector tab on page 59 Calibration tab on page 60 Frequency/Sector Plot tab on page 61 Tx Amplitude Plot tab on page /C 57

60 Simrad MS70 Frequency Band tab The parameters provided by this tab controls the frequencies and pulse shapes of the currently selected beam. Parameters Upper Frequency: Select the upper frequency to be used by the beams in the fan. Lower Frequency: Select the lower frequency to be used by the beams in the fan. Pulse Duration: Select the pulse duration to be used for all the beams. The frequency band and the number of active beams will limit the bandwidth for each beam. This bandwidth will further limit the minimum pulse duration that you may select. For further information, refer to the Pulse duration concept description. Pulse Form: Select pulse duration to be used for all beams. The alternatives are CW (Continuous Wave) and LFM (Linear Frequency Modulated wave). Beam Mode on page 57 Frequency distribution concept on page 184 Pulse duration concept on page /C

61 Parameter references Sector tab This dialogue box controls the number of sectors of the system, and it is used to set up the number of sectors. The system may have 1 to 20 active sectors. Each sector transmits with its unique frequency. For each sector 25 receiver beams are formed. With all sectors active, the sectors cover by default from 0º to -45º tilt. Sector 19 is located at 0º tilt, while sector 0 is located at 0º tilt. Upper Sector: Number of the sector with the most tilt to be active. Lower Sector: Number of the sector with the least tilt to be active. # Sectors: Number of sectors active based on the upper and lower sector selection. Tilt Adjustment All Sectors: All Beams to be Split Beams: For special purposes like calibration, all the receiver beams of the beam mode can be processed like split beams, by this parameter /C 59

62 Simrad MS70 Calibration tab This tab controls which calibration mode that will be used during the operation of the MS70 while in the currently selected beam mode. A beam mode will initially have calculated its nominal performance, and a set of coefficients with 0 db corrections will be established. When you run the Calibration utility, a new entry will be added to the list of calibrations for the currently selected beam mode. The currently active calibration mode is highlighted when you open this tab. If you wish to use another calibration mode, click on it to select it. When you click Apply or close the dialogue, your recently highlighted calibration mode becomes the selected mode. Each calibration mode is accompanied by a description. Beam Mode on page 57 Calibration utility on page /C

63 Parameter references Frequency/Sector Plot tab This plot presents the theoretical opening angle and steering for all receiver beams in the beam mode. Use this plot to verify that the opening angle and steering are as expected, based on the sectors selected. Using the same array weighting for all beams, the difference in sector frequency and steering create different theoretical opening angles. Note that the opening angles are all one-way for the receiver beams. As all beams within a sector have the same frequency, the one- and two-way beam openings will be the same in the Y direction (horizontal direction). As all sectors have different frequency, the one- and two-way beam openings will be different in the X direction (vertical direction). Typically, the two-way beam opening will be one-way beam opening/ /C 61

64 Simrad MS70 Tx Amplitude Plot tab This plot present the theoretical sum of the frequencies (beams) transmitted in the different transmission groups. The plot shows the signal for an imaginary element in the centre of the transducer. Actual signal summation and level will depend on the phases for the different beams, due to beam steering, and the amplitude for each element, due to element weighting /C

65 Parameter references Beam Mode Administration This dialogue is opened from Beam Mode Adm button on the Setup menu. This dialogue box is used to administrate (create, edit and delete) the beam modes defined for the system. The list of defined beam modes is shown. The currently selected mode is highlighted when you open the dialogue. When you close the dialogue box by means of the Ok button, or when you apply changes using the Apply button, the highlighted mode becomes the new selected mode. Each beam mode is accompanied by a mode description. You can enter and edit the descriptive text in the text box on the right hand side. Beam Modes This text field lists the current beam modes. To delete or edit one of them, click the name to select the mode, and then click the Edit or Delete button. Mode description This text field lists the text description provided for the beam mode currently selected in the Beam Modes field. Parameters The functionality is provided by three buttons. Edit: This button opens the Beam Mode dialogue, which allows you to edit the beam mode s current operational parameters. When you edit a calibrated mode you will be asked to ensure that the changes you have made are compatible with the calibration /C 63

66 Simrad MS70 data stored with the configuration. Typical situations where a calibrated mode is changed, is when you turn on or off All beam to be split beams, or before and after performing a calibration. Delete: Click this button to delete the highlighted mode. When you delete a mode you will be asked to verify that you really wish to delete it. If the mode you wish to delete has been calibrated, you will be asked to verify one more time. New: This button creates a new mode dialogue. The New Beam Mode dialogue is provided for you to enter the name. The new mode will be created with a default configuration, and you must edit these parameters using the Edit button. Note The beam mode specifications are stored in XML format on the Operator Station. Do not attempt to rename these files manually, as this will cause problems when the MS70 shall load the file. New Beam Mode on page 116 Beam Mode on page /C

67 Parameter references BITE This dialogue box is accessible from the BITE button on the Setup menu. It is used to initiate the Built-In Test Equipment (BITE) provided by the system. The dialogue provides two tabs: B-Scan tab on page 66 Matrix tab on page 68 How to run the BITE tests on page /C 65

68 Simrad MS70 B-Scan tab This tab allows you to monitor time series of data coming from each of the 800 elements of the system. The start sample and the number of samples to be displayed are adjustable. The purpose of this test is to check the function of the individual transceiver channels in the Transceiver Unit, as well as the elements in the transducer array. Mode Select the operational mode of the BITE system. Two modes are available. None/freeze: Click this option when you have received data, and you wish to freeze the data presentation for a closer study of the results. Element amplitude: Click this option to start the BITE test. Start sample This setting allows you to select the sample you wish to start the test with. Each vertical line shows the signal measured from a single transducer element. Sample 0 is measured when the ping starts, while for example sample 1000 is located at 12 meters range. Use Start sample and Sample range to select the range to display in the dialogue. Sample range This setting allows you to select how many samples you wish to include in the test /C

69 Parameter references Decimation method Sample range is normally selected so that there will not be space to display all measurements in the dialogue. If you need to reduce the number of samples, you can select the decimation method; Single, Average or Peak. Single decimation method means that only the first sample is used, the rest are disregarded. Average decimation method means that the average value of the samples is shown. Peak decimation method means that the strongest sample value is shown. Scale Choose the scale in the presentation window. Automatic: Click this option if you wish the scale in the presentation window to set itself up automatically. Manual: Click this option if you wish to set up the scale manually. If you choose this option, you need to define the upper and lower limits to be used. Scale: Logarithmic or linear scale can be chosen for the presentation. Logarithmic scale is normally used as this gives the best overview of the complete dynamic range. Linear scale enhance differences close to the maximum value. Colour scale: Select the number of colour you wish to use in the presentation. Sample pixel size You must define the width and height of each individual pixel. BITE on page 65 How to run the BITE tests on page /C 67

70 Simrad MS70 Matrix tab This tab allows you to monitor average signal values or signal phases from each of the 800 system elements. The presentation is provided on a 40 x 20 matrix corresponding to the element locations in the transducer array. The purpose of this test is to check the function of the individual transceiver channels in the Transceiver Unit, as well as the elements in the transducer array. Mode Select the operational mode of the BITE system. Three modes are available. None/freeze: Clickthis option when you have received data, and you wish to freeze the data presentation for a closer study of the results. Element amplitude: Click this option to start the BITE test. Element phase: Click this option to start the test to observe element phases /C

71 Parameter references Start averaging This setting allows you to select the firstsampletobepartof the presentation. Averaging range This setting allows you to select the number of samples to be averaged. Scale Choose the scale in the presentation window. Automatic: Click this option if you wish the scale in the presentation window to set itself up automatically. Manual: Click this option if you wish to set up the scale manually. If you choose this option, you need to define the upper and lower limits to be used. Scale: Logarithmic or linear scale can be chosen for the presentation. Logarithmic scale is normally used as this gives the best overview of the complete dynamic range. Linear scale enhance differences close to the maximum value. Colour scale: Select the number of colour you wish to use in the presentation. Element size in pixels You must define the width and height of each individual pixel. Generator In order to run this test, a built-in signal generator is used. You must set up the amplitude and frequency to be used by this generator. By doing this, the generator will create a test signal in parallel with the signal measured on the transducer. Transmit pulse Select Voltage or Current. Voltage is always measured during reception. However, voltage measurements during transmission are not reliable. By default, the system measures current during transmission. BITE on page 65 How to run the BITE tests on page /C 69

72 Simrad MS70 Calibration This command is accessed from the Setup menu. It starts the Calibration utility. Calibration utility on page /C

73 Parameter references Colour Scale This dialogue is opened by clicking the Colour Scale button on the Active menu. Note that this button will only be available when the colour scale has been selected. Note that this button will only be available when the colour scale has been selected, or when the Colour Scale, Echogram, Swath, Single Target Position or Single Target Histogram views are active. The dialogue can also be opened from the short-cut menus in the same views. The purpose of this dialogue box is to change the dynamic range of the colour scale. The total number of colours used in the presentation will be distributed between the minimum and maximum levels identified in this dialogue. Values above maximum level are shown using the "max level" colour, while values below are shown with the background colour. The TVG functions can be either: None 20Log 40Log Parameters Min.level / Max.level: For each level, use the spin box or slider to set the levels. Altering the maximum or minimum levels will automatically adjust the colour step /C 71

74 Simrad MS70 Colour step: Use this setting to define the range in db each colour will cover. Altering the colour step will automatically adjust the maximum level. The colour step is always referred to the 12 colour case. Applytoall: Check this box to make the chosen settings apply to all views. Colour Scale view on page 34 No Of Colours on page 117 Echo Colours on page 77 Gain on page /C

75 Parameter references Create Marker This command is accessed from the Active menu. There are in fact four buttons, each used to create a different marker type. By means of the four icon buttons, you can define a number of markers. Four different marker types are available (icons from left towards right): Target, Position, Marker and Ruler. A Target marker is used to identify a moving object. When enabled, both zoom views will follow the chosen target. A Position marker is used to identify a fixed position, for example a buoy or a transponder on the bottom. A Marker is for general purpose use. A Ruler is used to measure a distance between two locations. Click on the icon button to enable the marker. Observe that the cursor turns into a finger once you move it into one of the valid views. Then click wherever you wish to place the marker. Delete Marker on page 74 Selected Marker on page 139 Marker Information on page /C 73

76 Simrad MS70 Delete Marker This command is accessed from the context menu provided by the Selected Marker button on the Active menu. This command allows you to remove a marker. Click on the marker name, and observe that the marker information is displayed in the Active menu. Click the Delete Marker button. Selected Marker on page 139 Create Marker on page 73 Marker Information on page /C

77 Parameter references Display Bearing This command is accessed from the Main menu. This command allows you to choose which of the vertical beam sectors you wish to display in the Vertical Section view. Vertical Section view on page /C 75

78 Simrad MS70 Display Tilt This command is accessed from the Main menu. It allows you to choose which of the horizontal beam sectors you wish to display in the Horizontal Section view. Horizontal Section view on page /C

79 Parameter references Echo Colours This command is accessed from the Display menu. This command is used to set colour parameters for the echo presentations. A small context menu appears, and allows you to make a selection. You can also scroll through the options by clicking the + and - buttons. The options are: Sonar colours Smooth echo sounder Gray scale BI500 Colours Note The echo colour selection is only available when you have used the No. of Colours command and chosen to use 64 colours. The Smooth echosounder colours are based on the standard 12 colour scale, but additional colours have been added in between. Colour Scale on page 71 No Of Colours on page /C 77

80 Simrad MS70 Echogram This dialogue is opened by clicking the Echogram button on the Active menu. This dialogue box is used to specify what should be displayed in the Echogram view, and how sample data shall be converted to pixel data. The Echogram dialogue contains three tabs: Type tab on page 79 Lines tab on page 80 Pixels tab on page 82 Echogram view on page /C

81 Parameter references Type tab This tab allows you to define the type of echogram and backscatter setting for the presentation in the Echogram view. Reference This parameter is not operational on the MS70 system! The MS70 will always use Surface as reference. Backscatter This setting allows you to select the backscatter value by clicking one of the tick boxes. The following choices are available: Pr: Power(noTVG) Sv: Volume backscatter (20 log TVG) Sp: Scattering point (40 log TVG) TS: Target strength (40 log TVG) Sp & TS: Scattering point and target strength (40 log TVG) Note that the target strength related presentations can only be enabled when split beams are activated. To activate split beams, observe the relevant parameters you can set for the beam mode. Echogram on page 78 Beam Mode on page 57 Echogram view on page /C 79

82 Simrad MS70 Lines tab This tab is used to specify which lines to be displayed in the Echogram view. Horizontal Bottom: The bottom parameters are not used. Trawl: You have two choices: On: Headrope and footrope depths are indicated by two lines in the echogram. Off: The trawl lines are switched off. Scale: Equidistant horizontal scale lines are drawn inside the echogram in the current foreground colour; black during day and white during night. A maximum of 50 scale lines can be drawn. No scale lines are drawn when the scale line count is set to zero. Vertical Ticks: Four options are available: None: Tick marks are switched off. Ping: A short vertical line is drawn in the upper part of the echogram once every specified number of pings. Time: A short vertical line is drawn in the upper part of the echogram once every specified number of seconds. Distance: A short vertical line is drawn in the upper part of the echogram once every specified number of nautical miles /C

83 Parameter references Annotation: ClickText to allow text annotations to be visible in the echogram. If you click Line, the text annotation will be followed by a vertical line for improved visibility. Echogram on page 78 Echogram view on page /C 81

84 Simrad MS70 Pixels tab This tab page is used to specify how sample data are converted to pixel data. Each ping consists a given number of data samples, where the number of samples is set by the current depth range. This number of samples does not necessarily match the number of vertical pixels in the Echogram view. The data samples must therefore be compressed or expanded to fit the number of available pixels. In other echo sounders, this function is handled automatically without allowing the user to control the process. Compression These two options describe the situation when the number of samples is higher than the number of pixels, and multiple samples are compressed into one pixel. Mean: The mean of the samples is used as pixel value. Peak: The peak value of the samples is used as pixel value. Expansion This field describes the situation when the number of samples is lower than the number of pixels, and the sample values are expanded to pixel values. This parameter can also be defined using the Expansion command on the Display menu. Interpolation: Pixel values are interpolated between two sample values. Copy: A sample value is copied into multiple pixel values. Echogram on page 78 Expansion on page 93 Echogram view on page /C

85 Parameter references EK500 Datagram This dialogue box is accessed from Processed data tab on the File Output dialogue box. The File Output dialogue is in turn opened by selecting Record file from the:. Record context menu on the Operation menu, or Data Output context menu on the Setup menu. This dialogue is used to specify which EK500 datagrams to output. Note that changes made in this dialogue will have effects on both Ethernet and file output of EK500 data. The dialogue box contains three tabs: Datagram tab on page 84 Range tab on page 85 Echogram tab on page 86 File Output on page 94 Record on page /C 83

86 Simrad MS70 Datagram tab This tab allows you to select which datagrams to output. For a detailed specification of the datagrams, refer to the Simrad EK500 Operator manual. Sample data Select one or more of Angle, Power, Volume backscatter (Sv) and Target strength (TS). Echo Trace Setup Click this button to specify parameters for the Echo Trace datagram. The button opens the Single Target Detection dialogue. EK500 Datagram on page 83 Range tab on page 85 Echogram tab on page /C

87 Parameter references Range tab This tab allows you to specify the range for the Echogram, Echo Trace and Sample Data datagrams. Surface Range Click this button to choose the surface range for the echogram datagrams. The Surface Range dialogue opens. Bottom Range Click this button to choose the bottom range for the echogram datagrams. The Bottom Range dialogue opens. EK500 Datagram on page 83 Datagram tab on page 84 Echogram tab on page /C 85

88 Simrad MS70 Echogram tab This dialogue box allows you to define the number of surface and bottom values for the Echogram datagrams. Parameters No. of Surface Values: Select the number of echogram samples to export in the pelagic part of the datagram. No. of Bottom Values: Select the number of echogram samples to export in the bottom part of the echogram. TVG Type Specify the TVG type for the data in the Echogram datagram: Volume backscatter (Sv) 20logTVG Target strength (TS) 40logTVG Power (Pr) No TVG EK500 Datagram on page 83 Datagram tab on page 84 Range tab on page /C

89 Parameter references Environment This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Environment. This dialogue box controls the setting of environmental parameters. These parameters are used for estimating range, propagation loss, and spreading loss, all of which are essential concepts in the echo sounder. The absorption coefficient can be recalculated and displayed for various frequencies to examine the effect of temperature, salinity, and sound speed parameters on this parameter. The dialogue contains three tabs. Water Column tab on page 88 Transducer Face tab on page 90 Profile tab on page 92 Install on page /C 87

90 Simrad MS70 Water Column tab This tab allows you to enter the environmental parameters related to the water column. These parameters are used for estimating range, propagation loss, and spreading loss, all of which are essential concepts in the echo sounder. The water column sound speed is used to convert the acoustic data time samples into correct range for TVG compensation and target positions. Source Click to select from which source you wish to retrieve the environmental parameters. You can only use one source at the time /C

91 Parameter references Profile: Select this option if you want to retrieve the sound speed calculated from an external profile file.gototheprofile tab to select the profile to be used. Calculate: Select this option if you wish the echo sounder to calculate the sound speed value based on the specified temperature and salinity. The parameter values to be used by the calculation must be entered using the spin boxes. Manual: If you select this option, you must use the spin boxes below to enter the values. Environment parameters This field allows you to define the read-out of key environmental parameters. Temperature: Set the water temperature in degrees Celcius. Salinity: Set the water salinity in ppt. If you operate in fresh water, set salinity to 0 (zero). Sound speed: This is a read-out of the sound speed value calculated by the system. Frequency / Absorption: Select the frequency in the top spin box, and read the corresponding absorption value. This input has no effect on the MS70 performance, it is simply a calculator! The absorption coefficient can be recalculated and displayed for various frequencies to examine the effect of temperature, salinity, and sound speed parameters on this parameter. Environment on page 87 Transducer Face tab on page 90 Profile tab on page /C 89

92 Simrad MS70 Transducer Face tab The Transducer face tab allows you to select the source of the sound speed information measured at the transducer face. The sound speed information is used when the system calculates the element weights to match a beam opening request. This process takes place whenever a beam mode is calculated. If you decide to operate the system with varying sound speed at the transducer face, the beam steering is kept constant by compensating for the sound velocity. The element weighting is kept fixed to emulate the behaviour of a standard transducer. When a beam mode is activated, the beam opening and directivity index are calculated, for each beam, based on the current sound velocity at the transducer /C

93 Parameter references Source Manual: If you select this source, you can use the spin button below to enter a value directly. Probe: If the system has a hull mounted sound velocity probe connected, select this source to enter this value into the system. Profile: By selecting this source, the sound speed at the transducer will be set to the speed value from the profile at the transducer depth. Go to the Profile tab to select the profile to be used. Probe port setting: Click this button to select and set up a serial port for connection to the sound velocity probe. Once activated, a dedicated Sound Velocity dialogue will appear to offer a choice of ports. Once a port is selected, click Setup to defined the port s communication parameters. Sound Speed at transducer The parameters in this field are used if you decide you use manual sound speed input, and if you wish to enable an alarm to monitor the sound speed value. Sound speed: If you select manual source, use this spin button to enter the sound speed value. Warning limit for difference between profile and probe: This function compares the sound velocity reading from the probe with the current setting in the active profile. If the difference exceeds the value you have defined in the spin box, an alarm is generated. The purpose of this alarm is to notify you so that you can load a new profile. Environment on page 87 Water Column tab on page 88 Profile tab on page /C 91

94 Simrad MS70 Profile tab The Profile tab allows you to open and view a previously defined XBT profile. Click Browse to open a standard file dialogue. Locate and select the file, and click Open in the file dialogue to open the profile and put it to use. Environment on page 87 Water Column tab on page 88 Transducer Face tab on page /C

95 Parameter references Expansion This command is available on the Display menu. When accessed, a small context menu allows you to choose between Copy and Interpolation. This parameter is used when the number of samples is lower than the number of pixels, and the sample values are expanded to pixel values. Interpolation: Pixel values are interpolated between two sample values. Copy: A sample value is copied into multiple pixel values. Applytoall: Click to apply the choice to all channel windows. Note that this parameter can also be definedintheechogram dialogue box. Echogram on page /C 93

96 Simrad MS70 File Output This dialogue is opened by clicking the Record button on the Operation menu, and then selecting Record File. You can also open this dialogue from the Data Output button on the Setup menu. Once selected, the File Output dialogue box opens. This dialogue is used to specify which output you wish to save to a data file, and in which disk directory the data file shall be placed. The dialogue provides three tabs. Directory tab on page 95 Raw Data tab on page 96 Processed Data tab on page 98 Record on page /C

97 Parameter references Directory tab Click Browse to select a target directory for your recorded files. You can choose an already existing directory, or create a new directory by clicking the Make new folder button. File Output on page 94 Raw Data tab on page 96 Processed Data tab on page /C 95

98 Simrad MS70 Raw Data tab Raw data files can be recorded by the MS70 and stored to file. These raw data files can later be replayed by the MS70 or a post-processing system for further analysis. For more information on replaying raw data files refer to the Replay dialogue box. For more information on the data format for the raw data files refer to the Data formats chapter. Each raw data file name has the format: PREFIX- DYYYYMMDD- THHMMSS General Save Raw Data: Check this box to save raw data to file. File Name Prefix: Type any name into the text box. The chosen name will be used as prefixinalltherawdatafile names. Range: Use this spin box to define which range to collect echo sounder data from. The range defined is from 0 m (surface) down to the selected depth. File size New files will be automatically generated by the MS70 when the specified limit is reached /C

99 Parameter references Max. Vessel Distance: Use this spin box to define a limit (in nautical miles) for the maximum distance to be contained in one file. A value of 0 means no limit. Max. File Size: Use this spin box to definealimitforthe maximum amount of bytes to be contained in one raw data file. A value of 0 means no limit. Current File Size: When recording raw data is in progress the current file size is displayed. Automatic start Start at vessel distance (nmi): Raw data output can be set to start automatically after a previously defined sailing distance. File Output on page 94 Directory tab on page 95 Processed Data tab on page /C 97

100 Simrad MS70 Processed Data tab To support programs using data from the Simrad EK500 echo sounder, the MS70 can output EK500 defined datagrams on Ethernet. These datagrams can also be recorded onto a file. EK500 Save EK500: Check this box to choose to save EK500 datagrams to file. Click the button to open the EK500 Datagram dialogue box to set up the individual datagrams. File Output on page 94 Directory tab on page 95 Raw Data tab on page 96 EK500 Datagram on page /C

101 Parameter references Gain This command is available on the Main menu. It controls the display gain. When opened, enter a value manually, or click the + and signs to increase or decrease the gain in steps of 1 db. The chosen gain will automatically apply to all the beams, but you can override this by means of the Applytoallbutton. The value controlled by the Gain button is the same as the Minimum Level of the Colour Scale dialogue. Changing the colour scale with the Gain button implies that the Minimum Level and Maximum Level are shifted with the same value, and the colour step is kept constant. Colour Scale on page /C 99

102 Simrad MS70 Horizontal Axis This dialogue is opened by clicking the Horizontal Axis button on the Active menu. This dialogue is used to set the horizontal display span of the Echogram view. Distance: The echogram view displays the specified distance span. Time: The echogram view displays the specified time span. Ping: The echogram view displays the specified ping span. Check the View size box to specify that the number of horizontal pixels shall define the number of displayed horizontal pings (One ping per pixel). Label Select the label type used to display the horizontal span. Echogram view on page /C

103 Parameter references Install This command is available on the Setup menu. When accessed, a context menu appears with a range of choices. The Install context menu allows you to set up and define the installation parameters for the MS70. This includes input from external sensors, port management and transceiver setup. Topics Navigation on page 111 Environment on page 87 Motion on page 109 Synchronization on page 142 Sound Velocity Port on page 141 Remoting on page 132 Port Management on page 123 Instrument Offsets on page 102 Transceiver Selection on page /C 101

104 Simrad MS70 Instrument Offsets This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Instrument Offsets. This dialogue allows you to enter the physical location of the transducer array, the GPS antenna and the MRU sensor with reference to the vessels coordinate system. This is only done once, unless any of the sensors are moved. Ship dimensions: The location of the ship s origo must be defined prior to entering these parameters. The origo is normally defined by the shipyard, and it is mainly located on the ship s centre line and on the water line. In many cases the location of the origo is the same as the vessel s main gyro compass. Ship length: Enter the ship s physical length (in meters). Ship width: Enter the ship s maximum width (in meter). Ship s origo X: Enter the horizontal distance from the ship s stern to the location of the origo. Ship s origo Y: Enter the vertical distance from the ship s centre line to the location of the origo. Transducer offset: Enter the physical location of the transducer array in relation to the origo, and the rotation angles as measured when surveying the transducer installation /C

105 Parameter references GPS offset: Enter the physical location of the GPS antenna in relation to the origo. MRU offset: Enter the physical location of the MRU sensor in relation to the origo, and the rotation angles as measured when surveying the MRU installation. Install on page /C 103

106 Simrad MS70 LAN Port Setup This dialogue is opened by clicking the Setup button in Navigation and Port Management dialogue boxes. These are both accessed from the Install command on the Setup menu. The purpose of this dialogue box is to set up the parameters for LAN (Local Area Network) communication with external sensors. Local IP Address: Select local network card if more than one is available. Local port: Specify local port. Remote IP Address: Select remote computer. If the data communication is set up to receive data only, this parameter is not required. If you wish to set up an output for broadcast, define IP address This is the default setting. Remote port: Specify remote port. If the data communication is set up to receive data only, this parameter is not required. Navigation on page 111 Port Management on page 123 Install on page /C

107 Parameter references Marker Information This is not a command, but a field with information about the currently selected marker. The information appears automatically at the bottom of the Active menu once a marker is selected. The information is continuously updated. Selected Marker on page 139 Create Marker on page 73 Delete Marker on page /C 105

108 Simrad MS70 Maximize Window This function is available from the Active menu. This function allows you to enlarge the currently selected view. When enabled, the view will fill the entire left part of the screen. To enable the view, click the + character /C

109 Parameter references Messages This dialogue box is accessed from the Message button on the Title bar. When the Messages dialogue is open, you can view the various messages issued by the MS70. The messages are sorted into five categories, each with its dedicatedtablistedintheorder of importance: Errors System alarms Operational alarms Warnings Information Title bar on page /C 107

110 Simrad MS70 Mode This command is available on the Main menu. It allows you to select the beam mode you wish to use. The currently selected beam mode is identified in the middle of the button, while the four buttons (two on each side, identified with the numbers 1 through 4) allows you to select the top four beam modes that have been defined. To select from the whole range of beam modes, click on the middle button and select from the context menu that appears. Note When a new mode is selected, the program will terminate the current normal operation and return to inactive. Normal operation must then be selected to enter the new mode. Beam Mode Administration on page /C

111 Parameter references Motion This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Motion. The motion sensor is connected to the TRC0 computer in the transceiver rack. Baud rate: baud Protocol: Simrad EM1000 The protocol is defined the external interface specification document. Install on page 101 Motion Compensation on page /C 109

112 Simrad MS70 Motion Compensation This dialogue box is accessed from the Setup menu. This dialogue allows you to switch off heave, roll and pitch compensation. It also provides a read-out of the current compensation values (in degrees). Tick the appropriate boxes to disable the compensation. Motion values used to compensate for the last ping These are read-outs only. Motion on page /C

113 Parameter references Navigation This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Navigation. This dialogue box controls the configuration of position, speed, heading and travelled distance information from external sensors. It contains four tabs. Position tab on page 112 Speed tab on page 113 Distance tab on page 114 Heading tab on page 115 Install on page /C 111

114 Simrad MS70 Position tab The system receives vessel position information using standard NMEA datagrams. The received position is shown in the Information field on the title bar. Port: Select input port for the datagrams. Setup: Press this button to set up the interface parameters. NMEA sentence: Select which NMEA sentence to use. Auto means that all datagrams are interpreted. Talker ID: Specify the NMEA talker identity (the first two characters in the NMEA sentence). Use None to accept all talker identifiers. Serial Port Setup on page 140 LAN Port Setup on page /C

115 Parameter references Speed tab This tab controls the vessel speed input. The speed is shown in the Information fieldonthetitlebar. Port: Select input source port from the list. Setup: Set up the selected port. NMEA sentence: Select datagram from the list. Auto means that all datagrams are interpreted. Manual speed: If speed information is unavailable, click the box and set manual speed with the spin box. Serial Port Setup on page 140 LAN Port Setup on page /C 113

116 Simrad MS70 Distance tab The system receives vessel distance information either internally derived from speed information, via NMEA datagrams, or from 1/200 nmi contact pulses. The received or calculated distance value can be seen on the Vessel distance button in the Setup menu. Source: Select source. Port: Select the input port. Setup: Set up the selected port. NMEA sentence: Select which datagram to use. Distance: The current vessel distance can be set manually. Serial Port Setup on page 140 LAN Port Setup on page /C

117 Parameter references Heading tab This tab controls the vessel heading input. The heading is shown in the Information field on the title bar. Source: Select input source port from the list. NMEA sentence: Select datagram from the list. Auto means that all datagrams are interpreted. Talker ID: If speed information is unavailable, click the box and set manual speed with the spin box. Serial Port Setup on page 140 LAN Port Setup on page /C 115

118 Simrad MS70 New Beam Mode This dialogue box is accessed from the Beam Mode Administration dialogue box. This dialogue box allows you to enter the name of a new beam mode. The name MUST start with a letter, and it can not contain the character /! Beam Mode Administration on page /C

119 Parameter references No Of Colours This command is accessed from the Display menu. When accessed, a small context menu appears to provide the choices. Use this menu to control the number of colours used in the display presentation. The selection is 12 or 64 colours. 12 colours are compatible with the Simrad EK500, while 64 colours are provided for compatibility with the Simrad ER60 and sonars. The swath view is always displayed in 64 colours. Colour Scale on page 71 Echo Colours on page /C 117

120 Simrad MS70 Operation This command is available on the Operation menu. The Operation command allows you to choose between the three operational modes: Inactive: The MS70 will be paused. No transmission or reception will take place. Normal: The MS70 will commence normal operation. Transmission and reception will take place. Replay: The MS70 will be paused. No transmission or reception will take place. However, you will be able to play back prerecorded data files. Press the Operation command to make your choice, and select mode on the context menu. If you wish to run the system in Replay mode, you will also need to click the Replay File button to select replay file. How to select operational mode on page /C

121 Parameter references Palette This command is available on the Display menu. When accessed, you are provided with a context menu that allows you to select the colour scheme on the display. Select the background colour and day/night brightness to suit your preferences. No Of Colours on page 117 Echo Colours on page /C 119

122 Simrad MS70 Ping This command is available on the Operation menu. It is used to enable or disable the pinging (transmission). A small context menu allows you to make the appropriate choice. Note that even though Ping has been set to On, you must also set Tx Mode to Active in order to transmit energy into the water. With TX Mode in Passive, the system will only perform the reception. If ping mode is set to Maximum or Interval, transmissionis activated by selecting on and continues until Off is selected. If ping mode is set to Single Step, one transmission is sent before the button automatically returns to Off. Fore more details, refer to the Tx Mode description. Tx Mode on page 154 Ping Interval on page 121 Ping Mode on page /C

123 Parameter references Ping Interval This command is available on the Operation menu. It is used to select the time period between each ping when you have selected Ping interval mode. A small context menu allows you to enter a value from the keyboard. Ping on page 120 Ping Mode on page /C 121

124 Simrad MS70 Ping Mode This command is available on the Operation menu. When pinging is enabled, you can select from three different ping modes. Single step The MS70 will transmit a ping whenever you press the ping button. Interval The MS70 will ping a regular intervals. The interval is defined by means of the Ping Interval command. Maximum The MS70 will ping with maximum rate defined by the current depth range. Ping on page 120 Ping Mode on page /C

125 Parameter references Port Management This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Port Management. The Port Management dialogue allows you to control the properties of each of the available communication channels on the computer. The MS70 software automatically scans the computer to locate and identify ethernet and serial line interfaces. USB interfaces are only recognized if they are defined to communicate serial data. Once the software has established a list of valid interfaces, you can set up and control the parameters. The Port Management dialogue provides two lists, one for serial line ports and one for local area network (LAN) ports. Serial ports The majority of the parameters are self explanatory. Protocol: Each serial line can communicate with more than one sensor simultaneously provided that the sensors all use the same protocol /C 123

126 Simrad MS70 Sensors: This column is used to identify the external sensor currently connected to the serial line. Add: If you have added additional serial lines to the computer (for example by installing an extra interface circuit board), you can click Add to identify the new port(s). If you have previously released an unused serial port, but wish to bring it back to MS70 use, you must also click Add to include it. Remove: Once the MS70 has identified and listed all the available serial lines on the computer, these can not be used by any other software applications on the same computer. However, if the MS70 does not need a specific serial line, it can be released for other use when you select it and click the Remove button. Setup: Select a serial line and click the Setup button to set up the communication parameters. A dedicated Serial Port Setup dialogue is opened to allow for the necessary adjustments. Monitor: Select a serial line and click the Monitor button to open the Port Monitor dialogue for a close study of the communication. LAN ports Local IP: This is the Internet Protocol (IP) address of the network card in your computer that you wish to use. Local port: This is local port you wish to use. Remote IP: This is the Internet Protocol (IP) address of a remote computer. For point-to-point communication, you must define this IP address. If you wish to broadcast information, enter IP address For inputs, you do not need to set up this parameter. Remote port: Define the port on the remote computer if point-to-point data export is intended. Protocol: Each ethernet line can communicate with more than one sensor simultaneously provided that the sensors all use the same protocol. Sensors: This column is used to identify the external sensor currently connected to the Ethernet line. Add: If you wish to assign a new port to the existing network card, or add a new network card, click Add to identify the new port(s). Remove: Use this feature to remove ports you do not need. Setup: Select a LAN port and click the Setup button to set up the communication parameters. A dedicated LAN Port Setup dialogue is opened to allow for the necessary adjustments /C

127 Parameter references Monitor: Select a LAN port and click the Monitor button to open the Port Monitor dialogue for a close study of the communication. LAN Port Setup on page 104 Serial Port Setup on page 140 Port Monitor on page 126 Install on page /C 125

128 Simrad MS70 Port Monitor This dialogue is opened by selecting a local area network (LAN) port or a serial line in the Port Management dialogue, and then clicking the Monitor button. The Port Monitor dialogue allows you to study the communication stream on the chosen serial line or LAN port. Note This dialogue is a tool for debugging purposes. It is neither required nor intended for normal operation of the MS70. The Port Monitor dialogue provides one text field for incoming messages (Rx data), and one for outgoing (Tx data). Use these fields and your own knowledge of the data communication to investigate the telegrams /C

129 Parameter references Parameters The majority of the parameters are self explanatory. Auto update: Thefield is constantly updated with new information. If you wish to freeze the information for further investigation, click to disable this parameter. Hex display: Observe the information in hexadecimal format. Delete: Remove the content of the field. Always on top: This function places the dialogue on the top of all other dialogue boxes on your desktop. Current port: If you wish to change your attention to a different port, you can choose the port here instead of returning to the Port Management dialogue. Note To close this dialogue, click the X in the top right corner. Port Management on page 123 Install on page /C 127

130 Simrad MS70 PP Filter This command is accessed from the Active menu. The PP Filter (Ping-to Ping filter) reduces unwanted noise and echoes from the screen. The filter has three different strengths. As the ping-to-ping filter compares the echoes from the last 2 (Weak), 4 (Medium) or 8 (Strong) pings, it will take this selected amounts of pings to make a stable presentation when changing most of the sonar parameters. The filtering routine takes the vessel s movements into consideration when comparing the echoes from ping to ping /C

131 Parameter references Range This command is available on the Main menu. When the menu command is opened to access the context menu, you are allowed to enter a new range value directly. You can also click Applytoallto have the chosen range apply to all the channels. This parameter can also be set in the Surface range or Bottom range dialogues /C 129

132 Simrad MS70 Raytrace This dialogue is opened by clicking the Raytrace button on the Setup menu. The Raytrace shows the vertical sound trace for each of the transmitted sectors. One line is displayed for each sector. The tilt value for the centre of each sector is used for each trace /C

133 Parameter references Record This command is available on the Operation menu. The Record command allows to you enable or disable recording of retrieved data. When accessed, a small context menu allows you to switch recording on or off. You can also choose Record File or Split. Record File: This command opens the File Output dialogue box. The parameters provided by this dialogue allows you to control the data recording. Split: During recording, you can click this command at regular intervals. Every time you do, the current recording file will be terminated, and a new file will be started. In this way you can manually control the size of the recorded file. File Output on page /C 131

134 Simrad MS70 Remoting This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Remoting. The MS70 Operation Station will normally be equipped with twonetworkcards. Oneisusedforcommunicatingwiththe MS70 Transceiver Unit, the other for communicating with other instruments and computers on the ship. This dialogue controls the network setup. Two tabs are provided: Server tab on page 133 Client tab on page /C

135 Parameter references Server tab The Server tab controls the communication with external control programs or post processing programs. It specifies the network card and port on which the external program should connect to retrieve data or send commands to the MS70. Browse request handling Local IP address: Enter the IP address of the network used to communicate with external programs (usually the ship network). Local port: Enter the port number for the remote program to ask for connection. Application information Name: Enter the computer name, for example MS70. Description: Enter the computer s descriptive name, for example Scientific multibeam sonar. ID: This parameter is only used in case you wish to control more than one MS70 on the same network. Install on page /C 133

136 Simrad MS70 Client tab The Client tab is used to select network for communication between MS70 Operator Station and Transceiver Unit. Server browsing Local IP address: Enter the IP address of the Transceiver Unit network. Remote IP address: Enter the IP address shown in the screen capture. Remote port: Enter the port number shown in the screen capture. Communication mode: Select the communication mode shown in the screen capture. Install on page /C

137 Parameter references Replay This dialogue is opened by clicking the Operation buttononthe Operation menu, and then selecting Replay. In order to investigate stored data, the MS70 may be set up in Replay mode. This dialogue is used to select one or more raw data files for replay. If you add more than one file to the list, all the files are played back in the order they are listed. To rearrange the list, use the two arrow buttons on the right hand side. To make switching between different replay files easier you can add multiple files to the displayed file list using the Add button. Files are removed from the list using the Remove button. For more detailed usage, refer to the Operational procedures. If you wish the raw data file(s) to be continuously played back, click Loop. When the selected file(s) reach the end, they are automatically restarted. How to select replay file on page /C 135

138 Simrad MS70 School Volume The School Volume dialogue box allows you to search for schools of fish in all the 500 beams. The dialogue is opened from the Setup menu. The search function is activated by selecting School Calculations Active under the Settings tab. Orange frames in the Horizontal Section and Vertical Section views indicate the currently active search area. The system measures how many of the cells in the search area that have a volume backscattering larger than what is specified in the Min School Sv parameter on the Settings tab. The result is calculated, and presented to you as a volume of the schools within the search area. When a school of fish passes through the sonar beams, the school volume will typically increase to 200 km² from a total volume of km². The dialogue provides two tabs: Settings tab on page 137 Range cells tab on page /C

139 Parameter references Settings tab The search function is activated by selecting School Calculations Active. The first parameter on the Settings tabisusedtodefine the level of backscattering that will trigger the volume calculations. The default value is 52 db. The School volume, Total volume and Average school Sv fields are used to present the results from the calculations. The remaining parameters provided by the Settings tab allows you to define a search area. The area is defined by establishing: inner and outer range upper and lower tilt minimum and maximum bearing In order avoid interference from bottom and water surface, you can also define minimum and maximum depth /C 137

140 Simrad MS70 Range cells tab The Range cells tabisusedtodividethesearchareaintothree range cells. The range in each cell can be adjusted individually, and once defined, you can read the volume information from each individual cell and from the total range. You can also save the volume information as a data file. Click Store to file, and the data is automatically saved to the file name you choose. One line is stored for every ping, and each line consists of: Current time total school volume school volume in box 1 school volume in box 2 school volume in box 3 The save process will stop once you disable the function. By default, the data is stored in a text file where each value is divided by a comma. This allows you to insert the data file into a commercial spreadsheet application. If the computer is setuptousesemicolontodividethedatafiles, this character is automatically used. The file is saved to the current default directory. If you click Name as data file, the resulting volume data file will be given the same name as the raw data file /C

141 Parameter references Selected Marker This command is available on the Active menu. When activated, a small context menu appears to allow marker selection. On the context menu, you can select Delete Marker to remove the currently selected marker. Delete Marker on page 74 Create Marker on page /C 139

142 Simrad MS70 Serial Port Setup This dialogue is opened by clicking the Setup button in Navigation and Port Management dialogue boxes. These are both accessed from the Install command on the Setup menu. The purpose of this dialogue box is to set up the parameters for serial communication with external sensors. Set up the parameters for baud rate, number of data bits and parity to suit the applicable serial line communication. Navigation on page 111 Port Management on page 123 Install on page /C

143 Parameter references Sound Velocity Port This dialogue is opened by clicking the Install command on the Setup menu, and selecting Sound Velocity Port. The purpose of this dialogue box is to define which computer interface port to be used for the sound velocity sensor input. Select port. and click the Setup buttontodefine the communication parameters on the selected port. Serial Port Setup on page 140 Install on page /C 141

144 Simrad MS70 Synchronization This dialogue box is accessed from the Setup menu. It controls the synchronization of the system. External synchronization mode Use this dialogue box to set up the acoustic synchronization control of the system. Three modes are provided. None: The system will run using internal ping interval parameters, independent on signals coming on the synchronization port. Slave: The system wait for external trigger signal, arriving on the synchronization port, before each ping. Master: The system run using internal ping interval parameters and transmits external trigger signals to other instruments on the synchronization port. Other parameters Synchronization delay: This delay parameter is used differently depending on the chosen mode. Slave: The system will wait for the delay time after the external trigger signal has arrived before transmitting the ping. (Post-trigger) Master: The system will wait for the delay time after the external trigger signal has been sent to the slaves before transmitting the ping. (Pre-trigger) Synchronization port: This is read-out of what port that is assigned for synchronization cabling. Synchronize on page /C

145 Parameter references Synchronize This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Port for Synchronize. This dialogue is used to select which RS-232 port to connect the external synchronization wiring. Synchronization on page /C 143

146 Simrad MS70 Target Tracking This dialogue box is opened from the Target Track button on the Setup menu. Once you press the Target Track button, the dialogue box appears. This dialogue is used to specify the accuracy of the tracking feature. A small window is placed around the tracked target, and you can specify the properties of this window. The first time you start the tracking function, you may experience that the system halts for a few seconds. This is because the algorithms used to calculate the tracking function are very resource-demanding. During the time it takes to start the tracking, your target may have vanished! In order to correct this, the Target Tracking dialogue has been provided with a Tracking activate selector. By means of this selector, you can set up the various parameters before tracking is started, and then activate the tracking just when you need it. Note that the tracking functionality may slow down the system, as the complexity of the tracking algorithms may reduce the ping rate slightly. Track window The parameters provided for Range, Tilt and Bearing are used to specify the size of the search window. This search window will be placed around the target to be tracked. Once target tracking is activated, the Zoom view will automatically follow the target. The size of this zoom window is also specified by the Track window parameters. Range: Select the range from the vessel to the current target to be tracked /C

147 Parameter references Tilt: Select the appropriate tilt to the target. Bearing: Select the appropriate bearing to the target. Other parameters If you wish the system to determine an automatic tracking range, you can enable the Auto Range function. The outer search range is then set to be equal to the current horizontal range. If you switch off the Auto Range function, you can manually define the inner and outer search range. This allows you to limit the uncertainty caused by the noise inflicted by longer ranges. Auto Range: Click to enable the automatic range setting. Inner search range (m): Define the inner search range when the Auto Range function is switched off. Outer search range (m): Define the outer search range when the Auto Range function is switched off. Tracking activate: Activate the selector to start tracking, and use it to pause the tracking process when it is not needed. School Volume on page /C 145

148 Simrad MS70 Tooltip This dialogue is opened from the Display menu. This dialogue is used to select which information you wish to have displayed as tool tips (information displayed next to the cursor) in the different views. Each view has its own set of parameters which can be switched on or off. Windows and views on page /C

149 Parameter references Transceiver Selection This dialogue is opened by clicking the Install buttononthe Setup menu, and then selecting Transceiver. This dialogue allows you to select which transceiver you wish to use. Install on page /C 147

150 Simrad MS70 TRU On/Off This dialogue is opened from the Setup menu. When opened, this dialogue permits you to switch the transceiver rack on or off. Topics Normal dialogue view on page 149 Advanced dialogue view on page 151 Get IP and Mac addresses on page /C

151 Parameter references Normal dialogue view In most cases, the Normal dialogue view will be sufficient to perform the basic on/off operation. The on/off sequences take place as follows: 1 When the TRC Beamforming computers in the Transceiver Unit are switched off, the lamp in the bottom top corner will be black, and the text TRU OFF will be shown. 2 When you click the Start or Restart button, the lamp will flash in green with corresponding text Starting. 3 The rectangular fields below the lamp fill be filled with green colour as the start-up sequence progresses. 4 When the start-up sequence is successful, the lamp will remain green with the text TRU ON. 5 If an error occurs, the lamp will be red with a white X over it, and an error message will be provided. 6 During system shutdown the lamp will flash with text Stopping. The progress bar and the number of seconds it will take to start the system are based on the last time the system was started. The information will therefore be quite accurate. Optional buttons Restart: Click this button to restart the equipment in the transceiver rack. The sequence is performed automatically. The horizontal progress bar below the button will provide you with immediate visual feedback /C 149

152 Simrad MS70 Shutdown: Click this button to shut down the equipment in the transceiver rack. The sequence is performed automatically. The horizontal progress bar below the button will provide you with immediate visual feedback. Advanced: Click the button to see the Advanced information. See Advanced dialogue view on page /C

153 Parameter references Advanced dialogue view The Advanced dialogue view provides you with additional functionality. Caution The functionality provided by this advanced dialogue view is intended for maintenance and software debugging activities only. Parameters IP and MAC addresses: This button opens the IP and Mac addresses dialogue box in order to retrieve the Mac addresses required for the automatic power-up sequence. Transceiver: Click this button to open the Transceiver Selection dialogue. Beamformers OFF: Click this button to disable the beamformer software, and switch off power to the transceiver subracks. TRX Powers ON: Click this button to enable the transmitter software, and switch on power to the transceiver subracks. TRX Powers OFF: Click this button to disable the transmitter software, and switch off power to the transceiver subracks. Always on top: Click this option if you wish to have this dialogue button on the top of everything else! /C 151

154 Simrad MS70 Debug: Thistextfield is provided for debug information used during software development. Errors: Thistextfield is provided for error information used during software development. Get IP and Mac addresses on page 153 Transceiver Selection on page /C

155 Parameter references Get IP and Mac addresses In order to power up the TRC computers, unique Mac addresses are required. These addresses identify the ethernet boards located in each computer, and this information is hard-wired. The first time the TRC computers are powered up, you will need to do this manually, and once they are activated, you can read the addresses using this dialogue and procedure. The next time the computers are powered up, the Mac addresses are recorded by the MS70, and this dialogue will no longer be needed. If one (or more) of the TRC computers are replaced, the new Mac address(es) must be retrieved, and this procedure must be repeated. In order to automatically retrieve the Mac addresses, observe the following procedure. 1 Make sure that the IP addresses for the six TRC computers are correct. 2 If the IP addresses are not shown, check that the computers are switched on. If not, switch them on manually. 3 Click the Get MAC Addresses button. 4 Observe that the MAC addresses are retrieved automatically. IP and Mac addresses may be edited manually /C 153

156 Simrad MS70 Tx Mode This command is available on the Operation menu. When activated, a small context menu appears to allow mode selection. You can also press the + and - signs on each side of the menu button to select between the modes. Thisparameterisusedtodefine the transmit mode for the acoustic transmission. You can choose between the following modes: Passive Active How to select transmission mode on page /C

157 Parameter references Tx Power This command is accessed from the Operation menu. It is used to control the transmit power for the acoustic transmission. You can choose between the following values: Max -6 db -12 db By reducing the transmit power by -6 db or -12 db the source level of the transmission will also be reduced by -6 db or -12 db respectively. How to select transmission mode on page /C 155

158 Simrad MS70 User Setting This dialogue is opened from the Main menu. The User Setting dialogue box allows you to save the current user configuration, and to retrieve previously saved user settings. To save the current setting, click Save current setting, andenter a name to identify it. An icon will automatically be placed in the Saved settings field. To retrieve a user setting, click once on the icon, and then Ok /C

159 Parameter references Vessel Distance This command is accessed from the Setup menu. This parameter will display the vessel s sailed distance. The information is retrieved from an external distance sensor providing VLW telegrams. Alternatively, the distance value can be initially entered manually. The sailed distance value will then automatically increment as the vessel is moving. To reset the value to 0, click the middle of the button to open the context menu. Then replace the current value with 0. Navigation on page /C 157

160 Simrad MS70 View Beam Mode This command is accessed from the Operation menu. When accessed, this command will open the Beam Mode dialogue box. The purpose of this command is to observe the parameters of the current beam mode. When the Beam Mode dialogue is accessed from this command, you will not be able to do any changes to the beam parameters. In order to change the parameters, you must access the dialogue through the Beam Mode Administration dialogue on the Setup menu. Beam Mode on page 57 Beam Mode Administration on page /C

161 Parameter references Zoom Range This command is located on the Operation menu. This command allows you to zoom in on the displayed echo signal. Two parameters are used. Refer to the Zoom Start command description for more information. Zoom Start command on page /C 159

162 Simrad MS70 Zoom Start command This command is accessed from the Operation menu. This command allows you to zoom in on the displayed echo signal. Two parameters are used: Zoom start (A) sets the start distance for the zoomed area. Zoom range (B) sets the size of the zoomed area. A B (CD016017A) Zoom Range on page /C

163 Calibration utility CALIBRATION UTILITY This chapter contains information about the calibration of the MS70 Scientific multibeam sonar. Topics Getting started on page 162 Views on page 164 Reports on page 170 Menu system on page 171 Parameter references on page /C 161

164 Simrad MS70 Getting started The Calibration utility is started from the Setup menu. Each beam mode to be used on a survey must be calibrated separately. For each beam new estimates for adjusting gain and sa correction must be calculated using the measured Target Strength (TS) data and the reference sphere values. Before you start the collection of system parameters and target strength data, you must select the reference sphere to be used, and define the layer limits close to the expected depth of the sphere. A TS Detection dialogue will allow you to enter the required parameters used to accept single targets. To increase the sampling volume of target strength detections, synthetic roll and pitch parameters may be enabled in a separate dialogue. Procedure summary Position the reference target under the ship Select the beam mode to be calibrated, and start pinging. Views for each beam will appear in the main window for the MS70 system. Start the raw data recording in order to replay the calibration off-line. Now, start the data collection, and reposition the sphere. When the required amount of data has been collected, stop the data collection. If required, edit the current target strength data by deleting detections that does not belong to the reference sphere. Note This is important and will often improve the result estimates and the statistics. If the quality of the calibration data is acceptable, save the information. When you save the calibration data the current beam mode is changed, and the files containing detailed reports (XML and PDF) are generated. The detailed and summary reports may be printed. They represent the documentation for the calibration for the selected beam mode /C

165 Calibration utility Calibration views The different views provided will display the relevant information for monitoring the calibration of the selected beam mode. The best quality of the calibration will rely on several target strength detections for each beam. The layout of the beams for a selected beam mode is shown in a dedicated view. Small circles in the different beams show the accepted target strength detections and their positions. During the calibration the history of the movement of the sphere is displayed and detailed target strength data and results will be continuously updated /C 163

166 Simrad MS70 Views The Calibration utility s main dialogue provides a menu system and four views. The views provide relevant system parameters and the detected target strength data. The four views are identified as follows: Top left (with red circle): Selected Beam Top right: Beam List Bottom left: Beam mode Bottom right: Numerical ThesizeoftheCalibration dialogue and the various views can be adjusted to suit your preferences /C

167 Calibration utility Selected Beam view The top left view represents the currently selected beam. This selection is entered by left mouse clicking in the beam mode or Beam list views. The circle represents the shape of the beam and also the one way 3 db beam compensation limit. The size of view is designed to allow the maximum beam compensation (6 db) to fit within this area. The red circle indicates last ping target strength positions, and helps to monitor the movement of the target within the selected beam. By placing the cursor inside the view a small label shows the alongship and athwartship angles /C 165

168 Simrad MS70 Beam List view The Beam List view displays the channel identificators for each beam in the beam mode. To select data for a beam, place the cursor on the requested beam identification, and click the mouse button. This will change the other views to reflect the selection /C

169 Calibration utility Beam mode view This view provides the layout for the current beam mode. The crossing of the X/Y axis represents the origin, and all beams will be located relative to this point. The view displays the currently selected beam in red colour. Selecting a new beam is done by positioning the cursor above the beam and clicking the left mouse button. This view includes the positions of all target strength detections from the data collection was started. The last ping detections are displayed in red circles while the previous detections are painted in grey. The Beams Hit Ratio presentation on the top of the view tells you how many beams that have received a hit compared to the total number of beams /C 167

170 Simrad MS70 Numerical view The Numerical view is designed with four different tabs to retrieve the information. The tabs are: General Beam Data TS Data Results General tab The General tab shows the common data and parameters for the system. Calibration: System information Transceiver parameters common to all beams Reference target and common limits in depth and deviation Target strength detection parameters used by all beams Roll and pitch limits Beam Data tab Each beam has a set of individual parameters. This tab displays these beam data parameters for the selected beam. TS Data tab Each beam has a set of individual target strength detections. This tab displays the target strength data for the selected beam. Each row consist the following columns: X: Used for target strength editing; a mouse click in an "X cell" deletes the corresponding data Number: Continuous numbering of target strength detections /C

171 Calibration utility Time: Ping time of detection Depth: Estimated depth to target in meter TS Comp: Estimated target strength (in db) including the beam compensation TS UnComp: Estimated target strength (in db) without beam compensation in db Along: Estimated alongship angle in degrees Athwart: Estimated athwartship angle in degrees sa: Area backscatter strength (in m2/nmi2) when integrating the target pulse You must inspect the target strength data carefully, and delete all data that obviously does not belong to the current target reference. Pay special attention to the depth estimate and suspicious target strength values when editing the data collection. Results tab This tab shows a summary of the results for all beams. The calculation of these parameters is made for each ping. Each row consist the following columns: Beam Name: Theidentification of the beam Target Hits: Total number of hits connected to the beam TS Sphere: The target strength value (in db) for the reference beam at the given frequency TS Median: Median target strength (in db), calculated by sorting all target strength values into an array and selecting the target strength value in middle of this array TS Average: Average target strength (in db), calculated by summing all target strength values (linear) and divide by the total number of hits TS Std.Dev: Standard Deviation (in db) of the target strength data for the beam Gain Nominal: Pre-calculated gain estimate (in db) Gain Adjust: Adjustment to the nominal gain estimate (in db) SA-Correction: Nominal SA correction for (-1.59 db). Hanning pulse shape SA-Corr.Adjust: Adjustment to the nominal SA correction (in db) By clicking at a row in this list the current beam selection will be changed /C 169

172 Simrad MS70 Reports The calibration reports are automatically created based on the data saved after the data collection. Two report formats are available: Summary Detailed Both report formats are made available on PDF format /C

173 Calibration utility Menu system The menu system is small and serves the basic needs to setup the main calibration parameters, and to start and stop the data collection. The menu system provides the following options. Detailed information about each option is found in separate chapters, observe the page references below. File menu Setup on page 178 Roll on page 176 Single Target Detection on page 180 Save As on page 177 Show Reports on page 179 Replay XML on page 175 The Exit command closes the utility. View menu TS Hits command on page 182 Gain Adjustment Plot on page 174 Start/Stop menu Start/Stop on page 181 Help menu About dialogue on page /C 171

174 Simrad MS70 Parameter references All menu commands and dialogue boxes are explained. They are listed in alphabetical order. About dialogue on page 173 Gain Adjustment Plot on page 174 Roll on page 176 Setup on page 178 Single Target Detection on page 180 Save As on page 177 Show Reports on page 179 Replay XML on page 175 Start/Stop on page 181 TS Hits command on page /C

175 Calibration utility About dialogue The About dialogue is accessed from the Help menu in the Calibration utility. The dialogue provides information about the current software version /C 173

176 Simrad MS70 Gain Adjustment Plot The Gain Adjustment Plot command is accessed from the View menu in the Calibration utility. After a calibration has been performed, this command allows you to view the calculated gain adjustments displayed in the Beam mode view as a colour or black/white presentation. TS Hits command on page /C

177 Calibration utility Replay XML The Replay XML dialogue is accessed from the File menu in the Calibration utility. This dialogue allows you to open previous reports to run the data again /C 175

178 Simrad MS70 Roll The Setup dialogue is accessed from the File menu in the Calibration utility. Roll (Deg) When the roll control parameters are enabled, synthetic roll values will cause the beams to move in order to compensate for the roll. Hence the target positions to change in the beam, without moving the sphere. This may be used to increase the coverage of hits inside a beam with less moving of the sphere. The limits for start position, minimum, maximum and step increment is set in the dialogue. Click Activate to enable the synthetic roll values /C

179 Calibration utility Save As The Save As dialogue is accessed from the File menu in the Calibration utility. This option offers detailed storing of all parameters and data to a pre-defined folder; CalibrationReports. The estimated gain and sa correction adjustments will be written to the beam mode in use. Inputs for calibration name and a comment text field is provided in the dialogue. The resulting file name will have the extension *.Report.XML. Two different calibration reports will be generated in standard PDF file format: A detailed report with extension *Detailed.pdf. A summary report with extension *Summary.pdf. A standard operating system dialogue is used /C 177

180 Simrad MS70 Setup The Setup dialogue is accessed from the File menu in the Calibration utility. Target Reference These parameters are use to identify the target used during the calibration. Name: Choose the sphere to use from a list of predefined targets. Max deviation: Define the maximum allowable deviation limit in target strength compared to the reference target strength. Target Depth Limits Upper/Lower: These parameters allow you to define the upper and lower limits for collecting target strength data. All detections outside these limits will be ignored /C

181 Calibration utility Show Reports The Show Reports dialogue is opened from the File menu in the Calibration utility. This command opens a standard file open dialogue, and you can select the applicable report. Based on the chosen file, the formatted reports for summary and detailed information are automatically generated and displayed in two new windows. The reports may be printed, and they are intended as the main documentation for the selected calibration /C 179

182 Simrad MS70 Single Target Detection The Single Target Detection dialogue is opened from the File menu in the Calibration utility. The Single Target Detection dialogue is used to set up parameters used in the target strength subscriptions for all the beams in the beam mode. The parameters are identical to those used during normal operation of the MS /C