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Reference manual

Simrad EK60

Scientic echo sounder

TECHNOLOGY FOR SUSTAINABLE FISHERIES

www.simrad.com

Summary of content (256 pages)

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Reference manual Simrad EK60 Scientific echo sounder www.simrad.
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Simrad EK60 Reference Manual Release 2.4.X This reference manual describes how to use the Simrad EK60 and EY60 scientific echo sounders. The software application used to operate and control the EK60 and EY60 systems is referred to as Simrad ER60. 164692/D 23.02.
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Revision status Document number: 164692 /Revision D / ISBN-13: 978-8066-011-4 Rev.A July 2003 First version. Rev.B September 2004 Revised for software version 2.1.0. Rev.C January 2008 Revised for software version 2.2.0. Document transferred to XML format. Rev.D February 2012 Revised for software version 2.4.x. The product name changed from ER60 to EK60. Copyright ©2012 Kongsberg Maritime AS The information contained in this document remains the sole property of Kongsberg Maritime AS.
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Reference Manual Table of contents ABOUT THIS MANUAL ....................................................... 9 SIMRAD EK60 ................................................................. 11 Important ................................................................................................................12 When the EK60 is not used.......................................................................... 12 When you are docking your vessel ..........................................................
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Simrad EK60 EK60 CALIBRATION ........................................................ 36 Basic information about calibration .......................................................................37 Transducer maintenance .........................................................................................37 Calibration procedures ...........................................................................................38 Check installation .............................................................
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Reference Manual Echogram short-cut menu............................................................................ 70 Scope short-cut menu.................................................................................. 71 Colour Scale short-cut menu........................................................................ 72 Numerical short-cut menu ........................................................................... 73 FUNCTIONS AND DIALOGS .............................................
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Simrad EK60 Close All.................................................................................................. 135 Help menu; functions and dialogs ........................................................................136 Contents................................................................................................... 136 About....................................................................................................... 136 Short-cut menus; functions and dialogs ............
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Reference Manual DBT Depth below transducer..................................................................... 178 DPT Depth ............................................................................................... 178 GGA Global positioning system fix data..................................................... 179 GLL Geographical position latitude/longitude ............................................ 179 HDG Heading, deviation and variation.......................................................
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Simrad EK60 Disconnecting from server......................................................................... 211 Data subscription types ........................................................................................ 211 Bottom detection ...................................................................................... 212 Target strength (TS) detection.................................................................... 212 Sample data........................................................
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About this manual About this manual Purpose The purpose of this reference manual is to provide the descriptions, procedures and detailed parameter explanations required to allow for safe and efficient use of the Simrad EK60, as well as a thorough understanding of the system parameters and adjustments. A good understanding of system functions and controls is essential to fully take advantage of the functionality provided.
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Simrad EK60 Registered trademarks Windows®, Windows® XP®, and Windows® 7 are either registered trademarks, or trademarks of Microsoft Corporation in the United States and/or other countries. Simrad®, SIMRAD® and the Simrad® logo are either registered trademarks, or trademarks of Kongsberg Maritime AS in Norway and other countries.
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Simrad EK60 Simrad EK60 Study this chapter to familiarize yourself with the Simrad EK60. The operation software provided for the Simrad EK60 is identified as Simrad ER60. This manual describes both the EK60 echo sounder system as well as the ER60 software.
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Simrad EK60 Important As with all other advanced instruments, there are a few important things that you must be aware of. Topics • When the EK60 is not used on page 12 • When you are docking your vessel on page 12 • If something breaks down on page 12 • When you switch off the EK60 on page 12 • Transducer handling on page 13 When the EK60 is not used When you do not use the EK60, switch off the display and the computer.
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Simrad EK60 Transducer handling Note All transducers must be handled as delicate items. Any wrongful handling may damage the transducer beyond repair. Do not activate the transducer when it is out of the water. Do not lift the transducer by the cable. Do not step on the transducer cable. Do not handle the transducer roughly, avoid impacts. Do not expose the transducer to direct sunlight or excessive heat. Do not use high pressure water, sand blasting or metal tools to clean the transducer face.
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Simrad EK60 • One colour display • One Processor Unit (personal computer) • An Ethernet switch • One or more transceiver units • One or more transducers Real time echo integration and target strength analysis in an unlimited number of layers is provided as well as storage of raw data for replay or analysis in one of several post-processing software packages. Several post-processing alternatives are available for rapid survey analysis and reporting.
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Simrad EK60 The basic Simrad EK60 scientific echo sounder system consists of one transducer, one transceiver unit and one processor unit (computer). In addition to this, the system is provided with echo sounder and post-processing software. The complete Simrad EK60 system comprises: • Simrad EK60 hardware • Simrad ER60 scientific echo sounder application • Simrad BI60 post-processing software (no longer supported) Additional post-processing software applications may be provided from third party suppliers.
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Simrad EK60 If you wish to connect the EK60 to the ship's network, you must implement the same security mechanisms on the EK60 computer(s) as for the rest of the network. In the tentative standard from Det Norske Veritas (DNV) - Integrated Software Dependent System (DNV-OS-D203) – this is described as a task for the network responsible person in charge of the overall behaviour of the network system.
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Simrad EK60 Spain • Company name: Simrad Spain • Address: Poligono Partida Torres 38, 03570 Villajoyosa, Spain • Telephone: +34 966 810 149 • Telefax: +34 966 852 304 • E-mail address: simrad.spain@simrad.com • Website: http://www.simrad.es USA • Company name: Kongsberg Underwater Technology Inc / Simrad Fisheries • Address: 19210 33rd Ave W, Lynnwood, WA 98036, USA • Telephone: +1 425 712 1136 • Telefax: +1 425 712 1193 • E-mail address: simrad.usa@simrad.com • Website: http://www.simrad.
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Simrad EK60 Operational procedures This chapter contains several operational procedures explaining how you can put your Simrad EK60 to use. Are there any procedures missing? Are you performing an operation that we have not explained? Write an e-mail to simrad.support@simrad.com and let us know. We may then include the procedure in the next version of this manual.
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Operational procedures Power on/off procedures These procedures explain how to switch the EK60 system on and off. Note When you power up the EK60 for the very first time, observe the procedures in chapter Installation on page 237. Make sure that you have sufficient water below the hull before you power up the EK60.
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Simrad EK60 4 Double-click the EK60 icon on the desktop to start the program. 5 Wait while the EK60 program starts on the computer. 6 Observe that the EK60 presentation fills the entire screen. 7 If the Login dialog appears, enter user name and password. 8 Once the echo sounder is running, start pinging by pressing the Start button on the toolbar. 9 Observe that the EK60 starts. The EK60 starts up using the same operational parameters as the last time you used it.
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Operational procedures Related topics • Exit on page 85 Echogram procedures These procedures explain the various parameters controlling the EK60 echogram.
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Simrad EK60 4 5 Make the desired changes. Click Ok. Related topics • Echogram view on page 58 • Bottom Range on page 149 • Surface Range on page 151 Changing the pulse duration to enhance the vertical resolution The vertical resolution of the echogram increases with a shorter pulse duration. Example 1 Vertical resolution A pulse duration of 1.024 millisecond gives a vertical resolution of 19.2 cm, whereas a pulse duration of 0.256 millisecond gives a vertical resolution of 4.8 cm.
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Operational procedures 4 Set minimum and maximum depth to the desired values. 5 Click Ok. Related topics • Depth view on page 55 • Bottom Detection on page 140 Investigating low ping rate This procedure suggests a few checks you can make if the EK60 is unable to meet your required ping interval. In some cases you may for example see a relevant message — Cannot meet ping interval requirement – that indicates that the EK60 fails to ping as fast as you have specified.
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Simrad EK60 4 Check the parameter settings for raw data storage. Remember that you can set up range parameters on the Raw data tab in the File Output dialog. → File Output on page 123 Tip This check is only useful if you have enabled raw data output to file in the Raw data tab in the File Output dialog. 5 Check the parameter settings for EK500 data output. Remember that you can set up range parameters on the Range tab in the EK500 Datagram dialog.
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Operational procedures Transceiver installation procedures Use the following procedures to install, modify or delete frequency channels from the echo sounder setup. General Purpose Transceivers (GPT) physically connected to the echo sounder's Ethernet interface are identified automatically by the system. When you open the Transceiver Installation dialog from the Install menu, a list will be provided.
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Simrad EK60 2 3 4 5 Observe that the Transceiver Installation dialog opens The purpose of the Transceiver Installation dialog is to set up the necessary parameters to connect the EK60 computer to the transceiver(s) and the transducer(s). → Transceiver Installation on page 96 In the Transceiver Installation dialog, click Browse. The EK60 will automatically search the network for transceivers. Observe that all the frequency channels are listed in the dialog.
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Operational procedures 4 Enter the new IP address. The default IP addresses are: • 18 kHz GPT: 157.237.15.3 • 38 kHz GPT: 157.237.15.5 • 70 kHz GPT: 157.237.15.7 • 120 kHz GPT: 157.237.15.8 • 200 kHz GPT: 157.237.15.9 • 333 kHz GPT: 157.237.15.10 • Computer: 157.237.15.12 In a dual frequency system the lowest frequency sets the IP address. 5 Click OK to accept the choice and exit the Transceiver Installation dialog. 6 Restart the echo sounder.
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Simrad EK60 Data recording and playback procedures These procedures explain how to save and recall raw data. Topics • Recording raw data on page 28 • Play back raw data on page 29 Related topics • File Output on page 123 • Replay on page 78 Recording raw data You can set up the echo sounder to record unprocessed transducer signals (sample data) and external sensor information onto files. These files contain the necessary information to reconstruct the situation during the real survey.
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Operational procedures • M = Ping rate in ping per seconds (User defined) • 24 = hours • 3600 = seconds per hour Thus, you can affect the amount of stored raw data by changing e.g. the range, pulse duration, and ping rate settings. Related topics • File Output on page 123 Play back raw data Procedure 1 Play back single file a Click Operation →Replay, and observe that the Replay dialog opens. b Select the single file to be played. If no file is listed, click the Add button to select.
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Simrad EK60 c Select manual parameters if required. Note If the distance from the vessel to the trawl is different from 0 (zero), you will need to enable the distance counter in the Navigation dialog. d Click Ok. e Start replay. Related topics • Replay on page 78 Noise measurements at sea The final result of the noise measurements should be a plot of the acoustic noise in front of the transducer versus vessel speed.
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Operational procedures With the settings specified below, the printer may be used to produce an echogram as documentation for all the installed transceivers. With some experience it should be possible to reveal the acoustic noise source from looking at the echogram. Typical sources may be propeller cavitation, small damages on the propeller blade, the machinery, or flow-noise. It is a good routine to save the echogram for comparison with later recordings.
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Simrad EK60 11 12 13 14 15 16 17 • Minimum level -100 dB (chosen to give a reasonable ping rate) • Maximum level -64 dB Right-click in the Echogram view, and select Range on the short-cut menu to open the Surface Range dialog. Set the following parameters: • Start relative surface: 0 m • Select a range that will provide a noise recording with at least two or three colours on the echogram.
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Operational procedures Test results Print this table, and use it to fill in the measured values.
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Simrad EK60 Example: If the desired lower TS limit is -50 dB, and at the same time a signal-to-noise ratio of 10 dB is required, the setting in the Colour Scale dialog for 40 log TVG must be -60 dB. The depth where the light grey colour appears on the echogram then indicates the maximum depth where the desired lower TS limit is obtained with a signal-to-noise ratio of 10 dB.
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Operational procedures 7 In the second confirmation dialog, click Yes to acknowledge the choice. 8 In the restart dialog, click Ok. 9 Click Operation →Exit to close the echo sounder application. 10 Restart the EK60. Related topics • Transceiver Installation on page 96 Technical information The use of the two transducers connected to the multiplexer is controlled by the Alarm output (pin 11) on the General Purpose Transceiver (GPT) Auxiliary connector.
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Simrad EK60 EK60 calibration This chapter explains how to do a single beam calibration of the Simrad EK60.
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EK60 calibration Basic information about calibration In order to maintain the accuracy provided by the Simrad EK60 and that is required for scientific applications, it must be calibrated. During calibration a reference target with known target strength is lowered into the sound beam, and the measured target strength is compared with the known target strength. If it is necessary to adjust the echo sounder, this is performed automatically by the calibration software.
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Simrad EK60 Note All transducers must be handled as delicate items. Any wrongful handling may damage the transducer beyond repair. Do not activate the transducer when it is out of the water. Do not lift the transducer by the cable. Do not step on the transducer cable. Do not handle the transducer roughly, avoid impacts. Do not expose the transducer to direct sunlight or excessive heat. Do not use high pressure water, sand blasting or metal tools to clean the transducer face.
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EK60 calibration • The sound velocity is automatically calculated by the echo sounder. • The corresponding absorption coefficient is calculated by the echo sounder according to Francois & Garrison, JASA December 1982. Note When you calculate the target strength (TS), you must use the sound velocity at the sphere's depth. 4 Use the echo sounder to check that operation in Normal mode functions properly for all transducers.
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Simrad EK60 Figure 3 Sound absorption Sound absorption (dB/km) 60 from: Francois & Garrison, JASA, December 1982 o 10 C 200 m depth pH = 8 50 35% ITY LIN A S 30 40 25 20 30 15 10 20 5 10 0 0 0 25 (CD010014A) 50 75 100 125 Frequency (kHz) 150 175 200 Anchoring The following rigging description is to a great extent reproduced from ICES report 144. 1 Find a location with calm and sheltered water.
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EK60 calibration If the vessel is anchored or moored only fore or aft, the wind will cause it to drift sideways. If the current then attacks with a different angle, it will make a bad situation even worse. If the vessel is allowed to move sideways, or if the current runs abeam, this will normally give larger variations in the echo sounder performance. This results in poor and not reliable calibration accuracy.
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Simrad EK60 Figure 4 Rigging the vessel for sphere calibration (CD010014C) WINCH 1 WINCH 3 WINCH 2 Each winch must be provided with a long spool of 0.60 mm diameter monofilament nylon line, which is marked with small swivels at 5 m intervals, beginning 10 m from the loose end.
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EK60 calibration the line must be at least two pulse lengths, so that the echo from the additional weight does not interfere with the sphere echo. Immerse the sphere in a solution of dishwasher detergent and freshwater and lift it overboard by the fastened lines without touching it. The soap helps to eliminate air bubbles attached to the sphere. Lowering the sphere Lower the sphere beneath the vessel to the desired depth, for example 25 m, which is determined roughly by counting the swivels on each line.
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Simrad EK60 Table 1 Copper spheres (cont'd.) Frequency (kHz) Diameter (mm) Target strength (dB) 710 10,3 –50,5 Target strength calculated for sound speed 1490 m/s. The same sphere is used for 49 and 50 kHz. The curve for the 38 kHz sphere is given as an illustration. Figure 5 Target strength of a 60 mm copper sphere -33.0 60 mm copper sphere, 38 kHz 1400 3.0 0.3 (CD010014D) -34.5 Target strength (dB) -34.0 -33.
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EK60 calibration c:\er60\calibration\2003\38kHz\0.256msec\ The same structure can be repeated for the different pulse duration for each frequency. When you save the calibration file, create a file name that includes the current date and the current output power. Save the information as a TXT file. Example: ....\0.256msec\cal010603-2000w.txt While the calibration takes place, we recommend that you also collect a raw data file. Browse the file directory in the Store dialog to locate the correct directory.
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Simrad EK60 10 Enter the following data in the Record dialog: a Transducer’s serial number b Correct theoretical target strength (TS) for the reference target c Allowed deviation from the TS for the reference target • This is a window giving the limits for the system’s acceptance of single target echoes coming from fish. The closer to the correct reference target TS the limits have been set, the more of the unwanted fish echoes will be rejected.
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EK60 calibration 5 6 7 When you have finished data recording, click File →Save As to open the Save As dialog. Choose the directory where you want the calibration file to be saved, and enter a file name for your calibration file. Click Save to finish. The calibration program will now use two different models to fit recorded data, a polynomial model and a beam model. The Plot view will plot the model along with the recorded data points.
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Simrad EK60 of the transducer is inversely connected, the beamwidth will be approximately one degree too wide, the offset angles will be approximately one degree off centre in both directions and the calibrated gain can be in the order of 6 dB lower than the default gain. If two of the quadrants have been mixed up, the reference sphere’s movements inside the beam will be incorrect. This can be confirmed when the reference sphere is suspended in such a way that you can move it in a specific direction.
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EK60 calibration Updating transducer parameters When you are satisfied with the calibration results you can use the results to update your transducer parameters in the echo sounder. 1 In the Calibration window, click File →Update Beam Data to perform this task. Note This is a serious operation, which will affect the transducer installation parameters and will thus affect all future results to be obtained using the current transducer and pulse duration.
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Simrad EK60 Display views This chapter provides a brief overview of the information displayed by the Simrad EK60, and how the information is organized.
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Display views Display organization The EK60 display is organized as follows (from top): • Main menu • Toolbar • A number of Channel Windows • Status bar A display with three channels windows (operating three echo sounder frequencies simultaneously) is shown as an example.
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Simrad EK60 Main menu The EK60 main menu is located at the top of the echo sounder window. To operate, click on the menu name and observe the drop-down menu. Select a new item on the drop-down menu by clicking on the command. Commands shown with light grey colour are unavailable in the present configuration or operational mode. A detailed description of the commands available from the main menu is given in the Reference section.
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Display views Table 2 Easy operation toolbar Tool bar button Equivalent Dialog Start pinging [►] Start Ping control Perform single ping [►1] Single step Ping control Stop pinging [●] Stop Ping control Set ping rate Ping rate Ping control Start raw data recording [►] Start recording File output Stop raw data recording [●] Stop recording File output Initiate annotation [A] Annotation text input Annotation Generate event [E] Annotation text input Annotation Table 3 Normal operati
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Simrad EK60 • Distance in nautical miles or meters • Geographical position • Recording status • Date and time Choose to display local or GMT time using the Local Time function on the Options menu. • Warning messages The Warnings field on the far right side of the status bar is a button. When a warning has been issued, the button will be lit with a colour and a text indicating the nature of the message. To investigate further, click the button.
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Display views Depth view (CD010012B) The Depth view comprises the horizontal view directly below the toolbar. The view displays the current depth. If you click the right mouse button with the cursor position within this view, a dedicated short-cut menu will appear. If you press the middle mouse button, the Bottom Detection dialog will open.
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Simrad EK60 Single target position view The Single target position view is normally located in the top left corner. This view shows the position within the beam of the detected single echoes for the current ping (largest circles) and the three previous pings (smaller circles), all in the active layer. The colours used to display this information are determined from current target strength (TS) value and the settings in the colour scale.
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Display views Single target histogram view The histogram plot shows a visualisation of the target strength (TS) distribution for the single echoes detected in the Echogram view. The colours used to display this information are determined from the current target strength (TS) value and the settings in the colour scale. The statistics are based on the active layer and the current calculation interval.
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Simrad EK60 Echogram view The Echogram view will normally dominate each channel window on the echo sounder display. The echogram contains information about the acoustical values. The settings in the colour scale is used to present the information. 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 dialog defines which information that will be shown.
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Display views Scope view The Scope view is normally located on the right side of the Echogram view. The Scope view provides a logarithmic oscilloscope visualization of the last ping. The presentation corresponds to the current settings in the Echogram view. The view draws a range of horizontal symmetrical colour lines. The distance from the vertical centre axis and the line colour reflects the received echo scatter.
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Simrad EK60 Colour scale view The Colour scale 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 not necessarily correct.
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Display views Numerical view The Numerical view is normally located on the far right side of the display. The Numerical view provides listing with all the various parameters applicable for the current mode and operation.
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Simrad EK60 The menu system The menu navigation employed by the Simrad EK60 is similar to other Windows-based software. Main menu topics located in the menu bar at the top of the window provide access to drop-down menus. Menu choices that are shown in grey are not available for the current operation or operational mode. Several parameters are also available using short-cut menus accessed by clicking the right mouse button. For more specific menu information refer to the menu descriptions listed below.
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The menu system Operation menu The following functions and parameters are available from the Operation menu. 1 Normal (operation) The purpose of the Normal Operation dialog is to offer you an overview of the current transceiver parameters, and to provide you with the ability to change them. → Normal Operation on page 76 2 Replay The purpose of the Replay dialog is to choose the file(s) to be used for playback.
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Simrad EK60 View menu The following functions and parameters are available from the View menu. 1 Toolbars The Toolbars function allows you to show or hide the toolbars. → Toolbars on page 86 2 Status Bar The Status Bar function allows you to show or hide the Status Bar. → Status Bar on page 87 Options menu The following functions and parameters are available from the Options menu. 1 Colours The purpose of the Colour dialog is to control the presentation colours used by the EK60.
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The menu system 6 Save Settings The Save Settings dialog is save operational settings. → Save Settings on page 94 Install menu The following functions and parameters are available from the Install menu. 1 Transceiver (Installation) The purpose of the Transceiver Installation dialog is to set up the necessary parameters to connect the EK60 computer to the transceiver(s) and the transducer(s).
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Simrad EK60 7 Remoting The Remoting dialog allows you to control the remotely controlled operation of the EK60, both how the EK60 can be controlled from a peripheral system, and how the EK60 can export information to this system. → Remoting on page 113 8 Users and Passwords The Users and Passwords dialog is used to add and remove users, and to set and edit user properties and passwords.
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The menu system Window menu The following functions and parameters are available from the Window menu. 1 New Channel The New Channel function is used to display a new channel window. This can either be a new frequency channel, or a new view of an existing frequency channel. → New Channel on page 132 2 Cascade The Cascade function is used to place the open channel windows partly over each other. → Cascade on page 133 3 Tile The Tile function is used to display a new channel window.
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Simrad EK60 Shortcut menus The following functions and parameters are available from the short-cut menus. The short-cut menus are opened by clicking the right mouse button when the cursor is located in any of the views. Various menus are provided depending on the current view. To make a choice, click on the menu name and observe the drop-down menu. Select a new item on the drop-down menu by clicking the relevant option.
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The menu system Single Target Position short-cut menu The Single Target Position short-cut menu allows you to control the properties of the Single Target Position view. It also provides common functionality related to printing and window configuration. 1 Single Target Detection The Single Target Detection dialog is used to set the operational parameters for detecting single targets.
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Simrad EK60 2 Single Target Detection The Single Target Detection dialog is used to set the operational parameters for detecting single targets. → Single Target Detection on page 141 3 Colour Scale The purpose of the Colour Scale dialog is to change the dynamic range of the colour scale. → Colour Scale on page 143 4 Print The Print dialog allows you to print the current view.
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The menu system 3 Range The Bottom Range dialog is used to specify the vertical depth range for the Echogram view in bottom related echograms. The Surface Range dialog is used to specify the vertical depth range for the Echogram view in surface related echograms. → Bottom Range on page 149 → Surface Range on page 151 4 New layer The New Layer dialog is used to insert a new vertical layer.
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Simrad EK60 2 Print Preview The Print Preview dialog allows you check the printout before you send the job to the printer. → Print Preview on page 157 3 Configure Window The Configure Window dialog is used to define which views to show in the active window. → Configure Window on page 158 4 Hide View The Hide View function hides the view from which the command was chosen.
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The menu system Numerical short-cut menu The Numerical short-cut menu allows you to control the properties of the Numerical view and the current layers. It also provides common functionality related to printing and window configuration. 1 Numerical View The Numerical View dialog is used to select which information is displayed in the Numerical view. → Numerical View on page 156 2 New layer The New Layer dialog is used to insert a new vertical layer.
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Simrad EK60 Functions and dialogs This chapter presents a detailed description of each function and dialog used by the EK60. Whenever applicable, references are made to the Operational procedure chapter. You do not need to have an in-depth knowledge of these dialogs to use the EK60. The information in this chapter is for reference only.
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Functions and dialogs Operation menu; functions and dialogs The following functions and parameters are available from the Operation menu. 1 Normal (operation) The purpose of the Normal Operation dialog is to offer you an overview of the current transceiver parameters, and to provide you with the ability to change them. → Normal Operation on page 76 2 Replay The purpose of the Replay dialog is to choose the file(s) to be used for playback.
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Simrad EK60 Normal Operation The Normal Operation dialog is opened from the Operation menu. Purpose The purpose of the Normal Operation dialog is to offer you an overview of the current transceiver parameters, and to provide you with the ability to change them. Description The Normal Operation dialog lists all the main parameters for the transceiver(s). The dialog provides one row (line) for each transceiver in use.
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Functions and dialogs Tip If you wish to investigate the ambient noise, choose Passive mode in the Normal Operation dialog. Any noise or disturbance in the water – within the transducer's frequency range – will then be detected and shown. This feature will for example be able to pick up disturbances from other hydroacoustic systems on your own vessel, or on other vessels in the vicinity. c Test The transmitter is passive while the receiver is active.
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Simrad EK60 4 Power This parameter displays and controls the transmitter’s output power. Output power is limited either to the maximum rating of the transducer, or the maximum rating of the transmitter, whichever is the smallest. 5 Depth This is the depth of the transducer face relative to the water surface. In order to measure correct water depth, the EK60 needs to know the vertical distance between the vessel’s water line and the acoustic face of each transducer.
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Functions and dialogs Description The EK60 is provided with a few example files for playback. You can also create files by means of the recording function on the EK60. The dialog allows you to add one or more files to a the list of active files for playback. You can click Loop to have a continuous playback with the file(s) you have chosen. To delete a file from the playback list, simply click the file name, and then the Remove button. The file is removed from the list, but not from the hard disk.
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Simrad EK60 Ping Control The Ping Control dialog is opened from the Operation menu. Purpose The dialog Ping Control is used to control the EK60 pinging during both normal and replay operations. Description All settings in this dialog take immediate action. Note that the majority of operations carried out in this dialog can also me made on the toolbar. • In Maximum mode, click the Start button to start pinging. This operation will toggle the button text to Stop, which you can click to stop pinging.
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Functions and dialogs Numerous parameter settings on your EK60 system may also reduce the ping rate. If the ping rate is slow, you should check if the bottom detection settings are set to match the actual depth. If you export depth data, you must also check that these parameters match the current depth. b Single step This option allows the EK60 to transmit single pings. To transmit a single ping, click the button on the Easy operation toolbar.
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Simrad EK60 Data Source The Data Source dialog is opened from the Operation menu. The functions provided are only applicable on peripheral computers that are remotely connected to the EK60 system computer (server) using the ship’s local area network (LAN). Purpose This Data Source dialog is used to set up the EK60 to be controlled from a peripheral computer on the ship’s local area network.
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Functions and dialogs Parameters 1 Name This column displays the installation name of the echo sounder program entry. An asterisk (*) in front of an entry means that this entry is currently selected data source. Only one entry can be selected at a time. The installation name is defined in the Remoting dialog. 2 Description This column displays a short description of this program. The description is also defined in the Remoting dialog.
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Simrad EK60 Log In The Log In dialog is opened from the Operation menu. The dialog will also appear automatically when you switch on the echo sounder. Purpose The Log In dialog allows you to log in as a user of the EK60 program. The user name must exist on the computer for the log in to succeed. Description Enter user name and password. Click to enable Auto login if you want to log in automatically when the sounder software is started, and thus bypass this dialog.
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Functions and dialogs Log Out The Log Out function is opened from the Operation menu. Purpose The Log Out dialog allows you to log out of the EK60 program. Description Click Operation →Log Out. Related topics • Log In on page 84 • Users and Passwords on page 117 Exit The Exit function is activated from the Operation menu. Purpose Use this option to close the EK60 application. Description Click File →Exit. Note that when you exit the EK60, the program closes down just like any other standard application.
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Simrad EK60 View menu; functions and dialogs The following functions and parameters are available from the View menu. 1 Toolbars The Toolbars function allows you to show or hide the toolbars. → Toolbars on page 86 2 Status Bar The Status Bar function allows you to show or hide the Status Bar. → Status Bar on page 87 Toolbars The Toolbars function is opened from the View menu. Purpose The Toolbars function allows you to show or hide the toolbars.
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Functions and dialogs Table 6 Normal operation toolbar Tool bar button Equivalent Dialog Select channel — — Select mode Mode Normal Operation Parameters 1 Easy Operation Click to enable or disable the Easy Operation toolbar. 2 Normal Operation Click to enable or disable the Normal Operation toolbar. Important The Normal operation toolbar is not available during replay.
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Simrad EK60 • Current vessel roll in degrees • Current vessel heave in meters • Event number • Current heading • Current vessel speed in knots • Distance in nautical miles or meters • Geographical position • Recording status • Date and time Choose to display local or GMT time using the Local Time function on the Options menu. • Warning messages The Warnings field on the far right side of the status bar is a button.
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Functions and dialogs Options menu; functions and dialogs The following functions and parameters are available from the Options menu. 1 Colours The purpose of the Colour dialog is to control the presentation colours used by the EK60. → Colours on page 89 2 Tooltip The Tooltip dialog is used to select which information you wish to have displayed as “tool tips” (information displayed next to the cursor) in the different views.
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Simrad EK60 Description The Colour Setup dialog provides three fields. • The No. of Colours field allows you to choose how many colours you wish to use. • The Colour Scale field allows you to choose which colour scale to use. • The Palette field is used to select the overall colour theme used by the EK60 presentation. Do not confuse this dialog with the Colour Scale dialog! Parameters 1 No. of Colours Set the number of colours to use in the display presentations, 12 or 64.
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Functions and dialogs • Colour Scale on page 143 Tooltip The Tooltip dialog is opened from the Options menu. Purpose The Tooltip dialog is used to select which information you wish to have displayed as “tool tips” (information displayed next to the cursor) in the different views. Description Click Options →Tooltip, and make the necessary changes. Each view has its own set of parameters which can be switched on or off.
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Simrad EK60 Description The biomass and size distribution values are calculated based on the echo data collected by the EK60. Using the Calculation Interval functionality, you can limit the source data used by these calculations. You can thus specify if you wish to base the calculations on data collected during a give timeframe, from a defined number of pings, or from the data used to create a portion of the current echogram view.
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Functions and dialogs Description Whenever raw data is recorded, the GMT time of the recording is included in the files. In addition to that, an offset value is recorded. This offset identifies the difference between the GMT time and the local time shown on the EK60 computer during the recording. During playback, you can choose if you wish to see the time of recording (GMT) or the local time in the Status Bar.
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Simrad EK60 3 Delete File Select a setting file, then click this button to delete the file from the hard disk. Related topics • Options menu; functions and dialogs on page 89 • Save Settings on page 94 Save Settings The Save Settings dialog is opened from the Options menu. Purpose The Save Settings dialog is save operational settings. Description Click Options →Save Settings. Type a name for the file to contain the current settings, then click OK.
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Functions and dialogs Install menu; functions and dialogs The following functions and parameters are available from the Install menu. 1 Transceiver (Installation) The purpose of the Transceiver Installation dialog is to set up the necessary parameters to connect the EK60 computer to the transceiver(s) and the transducer(s).
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Simrad EK60 8 Users and Passwords The Users and Passwords dialog is used to add and remove users, and to set and edit user properties and passwords. → Users and Passwords on page 117 9 Port Management The Port Management dialog allows you to control the properties of each of the available communication channels on the EK60 computer. → Port Management on page 118 Transceiver Installation The Transceiver Installation dialog is opened from the Install menu.
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Functions and dialogs Tip On the EK60, the parameters related to transmission and transducer depth are controlled in the Normal Operation dialog. → Normal Operation on page 76 Each transceiver contains one or more frequency channels. This phrase is used to identify the combination of a transceiver, transducers and the frequencies offered. Split beam transceivers contain only one channel each.
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Simrad EK60 Parameters 1 Frequency Channel Selection a Transceiver type This is the type of transceiver currently available on the network. GPT means General Purpose Transceiver. b Frequency This is the operational frequency of the transceiver. c Ethernet address This is the Ethernet address of the transceiver. This address is fixed, and it can not be changed.
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Functions and dialogs Parameters 1 Transducer The left spin-box is not used on the General Purpose Transceiver (GPT). The right spin-box is used to select transducer. The transducer must be registered in the EK60 software to appear on this list. If you can not find your transducer on the list, contact you dealer to upgrade the relevant software component on the EK60.
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Simrad EK60 Parameters 1 Local IP Address This is the Internet Protocol (IP) address of the local Ethernet interface board. If you have more than one interface board, you are provided with a list of the available addresses. Important The Ethernet board used to communicate with the EK60 transceiver(s) must be set up in the same address range as the transceiver(s). Use the following Internet Protocol (IP) addresses on the computer’s Ethernet board: IP Address: 157.237.15.12 Subnet mask: 255.255.255.
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Functions and dialogs Navigation The Navigation dialog is opened from the Install menu. Purpose The Navigation dialog controls how the EK60 receives information from external peripherals, such as navigation and gyro compass systems. Description Several external sensors (GPS navigation, gyro compass etc.) can be connected to the EK60 to provide information about the vessel's speed, position, heading and sailed distance. The EK60 must be set up to receive this information.
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Simrad EK60 Navigation; Position tab The parameters on this Navigation tab allows you to control the interface with external positioning sensors. These are typically GPS systems providing their data on a serial line or by means of the local area network. The information from the GPS system provides the position information on the EK60 Status bar. Parameters 1 Port Select which serial or Ethernet port to use for this communication.
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Functions and dialogs 4 Talker ID If you wish to specify a dedicated Talker ID on the telegram format, it can be selected here. The Talker ID is the first two characters in the NMEA sentence. Select None to accept all talker identifiers.
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Simrad EK60 b VBW This telegram contains the compass heading to which the vessel points and the speed of the vessel relative to the water. → VBW Dual ground and water speed on page 182 c VTG This telegram contains the actual course and speed relative to the ground. → VTG Course over ground & ground speed on page 183 d RMC This telegram contains time, date, position, course and speed data provided by a global navigation satellite system (GNSS) receiver.
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Functions and dialogs a None No distance information is accepted. b Speed The distance information is calculated using the speed information received by the echo sounder. If will always start with the previously calculated distance. If you need to reset this to zero (or any other value), use the Distance parameter. c Datagram The distance information is received using appropriate datagram(s) from an external source.
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Simrad EK60 • Telegram formats on page 174 Navigation; Heading tab The parameters on this Navigation tab allows you to control the interface with external heading sensors. These are typically GPS systems or dedicated gyro or compass systems providing their data on a serial line or by means of the local area network. The information from the heading sensor provides the heading information on the EK60 Status bar. Parameters 1 Port Select which serial or Ethernet port to use for this communication.
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Functions and dialogs e VHW This telegram contains the compass heading to which the vessel points and the speed of the vessel relative to the water. → VHW Water speed and heading on page 183 4 Talker ID If you wish to specify a dedicated Talker ID on the telegram format, it can be selected here. The Talker ID is the first two characters in the NMEA sentence. Select None to accept all talker identifiers.
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Simrad EK60 If you choose to use the analogue input on a General Purpose Transceiver (GPT), the Setup button allows you to open a dedicated dialog to control the sensitivity and offset. If the Setup button is unavailable, click Normal →Normal Operation to activate the transceiver. Parameters 1 Port Select which serial or Ethernet port to use for this communication. You can also choose to use the analogue input on a General Purpose Transceiver (GPT). A list of the transceivers is provided in the drop-box.
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Functions and dialogs Trawl The Trawl dialog is opened from the Install menu. Purpose The Trawl dialog allows you to enter the main parameters related to the trawl. Trawl information is used for display of upper and lower trawl line in the echogram. All received speed data are stored to file when recording of raw data to file is enabled. Description A Simrad ITI (Integrated Trawl Instrumentation) system can be connected to the EK60.
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Simrad EK60 2 Setup Once you have selected a serial or Ethernet communication port, click this button to set up the applicable port parameters. The relevant port setup dialog opens. → Serial Port Setup on page 169 → LAN Port Setup on page 168 3 System Select one of the supported systems. a ITI b PI c Ifremer Other third party systems are not supported. 4 Trawl Opening A fixed headrope-to-footrope distance can be manually entered.
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Functions and dialogs Description In order to obtain accurate depth readings and fish echoes, it is very important that the sound speed through the water is set correctly. In the Environment dialog, you must define if you work in salt or fresh water. If the sound speed is unknown, use the default setting 1494 m/s, as this is a typical mean value. Parameters 1 Temperature Enter the temperature if this is known to you. To find this temperature, you will need a dedicated instrument.
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Simrad EK60 Annotation The Annotation dialog is opened from the Install menu. Purpose The purpose of the Annotations dialog is to allow you to enter comments and annotations into the echograms. Description Several different annotation types may be added to the echogram. The annotations defined are stored with the raw data as annotation datagrams. They are displayed on the echogram if this feature is enabled in the Echogram dialog.
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Functions and dialogs 3 Event This function initiates annotations whenever an event occur. Events may be triggered by external devices, set by a timer, or initiated by clicking the Event button on the toolbar. a Number All events are identified with a number. This number can be included in the annotation string. Using this feature, you can manually select the next number to be used, and you can choose to have the number series decrease instead of increasing.
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Simrad EK60 Description The EK60 software and computer can function as a data server for client applications running on peripheral computers connected to the local area network (LAN). In this case data are transferred as UDP packets from and to the EK60 server using an Ethernet adapter with a specific IP address. The Server tab is only used if you want to set up and use the EK60 computer as a server for such client applications.
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Functions and dialogs 2 Local port (UDP) This port is important if you wish to receive information. It must match the port number on the remote computer. To find the port number on the remote computer, consult the documentation for the software utility to be used. If the data communication is set up to only transmit information from the EK60, this parameter is not required. 3 Name This is the name of your product (EK60). The name is fixed, and you are not permitted to change it.
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Simrad EK60 Normally the client broadcasts a message to obtain information on applications running on the local area network. A list of these programs is displayed when the Data Source dialog is opened. In some network configurations broadcasting is not a practical solution, and in these cases the communication mode can be changed from broadcast to point-to-point and a specific remote IP address for the server which you want to connect to can be set.
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Functions and dialogs Users and Passwords The Users and Passwords dialog is opened from the Install menu. Purpose The Users and Passwords dialog is used to add and remove users, and to set and edit user properties and passwords. Description To prevent unintentional operation of the echo sounder the “user” concept is introduced.
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Simrad EK60 3 Remove Click to delete the currently select user. 4 Properties Click to modify the properties of the currently select user. The User Properties dialog appears. It allows you to change the description, access level and password. Related topics • Install menu; functions and dialogs on page 95 • Add User Account on page 160 • Log In on page 84 • Log Out on page 85 • User Properties on page 160 Port Management The Port Management dialog is opened from the Install menu.
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Functions and dialogs Description The EK60 software automatically scans the computer to locate and identify Ethernet (LAN) and serial line interfaces. Once the software has established a list of valid interfaces, you can set up and control the parameters. The Port Management dialog provides two lists, one for serial ports and one for Ethernet (LAN) ports.
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Simrad EK60 2 Name This is the given identity of the serial port. By default, the serial ports are numbered. 3 Resource This is the communication port on the EK60 computer. These are normally named COM1, COM2 etc. 4 Baudrate This cell shows the current baudrate specified for the serial line. Standard baudrate defined for NMEA communication is 4800 baud. 5 Data bits This column specifies the number of data bits used in the serial line communication.
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Functions and dialogs 11 Setup In order to use a serial line to receive or transmit information, its communication parameters must be set up to match the properties of the peripheral device. Click one of the listed ports to select it, then click the Setup button to set up the port parameters. A dedicated dialog is provided. → Serial Port Setup on page 169 12 Monitor If you suspect that the communication on the port is ineffective, faulty or missing, you can monitor the flow of telegrams.
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Simrad EK60 7 Protocol This is the current protocol specified for the LAN port. Each LAN port can receive multiple telegrams simultaneously, provided that the telegrams all use the same protocol. 8 Sensor This column is used to identify the external sensor currently connected to the local area network communication. 9 Add Click this button to add a new LAN (Ethernet) port. This is required if you have added new hardware to the computer, for example by installing an extra Ethernet interface board.
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Functions and dialogs Output menu; functions and dialogs The following functions and parameters are available from the Output menu. 1 File (Output) The File Output dialog is used to specify which output you wish to save to a data file, and in which disk directory the data file(s) shall be placed. → File Output on page 123 2 Ethernet (Output) The purpose of the Ethernet Output dialog is to define the communication parameters for the EK500 datagram output on the Ethernet port.
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Simrad EK60 3 Processed Data Use this tab to set up the EK60 to export EK500 datagrams to file, and choose which information be included in the saved file. → File Output; Processed Data tab on page 126 Related topics • Recording raw data on page 28 • Replay on page 78 • EK500 Datagram on page 162 • HAC Datagram on page 166 File Output; Directory tab Use the parameters in this dialog to define where (on which disk and folder) the raw data files shall be stored.
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Functions and dialogs File Output; Raw Data tab Use this tab to save raw data files, to control their sizes, and to specify automatic start of the recording. Raw data files can be recorded by the EK60 and stored to file. These raw data files can later be replayed by the EK60 for further analysis. Each raw data file name has the following format: PREFIX DYYYYMMDD THHMMSS Parameters 1 General a Save Raw Data Check this box to save raw data to file. b File Name Prefix Type any name into the text box.
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Simrad EK60 File Output; Processed Data tab Use this tab to set up the EK60 to export EK500 datagrams to file, and choose which information be included in the saved file. Data processed by the EK60 data can also be exported to a file. To support programs using data from the Simrad EK500 echo sounder, the EK60 can output EK500 defined datagrams on an Ethernet (LAN) output. These datagrams can also be recorded onto a file. Parameters 1 Save EK500 Check this box to choose to save EK500 datagrams to file.
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Functions and dialogs Ethernet Output The Ethernet Output dialog is opened from the Output menu. Purpose The purpose of the Ethernet Output dialog is to define the communication parameters for the EK500 datagram output on the Ethernet port. Description To support programs which use data from the Simrad EK500 echo sounder, the EK60 can output a subset of the EK500 defined datagrams. This dialog allows you to enable or disable the EK500 datagram output to the Ethernet port.
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Simrad EK60 3 Local IP Address This is the Internet Protocol (IP) address of the local Ethernet interface board. In most cases, each Ethernet board has a unique IP address, even when an interface board supports multiple sockets. If you have more than one interface board, you are provided with a list of the available addresses. 4 Remote port (UDP) Specify the local network port. The EK60 uses this network port to transmit information.
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Functions and dialogs Description This dialog allows you to define which port (serial or Ethernet) to use for depth output, and which format to use. You can set up the EK60 to export the depth information on more than one port. The EK60 may output the current depth on several NMEA datagram formats, as well as a number of proprietary formats.
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Simrad EK60 c DBT This telegram contains the actual depth below the transducer face. → DBT Depth below transducer on page 178 d DPT This telegram contains the actual depth. → DPT Depth on page 178 e Simrad This proprietary Simrad EK500 depth telegram contains the current depth from three channels. → Simrad EK500 Depth telegram on page 185 f Atlas This proprietary Atlas depth telegram contains the current depth from two channels.
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Functions and dialogs • Serial Port Setup on page 169 • Telegram formats on page 174 • About the NMEA telegram format on page 174 164692/D 131
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Simrad EK60 Window menu; functions and dialogs The following functions and parameters are available from the Window menu. 1 New Channel The New Channel function is used to display a new channel window. This can either be a new frequency channel, or a new view of an existing frequency channel. → New Channel on page 132 2 Cascade The Cascade function is used to place the open channel windows partly over each other. → Cascade on page 133 3 Tile The Tile function is used to display a new channel window.
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Functions and dialogs Click Operation →New Channel. Select channel from the sub-menu presenting the different transceiver/transducer channels installed on the echo sounder. Note Sampling, data storage or data output from a frequency channel is not influenced by opening or closing channel windows. However, the maximum available ping rate may be affected by the range settings in a channel window.
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Simrad EK60 Tile The Tile function is opened from the Window menu. Purpose The Tile function is used to display a new channel window. This can either be a new frequency channel, or a new view of an existing frequency channel. Description This function is identical to the common function available in the operating system. The active windows are presented tiled; that is reduced in size and automatically fitted next to each other.
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Functions and dialogs Close All The Close All function is opened from the Window menu. Purpose The Close All function is used to close all open channel windows. Description All windows are closed automatically. To create a new window, click New channel on the Window menu. To open all existing windows, click Open All on the Window menu.
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Simrad EK60 Help menu; functions and dialogs The following functions and parameters are available from the Help menu. 1 Contents Use the Contents function option to open the first page of the context sensitive on-line help system. → Contents on page 136 2 About ER60 The About dialog allows you to see the current EK60 software version. → Status Bar on page 87 Contents The Contents function is opened from the Help menu.
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Functions and dialogs Description Every EK60 software release is uniquely identified. The About dialog identifies the EK60 software release.
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Simrad EK60 Short-cut menus; functions and dialogs The following functions and parameters are available from the short-cut menus. The short-cut menus are opened by clicking the right mouse button when the cursor is located in any of the views. Various menus are provided depending on the current view. To make a choice, click on the menu name and observe the drop-down menu. Select a new item on the drop-down menu by clicking the relevant option.
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Functions and dialogs 7 Range The Bottom Range dialog is used to specify the vertical depth range for the Echogram view in bottom related echograms. The Surface Range dialog is used to specify the vertical depth range for the Echogram view in surface related echograms. → Bottom Range on page 149 → Surface Range on page 151 8 New layer The New Layer dialog is used to insert a new vertical layer.
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Simrad EK60 Bottom Detection The Bottom Detection dialog is opened from the Depth short-cut menu. Purpose The purpose of the Bottom Detection dialog is to define the upper and lower depth limits most likely to be used during the EK60 operation. In this dialog, you can also modify the setting for Backstep Min. Level to change the bottom detection relative to the bottom echo. Description The Bottom Detection dialog provides separate limits for minimum and maximum depth.
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Functions and dialogs The Backstep Min. Level parameter allows you to manually modify where on the bottom pulse the depth shall be detected. The setting does not have an effect on the EK60's ability to detect and track the bottom.
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Simrad EK60 Description Several specific parameters are available for studies of single fish. In order to detect single fish correctly, these parameters must be defined to suit the target characteristics. Parameters 1 Min. Threshold (dB) The target strength for a single target must exceed this threshold to be accepted. 2 Min. Echo Length For a single target detection to occur the normalized echo length must exceed this parameter. 3 Max.
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Functions and dialogs Colour Scale The Colour Scale dialog is opened from the Single Target Position, Single Target Histogram and Colour Scale short-cut menus. Purpose The purpose of the Colour Scale dialog is to change the dynamic range of the colour scale. Description The total number of colours used in the presentation will be distributed between the minimum and maximum levels identified in this dialog.
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Simrad EK60 • Single target position view on page 56 • Colours on page 89 Histogram The Histogram dialog is opened from the Single Target Histogram short-cut menu. Purpose This Histogram dialog is used to set parameters for the histogram displayed in the Single Target Histogram view. Description Right-click in the Single Target Histogram view to open the short-cut menu. Click Histogram on the menu, and make the necessary adjustments. Parameters 1 Max.
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Functions and dialogs 2 Lines The Lines tab in the Echogram dialog allows you to control the horizontal and vertical lines used to enhance the echogram presentation. You can add a bottom line, and you can enable a white line to enhance the presentation. The tab also offers a trawl line, and you can choose the vertical scale of the echogram. Finally, the Lines tab offers time or distance markers, and you can enable annotations.
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Simrad EK60 • Bottom Range on page 149 Echogram; Lines tab The Lines tab in the Echogram dialog allows you to control the horizontal and vertical lines used to enhance the echogram presentation. You can add a bottom line, and you can enable a white line to enhance the presentation. The tab also offers a trawl line, and you can choose the vertical scale of the echogram. Finally, the Lines tab offers time or distance markers, and you can enable annotations.
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Functions and dialogs To set up an interface port to communicate with the PI and ITI system(s), use the Port Monitor dialog. → Trawl on page 109 → Port Management on page 118 The Trawl echogram is only drawn when trawl position information is available. 3 Scale When enabled, 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 selected.
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Simrad EK60 Echogram; Pixels tab The Pixels tab in the Echogram dialog 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.
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Functions and dialogs Description The Horizontal Axis dialog allows you to choose the horizontal scale of the echogram. This controls how “fast” the echogram moves from right towards left across the display. Parameters 1 Horizontal Axis You can set up the horizontal speed based on four parameters. • Distance The horizontal scale of the echogram is based on sailed distance. Choose resolution and units with the spin boxes provided. • Time The horizontal scale of the echogram is based on time.
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Simrad EK60 Description The parameters defined in this dialog are only implemented for bottom related echograms. The dialog title and the range settings will be surface related if the dialog is opened in a surface referenced echogram. See Surface Range on page 151 for more information. The dialog title and the range settings will be bottom related if the dialog is opened in a bottom referenced echogram.
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Functions and dialogs 3 Apply to all Check this box to apply the new range setting to all current bottom echograms. Related topics • Echogram view on page 58 • Surface Range on page 151 • Echogram on page 144 • EK500 Datagram on page 162 Surface Range The Surface Range dialog is opened from the Echogram short-cut menu. Purpose The Surface Range dialog is used to specify the vertical depth range for the Echogram view in surface related echograms.
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Simrad EK60 Tip Many users prefer to use two channel windows for each echo sounder frequency. One channel window is then used for a surface related echogram using a large range, while the other presents a bottom related echogram to study the area close to the seabed. 2 Range This parameter controls the depth range. 3 Apply to all Check this box to apply the new range setting to all current surface echograms.
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Functions and dialogs a Start Relative Surface This parameter controls the depth at the upper boundary of the layer, relative to the surface depth depending on the selected layer type. b Start Relative Bottom This parameter controls the depth at the upper boundary of the layer, relative the detected bottom depth depending on the selected layer type. c Range This parameter controls the vertical depth range for the layer. Please note that positive is always downwards.
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Simrad EK60 Layer Properties The Layer Properties dialog is opened from the Echogram and Numerical short-cut menus. Purpose The Layer Properties dialog is used to edit the properties for the active layer. Description Layers are used to calculate various values for a specific range in the water column. The calculated values can be displayed in the Numerical view.
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Functions and dialogs c Bottom The range settings for the layer are referenced to the bottom. The layer is downwards limited by the detected bottom depth. 3 Integration a Targets Integration Check this box to calculate integration values based on single target detections. Compared with the normal integration (sA) this value can be used to get an idea of how much of the biomass has been detected as single targets.
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Simrad EK60 Numerical View The Numerical View dialog is opened from the Numerical short-cut menu. Purpose The Numerical View dialog is used to select which information is displayed in the Numerical view. Description Right-click in the Numerical view to open the short-cut menu. Click Numerical on the menu. Check the boxes in front of the information you wish to see. For additional information about the alternatives, see the Numerical view description in section Numerical view on page 61.
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Functions and dialogs 2 Properties If necessary, click this button to modify the printer properties. Related topics • Print Preview on page 157 Print Preview The Print Preview dialog is opened from all the short-cut menus. Purpose The Print Preview dialog allows you check the printout before you send the job to the printer. Description This is a standard operating system dialog. The appearance may differ between the operating systems, and the text will be in the operating system’s language.
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Simrad EK60 4 Close Click this button to close the Print Preview dialog. 5 Select page This spin box allows you to print a selected page from a multiple page document. Note This function is not available on the EK60. Related topics • Print on page 156 Configure Window The Configure Window dialog is opened from all the short-cut menus. Purpose The Configure Window dialog is used to define which views to show in the active window.
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Functions and dialogs Secondary functions and dialogs The dialogs described in this section are all opened from within the other EK60 dialogs. They are thus not opened directly from the menu system. 1 Add User Account The Add User Account dialog is used to enter user information when a new user is added to the program. → Add User Account on page 160 2 User Properties The User Properties dialog is used to change the description, password and access level for an existing user.
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Simrad EK60 9 Serial Port Setup The Serial Port Setup dialog allows you to define the parameters for serial communication. → Serial Port Setup on page 169 10 Port Monitor The Port Monitor dialog allows you to study the communication stream on the chosen serial or Ethernet (Local Area Network (LAN)) port. → Port Monitor on page 170 11 Transducer Parameters The Transducer Parameters dialog allows you to manually modify key transducer parameters.
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Functions and dialogs Description If you wish to change the name as well, you need to delete the user using the Remove button in the Users and Passwords dialog, and then click Add to establish a new user. Click Install →Users and Passwords. To modify the user properties, click the name on the list, and then Properties.
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Simrad EK60 • Geographical position • Recording status • Date and time Choose to display local or GMT time using the Local Time function on the Options menu. • Warning messages The Warnings field on the far right side of the status bar is a button. When a warning has been issued, the button will be lit with a colour and a text indicating the nature of the message. To investigate further, click the button.
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Functions and dialogs EK500 Datagram; Datagram Use this tab to specify which datagrams to output to file and/or on the Ethernet line. Parameters 1 Datagram A list of all available output datagrams are listed. Click to enable individual outputs. For correct output to the Olex system, the following datagrams must be enabled: • Parameter • Echogram 2 Sample Data Click to include angle, power, sound velocity and target strength data.
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Simrad EK60 2 Bottom Range Click this button to choose the bottom range for the datagrams. The button opens the Bottom Range dialog. The Bottom Range dialog is used to specify the vertical depth range for the Echogram view in bottom related echograms. → Bottom Range on page 149 EK500 Datagram; Echogram Use this tab to specify the number of surface and bottom values for the Echogram datagrams. Parameters 1 No.
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Functions and dialogs Description Messages from the EK60 can be related to any type of hardware or software errors, and even events related to operational conditions. A new message is flagged by means of the Errors/Warnings button on the Status Bar. The same dialog is also used with other message types presented by the EK60. Warnings are indicated with a yellow button on the Status Bar, while errors are indicated with a red button. Click the button to open the dialog.
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Simrad EK60 Description Messages from the EK60 can be related to any type of hardware or software errors, and even events related to operational conditions. A new message is flagged by means of the Errors/Warnings button on the Status Bar. The same dialog is also used with other message types presented by the EK60. Warnings are indicated with a yellow button on the Status Bar, while errors are indicated with a red button. Click the button to open the dialog.
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Functions and dialogs Description HAC is a data exchange format defined by ICES (International Council for the Exploration of the Sea). It is a standard format for raw and edited hydroacoustic data. The information is organised in tuples. A tuple is a labelled group of bytes encapsulating special type of information in the HAC format. They forms the basic structure of the format, allows versatility, and makes it possible to perform upgrades.
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Simrad EK60 Related topics • File Output on page 123 • Single Target Detection on page 141 • Surface Range on page 151 LAN Port Setup The LAN Port Setup dialog is accessed from the Port Management dialog as well as from other dialogs handling Ethernet communication lines. Purpose The LAN Port Setup dialog allows you to define the parameters for Ethernet (Local Area Network (LAN)) communication with external sensors (measuring devices) or peripheral systems.
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Functions and dialogs 3 Remote IP Address Select the Internet Protocol (IP) address for the 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 255.255.255.255. This is the default setting. If you use point-to-point communication in a closed network, you need to enter the remote IP address manually. 4 Remote port (UDP) Specify the local network port.
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Simrad EK60 2 Baud rate Use this entry to specify the baudrate (“speed”) for the serial communication. Standard baudrate defined for NMEA communication is 4800 baud. 3 Data bits Use this entry to specify the number of data bits for the serial communication. Standard number of data bits defined for NMEA communication is 8. 4 Parity Use this entry to specify the parity for the serial communication. Standard parity defined for NMEA communication is None.
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Functions and dialogs Description The Port Monitor dialog 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. Note that the Port Monitor dialog is a tool for debugging purposes. It is neither required nor intended for normal operation of the EK60. Parameters 1 Tx data This text window displays the data communication transmitted out from the EK60.
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Simrad EK60 Transducer Parameters The Transducer Parameters dialog is opened from the button in the Transceiver Installation dialog. Purpose The Transducer Parameters dialog allows you to manually modify key transducer parameters. Description This functionality is for advanced users only! Changing the transducer name creates a new transducer definition in the trlist.ini file. After creating a new transducer, you must disconnect the channel with the transducer, and the reconnect it.
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Functions and dialogs Description The Analog Motion Sensor Setup provides sensitivity and offset values for heave, roll and pitch. Each parameter can be selected individually. Example 5 Offset parameters If the sensor outputs a fixed voltage when the vessel is level and not moving, you can adjust the offset so that the EK60 accepts this input as the “normal” value. Parameters 1 Heave Voltage Sensitivity Adjust the sensitivity from the sensor.
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Simrad EK60 Telegram formats This chapter details the standard NMEA, third party and proprietary Simrad telegrams, as well as – if applicable – dedicated file formats for data transfer. According to their web site, the National Marine Electronics Association (NMEA) is the unifying force behind the entire marine electronics industry, bringing together all aspects of the industry for the betterment of all in our business.
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Telegram formats Topics • National Marine Electronics Association (NMEA) on page 175 • NMEA telegram principles on page 175 • Standard NMEA 0183 communication parameters on page 175 • NMEA sentence structure on page 176 National Marine Electronics Association (NMEA) The National Marine Electronics Association (NMEA) has defined communication standards for maritime electronic equipment, and the EK60 echo sounder conforms to these standards.
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Simrad EK60 NMEA sentence structure The following provides a summary explanation of the approved parametric sentence structure. $aaccc,c—c*hh 1 “$”: Start of sentence (Hex: 24). 2 aaccc: Address field. The first two characters (aa) identifies the Talker ID, while the last three characters are the Sentence formatter mnemonic code identifying the data type and the string format of the successive fields. 3 “,”: Field delimiter (Hex: 2C).
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Telegram formats Specification of NMEA telegrams All standard NMEA telegrams supported by the EK60 are specified here. The information is extracted from the original NMEA specifications. If additional details about the individual telegram formats are required, see the original source file.
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Simrad EK60 DBT Depth below transducer This telegram provides the water depth referenced to the transducer. Format $--DBT,x.x,f,y.y,M,z.z,F*hh Format description 1 – – = talker identifier 2 DBT = telegram identifier 3 x.x,f = water depth below transducer in feet 4 y.y,M = water depth below transducer in meters 5 z.
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Telegram formats GGA Global positioning system fix data This telegram contains time, position and fix related data from a global positioning system (GPS). Format $--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a, x,zz,d.d,a.a,M,g.g,M,r.r,cccc*hh Format description 1 – – = talker identifier 2 GGA = telegram identifier 3 hhmmss.ss = coordinated universal time (UTC) of position 4 llll.ll = latitude north/south, position in degrees, minutes and hundredths. 5 a = North/South.
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Simrad EK60 5 yyyyy.yy,a = longitude east/west, position in degrees, minutes and hundredths. 6 a = West/East. Characters W (West) or E (East) identifies the bearing. 7 hhmmss.ss = coordinated universal time (UTC) of position. 8 A = status, characters A (data valid) or V (data not valid) are used. 9 a = mode indicator.
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Telegram formats HDM Heading, magnetic This telegram contains vessel heading in degrees magnetic. The telegram is no longer recommended for use in new designs. It is often replaced by the HDG telegram. Format $--HDM,x.x,M*hh Format description 1 – – = talker identifier 2 HDM = telegram identifier 3 x.x = heading in degrees, magnetic Related topics • Navigation; Heading tab on page 106 HDT Heading, true This telegram is used to transfer heading information from a gyro. Format $--HDT,x.
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Simrad EK60 4 A = status, characters A (data valid) or V (Navigation receiver warning) are used. 5 llll.ll,a = latitude nort/south. Characters N (North) or S (South) identifies the bearing. 6 yyyyy.yy.a = longitude east/west. Characters E (East) or W (West) identifies the bearing. 7 x.x = speed over ground, knots 8 z.z = course over ground, degrees true 9 ddmmyy = date 10 r.r,a = magnetic variation, degrees east/west. Characters E (East) or W (West) identifies the bearing.
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Telegram formats VHW Water speed and heading This telegram contains the compass heading to which the vessel points and the speed of the vessel relative to the water. Format $--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh Format description 1 – – = talker identifier 2 VHW = telegram identifier 3 x.x,T = heading, degrees true 4 x.x,M = heading, degrees magnetic 5 x.x,N = speed relative to water, knots, resolution 0.1 6 x.x,K = speed relative to water, km/hr, resolution 0.
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Simrad EK60 Format description 1 – – = talker identifier 2 VTG = telegram identifier 3 x.x,T = course over ground, degrees true 4 y.y,M = course over ground, degrees magnetic 5 z.z,N = speed over ground, knots, resolution 0.1 6 g.g,K = speed over ground, km/hr, resolution 0.
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Telegram formats Proprietary telegrams and formats These are the proprietary telegrams supported by the EK60. These telegram formats have all been defined by Simrad. The telegrams are listed in alphabetical order.
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Simrad EK60 long TransducerNumber[4]; float AthwartShips; }; Ethernet format description 1 Header# = can be D1, D2 or D3 for channels 1, 2 or 3.
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Telegram formats 4 5 is used inside the system in all data displays and in logged data (a transformation is applied if the roll is given with respect to the horizontal). Note that heave is displayed and logged as positive downwards (the sign is changed). Heave is corrected for roll and pitch. This format was originally designed for use with the EM 950 and the EM 1000 multibeam echo sounders with the first synchronisation byte always assumed to be zero.
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Simrad EK60 4 This format has previously been used with the EM 950 and the EM 1000 with the first synchronisation byte always assumed to be zero (Datagram “Kongsberg EM Attitude 1000”). The sensor manufacturers have been requested to include sensor status in the format using the first synchronisation byte for this purpose.
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Telegram formats Note This description is not complete. For further information, contact Simrad.
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Simrad EK60 17 Cb = cable quality: • 0 = cable is not connected • 1 = cable is OK • 2 = a short circuit, or the hydrophone current is too large 18 error = error detected – 0 when no error is detected, a number >0 indicates an error condition 19 chksum = The checksum field consists of a "*" and two hex digits representing the exclusive OR of all characters between, but not including, the "$" and "*" characters PSIMDHB Bottom hardness and biomass This proprietary Simrad telegram contains the bottom hardness
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Telegram formats The definition of the attitude angles in this format is different from the Euler angles definition used elsewhere. The difference appears in the roll angle, where: Rollechosounder = arcsin sin(Roll Euler ) • cos(Pitch Euler ) Format :aabbbb shhhhxsrrrr spppp Format description 1 aa = sway – two characters hex number with sway acceleration, in 0.03835 m/ss units 2 bbbb = heave – four characters hex number with heave acceleration, in 0.
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Simrad EK60 6 s = a single character providing a “space” character if the value is positive, or a “–” character if it is negative 7 rrrr = roll – four character decimal number with roll angle in hundreds of a degree 8 s = a single character providing a “space” character if the value is positive, or a “–” character if it is negative 9 pppp = pitch – four character decimal number with pitch angle in hundreds of a degree Simrad ATS Annotation This proprietary Simrad telegram contains a text string to
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Telegram formats Proprietary third party telegrams and formats All third party telegram formats supported by the EK60 are specified here. These telegram formats are created by third party organizations, and they are supported by the EK60 to allow for interface to third party systems. Topics • Atlas depth telegram on page 193 • Furuno GPhve heave telegram on page 193 Atlas depth telegram This proprietary Atlas telegram contains the current depth from two channels. Format Dyxxxxx.
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Simrad EK60 File formats This chapter describes the file formats supported by the EK60 Scientific echo sounder. Topics • Numeric type definition on page 194 • Raw data format on page 194 Numeric type definition In order to describe the data type formats, common ”C” structures are used to represent individual data blocks.
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File formats Every *.raw file begins with a configuration telegram. A second configuration datagram within the file is illegal. The data content of the Configuration datagram of an already existing file cannot be altered from the EK60. NMEA, Annotation and Sample datagrams constitute the remaining file content. These datagrams are written to the *.raw file in the order that they are generated by the EK60. In the following descriptions, the information after the "//" characters are comments to that line.
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Simrad EK60 Description All datagrams use the same header. The datagram type field identifies the type of datagram. ASCII quadruples are used to ease human interpretation and long term maintenance; three characters identify the datagram type and one character identifies the version of the datagram. The DateTime structure contains a 64-bit integer value stating the number of 100 nanosecond intervals since January 1, 1601. This is the internal ”filetime” used by the Windows NT operating system.
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File formats float Frequency; // [Hz] float Gain; // [dB] - See note below float EquivalentBeamAngle; // [dB] float BeamWidthAlongship; // [degree] float BeamWidthAthwartship; // [degree] float AngleSensitivityAlongship; float AngleSensitivityAthwartship; float AngleOffsetAlongship; // [degree] float AngleOffsetAthwartship; // [degree] float PosX; // future use float PosY; // future use float PosZ; // future use float DirX; // future use float DirY; // future use float DirZ; // future use float PulseLength
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Simrad EK60 An example NMEA speed message line is shown below: $HUVTG,245.0,T,245.0,M,4.0,N,2.2,K‹cr›‹lf› Related topics • Specification of NMEA telegrams on page 177 Annotation datagram The annotation datagram contains comment text that you have entered ("dangerous wreck"). The text string is zero terminated. The size of the complete datagram depends on the annotation length. The maximum annotation string is 80 characters.
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File formats Remarks 1 Power: The power data contained in the sample datagram is compressed. In order to restore the correct value(s), you must decompress the value according to the equation below. y=x 10 log 2 256 where: • x = power value derived from the datagram • y = converted value (in dB) 2 Angle: The fore-and-aft (alongship) and athwartship electrical angles are output as one 16-bit word.
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Simrad EK60 Data subscription and remote control The EK60 Scientific echo sounder system provides the facility to subscribe to data, and to control the system operation from a user developed remote application. This allows you to write your own application which controls the EK60 operation (e.g. start/stop pinging, change ping interval, and start/stop data recording). From your application you can also subscribe to data from the EK60.
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Data subscription and remote control Figure 9 Data subscriptions Subscriber parameter updates (UDP / Binary) Client application (Echo sounder or third party) Subscribed data updates (UDP / Binary) Echo sounder server application Commands and responses (UDP / XML) (CD010017A) Data subscriptions overview The following is an overview of the process for data subscription and remote control.
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Simrad EK60 RequestServerInfo Send the following RequestServerInfo message to the specific IP address of the server, or broadcast the message to receive server information from all servers on the LAN. The message should be send to the UDP port number found in the Local port field on the Server page in the Remoting dialog in the server application.
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Data subscription and remote control Response The server application will respond with a Response message containing at least the client id if the connect command succeeded, or an error if the connect command failed. The contents of the various parts of a response message for a successful connect command is shown below.
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Simrad EK60 AliveReport The content of the AliveReport message is shown below. struct AliveReport { char Header[4]; // ”ALI\0” char Info[1024]; // e.g. ”ClientID:1,SeqNo:1\0” }; The Info field in an AliveReport message from the client to the server may contain (for example): ClientID:1,SeqNo:1\0 SeqNo The SeqNo part of the Info field shall contain the sequence number of the next request message from the client to the server (the sequence number shall start on 1).
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Data subscription and remote control If the contents of MsgControl is ”2,1,3\0” it means that the current UDP message is the second request message sent from the client to the server, and that the current message is message number 1 of a request that consists of a total of three UDP messages. MsgRequest The contents of the MsgRequest depend on the current command target and will be described in detail later.
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Simrad EK60 clientid requestid 0 where: • clientid = client identification • requestid = request identification • error code = the result of the operation.
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Data subscription and remote control An example of the contents of the Request field of a Subscribe command to the RemoteDataServer is shown below: 1 1 invokeMethod RemoteDataServer 12345 BottomDetection The server application will respond with a Response message.
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Simrad EK60 If the amount of data exceeds the limit of one UDP message, the data will be split into multiple UDP messages. The TotalMsg field contains the number of UDP messages for the current data, this is identified with any number larger than 1. The CurrentMsg field contains the current message number out of the total number of messages. The Data field shall be decoded according to the specified output structure from the subscription described in section Data subscription types on page 211.
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Data subscription and remote control An example of the contents of the szRequest field of an Unsubscribe command to the RemoteDataServer is shown below. 1 1 invokeMethod RemoteDataServer 1 The server application will respond with a ResponseDef message.
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Simrad EK60 An example of the contents of the Request field of a GetParameter command to the ParameterServer is shown below.
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Data subscription and remote control An example of the contents of the Request field of a SetParameter command to the ParameterServer is shown below.
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Simrad EK60 The data output will always start with a 64-bit integer time value, which identifies the number of 100 nanoseconds intervals that has elapsed since January 1, 1601. If a parameter is skipped in the subscription input string it will be replaced by the default value. The decoding of the subscription will be case insensitive. In the output data to be received by external devices, the information about the current structure length is given.
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Data subscription and remote control Parameters Range Default Unit RangeStart (0,20000) 0 m MinTSValue (–120,50) –50.0 dB MinEchoLength (0,20) 0.8 None MaxEchoLength (0,20) 1.8 None MaxGainCompensation (0,12) 6.0 None MaxPhaseDeviation (0,100) 8.
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Simrad EK60 Input Parameters Range Default Unit SampleDataType (Power, Angle, Sv, Sp, Ss, TVG20, TBG40, PowerAngle) Power None Range (0,20000) 100 m RangeStart (0,20000) 0 m Output for Power, Angle, Sv, Sp, Ss, TVG20 and TVG40 struct StructSampleDataHeader { DWORDLONG dlTime; }; struct StructSampleDataArray { short nSampleDataElement[30000]; // 16-bits sample in logarithmic format }; struct StructSampleData { StructSampleDataHeader SampleDataHeader; StructSampleDataArray SampleDataArray; };
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Data subscription and remote control Input Parameters Range Default Unit PixelCount (0,10000) 500 None Range (0,20000) 100 m RangeStart (0,20000) 0 m TVGType (Pr, Sv, Sp, TS, SpAndTS) Sv None EchogramType (Surface, Bottom, Trawl) Surface None CompressionType (Mean, Peak) Mean None ExpansionType (Interpolation, Copy) Interpolation None Output struct StructEchogramHeader { DWORDLONG dlTime; }; struct StructEchogramArray { short nEchogramElement[30000]; // 16-bit logarithmic fo
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Simrad EK60 Parameters Range Default Unit MinTSValue (-120,50) –50 dB MinEchoLength (0,20) 0.8 None MaxEchoLength (0,20) 1.8 None MaxGainCompensation (0,12) 6.0 dB MaxPhaseDeviation (0,100) 8.
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Data subscription and remote control Output struct StructIntegrationDataHeader { DWORDLONG dlTime; }; struct StructIntegrationDataBody { double dSa; // integrated value [m2/nmi2] }; struct StructIntegrationData { StructIntegrationDataHeader IntegrationDataHeader; StructIntegrationDataBody IntegrationDataBody; }; Example Building a Integration subscription string: Integration, ChannelID=, State=Start, Update=UpdatePing, Layertype=Surface, Range=100, Rangestart=10, Margin=0.5, SvThreshold=-100.
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Simrad EK60 DWORDLONG dlTime; }; struct StructIntegrationDataBody { double dSa; // integrated value from single echo // trace [m2/nmi2] }; struct StructIntegrationData { StructIntegrationDataHeader IntegrationDataHeader; StructIntegrationDataBody IntegrationDataBody; }; Example Building a TargetsIntegration subscription string: TargetsIntegration, ChannelID=, State=Start, Layertype=Surface, Range=100, Rangestart=10, Margin=0.5, SvThreshold=-100.0, MinTSValue=-55.0, MinEcholength=0.
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Data subscription and remote control Table 8 Ping based parameters (cont'd.) Description Parameter name R/O Range Unit Absorption Coefficient TransceiverMgr/ / AbsorptionCofficient Yes 0,0 to 0,3 dB/m Sound velocity TransceiverMgr/ / SoundVelocity No 1.400 to 1.700 m/s Transducer name TransceiverMgr/ / TransducerName Yes N/A - Transducer depth TransceiverMgr/ / TransducerDepth No 0 to 10.
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Simrad EK60 Table 8 Ping based parameters (cont'd.) Description Parameter name R/O Range Unit Vessel roll TransceiverMgr/ Roll No –90 to 90 deg Vessel pitch TransceiverMgr/ Pitch No –90 to 90 deg Vessel distance TransceiverMgr/ Distance Yes 0 to 100.
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Data subscription and remote control Table 10 Operation mode parameters (cont'd.
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Simrad EK60 Echo sounder theory When you use an echo sounder there are some basic knowledge that you may find it useful to possess.
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Echo sounder theory Concepts Observe the following descriptions of key concepts. Topics • Observation range on page 223 • Split-beam operation on page 224 • Bottom echo on page 225 • Wave propagation on page 225 • Biomass on page 226 • Dynamic range and display presentation on page 227 • Bottom slopes on page 227 Observation range Absorption increases dramatically with frequency in salt water.
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Simrad EK60 Table 12 Maximum detection depth, split beam transducers Transducer Frequency (kHz) Pulse duration (ms) Bandwidth (hz) Tx power (W) Range fish (m) Range bottom (m) ES18–11 18 8,21 382 2000 1100 7000 ES38B 38 4,09 766 2000 950 2800 ES70–11 70 2,05 1526 800 450 1100 ES120–7C 120 1,02 3026 1000 440 850 ES200–7C 200 1,02 3088 1000 270 550 These range calculations assume a normal sea water salinity (3.
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Echo sounder theory Bottom echo A hard flat bottom reflects the transmitted signal as if it were a mirror. The transmitted pulse hits the illuminated bottom area at nearly the same instant, and the echo from different parts of this area arrive back at the surface also at nearly the same instant. The received echo signal is basically an attenuated copy of the short transmit pulse. The echo signal from a sloped bottom is characterized by having a longer duration and a slower rise and fall time.
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Simrad EK60 The EK60 transmits high energy sound wave pulses into the sea. A flat bottom reflects the transmitted wave as if it were a mirror. The propagating energy is spread over a larger and larger area as it travels down to the bottom and up again. The energy is spread over a four times larger area every time the travel distance doubles. Figure 12 Wave propagation from a flat bottom A large school of fish reflects sound waves similarly.
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Echo sounder theory to start fishing. You must also consider if this number is a result of large amounts of plankton or bait, or if there is real fish below the keel. The number provided to display fish abundance is relative, and after some use your experience will be a valuable factor when the decision is made. The biomass value is also used by the researches to calculate how much fish there is in the ocean.
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Simrad EK60 One method for minimizing the “bottom slopes” phenomenon is to use a transducer with narrow beam, or to increase the pulse duration. To minimize this phenomenon on the EK60 you can open the Bottom Detector dialog by right-clicking the depth presentation, and then change the setting for Backstep Minimum Level.
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Echo sounder theory Example 6 Bottom slopes Figure 15 Bottom slopes The edge of the beam (A) hits the bottom first, and starts to give an echo. The bottom detector in the EK60 measures the strongest echo, detects what it thinks is the bottom, and starts the white line. The area above the bottom detection (B) will be masked off, and even though it may contain fish these will not be visible because the echo from the bottom is stronger than those from the fish. The estimated depth (C) will be shown.
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Simrad EK60 Parameters Observe the following descriptions of key parameters. Topics • TVG gain on page 230 • Output power on page 231 • Pulse duration on page 233 • Range selection on page 235 TVG gain TVG means Time Varied Gain. When TVG is used in an echo sounder, we also some times refer to it as depth variable gain. The purpose of the TVG functionality is to make all fishes appear with the same echo colour independent of their different depths.
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Echo sounder theory The illustration shows how the gain close to the bottom (B) is larger than just below the transducer (A). The echoes from the fish close to the bottom will then be shown with the same strength (colour) as echoes from pelagic fish. Figure 16 TVG principle 20 log R A 40 log R A The left vessel uses the 20 log R setting. Due to the increasing beam width (C), single fishes are shown larger and larger with increasing depth, even though they may be of identical size.
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Simrad EK60 In order to know how much power you can use you must know what kind of transducer you are using. Provided that the echo sounder has been installed with a Simrad transducer, and you know what type it is, this is no problem. All necessary parameters about the transducer are then known by the echo sounder, and the software in the sounder will ensure that you do not output too much power.
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Echo sounder theory When the peak pressure amplitude is somewhat greater than 1 atm, the absolute pressure for a sound source at sea level will be less than zero during the rarefaction part of the cycle. In using CW below 10 kHz, this negative pressure, or tension, is the trigger for a sharply increased level of harmonic distortion and the issuance of broadband noise.
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Simrad EK60 A pulse duration of 1 mS covers 1,5 meters in the water, and this corresponds to a target separation of approximately 75 cm. This is a typical pulse duration that you may well use down to 250 to 300 meters. If you work in deeper waters use a longer pulse duration, if it is shallower, use a shorter pulse duration. Try out different values, and seek out the pulse duration that provides you with the clearest echo presentation with minimum noise, but with maximum fish detection and separation.
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Echo sounder theory Related topics • Changing the pulse duration to enhance the vertical resolution on page 22 • Normal Operation on page 76 Range selection For every frequency (channel) you wish to present on the echo sounder display, you are provided with two echograms.
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Simrad EK60 Example 9 Start Range in a pelagic echogram In a pelagic echogram, set the Start Range value to 20 meters. This will make the echogram start from 20 meters below the sea surface (provided that the transducer offset has been defined). Set Range to 40 meters. The echogram will now show the area from 20 meters below the sea surface, and down to 60 meters below the transducer. Provided that the depth is larger than 60 meters, the bottom contour is not shown.
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Installation Installation These are the specific procedures required to get you started with the Simrad EK60. Normally, you will only need to do these procedures once. We recommend that you allow your dealer – with the assistance from a shipyard – to do the physical installation, install the software, and get you started.
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Simrad EK60 3 4 These tasks are described in detail in the Simrad EK60 Installation manual. Do a close visual inspection of the installation. Check each cable and connection to ensure that all wiring is correct. Power up the EK60, and proceed with the next procedure; software installation. Related topics • Installation of the EK60 software on page 238 Upgrading the EK60 software Use this procedure when you wish to upgrade the EK60 software on a computer.
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Installation 6 Once the installation has been completed, double-click the program icon on the desktop to start the application. 7 If you use Windows 7 operating system: a Observe that Windows 7 Firewall will open a dialog requesting information about the network. Select Public, and click Allow access. b 8 The operating system may also open other dialogs to verify that the EK60 software can run on the computer. You must permit this. Observe the relevant start-up procedure.
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Simrad EK60 Procedure 1 On the computer, define the network adapter settings. Windows® XP® a Click Start →Settings →Network Connections. b Click on the network adapter once to select it. c Right-click, and click Properties on the short-cut menu. d On the list of connections, click Internet Protocol (TCP/IP), and then Properties. e Click Use the following IP address, and enter the IP address and network mask. IP Address: 157.237.15.12 Subnet mask: 255.255.255.0 f Click OK to save the settings.
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Installation Installing frequency channels This procedure explains how to install a frequency channel. Each transceiver contains one or more frequency channels. This phrase is used to identify the combination of a transceiver, transducers and the frequencies offered. Split beam transceivers contain only one channel each. The upper part of the Transceiver Installation dialog displays a list of frequency channels which either are, or have been, installed on the EK60.
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Simrad EK60 Important The procedure assumes that you have already installed one or more frequency channels. Procedure 1 Click File →Operation. 2 Observe that the Normal Operation dialog opens The purpose of the Normal Operation dialog is to offer you an overview of the current transceiver parameters, and to provide you with the ability to change them. 3 Verify that all the parameters have been defined. 4 Click OK to save the current settings and close the dialog.
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Index Index 12 colours, 90 64 colours, 90 A About bottom slopes, 227 depth variable gain, 230 dialog description, 136 display presentation, 227 dynamic range, 227 NMEA telegram formats, 174 output power, 231 pelagic echogram, 235 pulse duration, 233 TVG, 230 users, 117 Access level data source, 83 users, 117 Acknowledge Messages, 165–166 Active transceiver mode, 76 Add echogram playback files, 79 port, 130 serial port, 120, 122 user, 117 Add User Account dialog description, 160 Administrator user, 117 Alw
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Simrad EK60 Help menu, 67, 136 Install menu, 65, 95 Numerical short-cut menu, 73 Operation menu, 63, 75 Options menu, 64, 89 Output menu, 66, 123 Scope short-cut menu, 71 Shortcut menus, 68, 138 Single Target Histogram short-cut menu, 69 Single Target Position short-cut menu, 69 View menu, 64, 86 Window menu, 67, 132 Click definition, 19 Close All function description, 135 Colour coding serial ports, 119 Colour palette, 90 Colour scale, 90 view, 60–61 Colour Scale dialog description, 143 Colour Scale short
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Index Data Source dialog, 82 Delete Layer function, 155 Depth Output, 128 display presentation, 227 display views, 50 dynamic range, 227 Echogram dialog, 144 EK500 Datagram dialog, 162 Environment dialog, 110 Ethernet Output dialog, 127 Exit dialog, 85 File Output dialog, 123 fish abundance, 226 HAC Datagram dialog, 166 Hide View dialog, 158 Histogram dialog, 144 Horizontal Axis dialog, 148 LAN Port Setup dialog, 168 Layer Properties dialog, 154 Load Settings dialog, 93 Local Time dialog, 92 Log In dialog,
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Simrad EK60 pelagic, 235 ping marker, 147 playback files, 79 presentations, 21 range how to change, 21 remove playback files, 79 setting how to change, 21 time marker, 147 trawl (line), 146 vertical markers, 147 vertical scale, 147 view, 58 white Line, 146 Echogram channel how to disconnect, 26 how to install, 25, 241 Echogram colours, 90 Echogram short-cut menu options, 70 EK500 enable depth telegram, 130 NMEA Sentence, 130 EK500 Datagram dialog description, 162 EK500 datagrams list, 163 EK500 Depth teleg
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Index sensitivity, 173 Heave roll and pict protocol, 190 Help on-line, 9 Help menu options, 67, 136 Hex display Port Monitor, 171 HFB telegram, 188 Hide View function description, 158 Histogram dialog description, 144 Horizontal Axis, 149 dialog description, 148 How to basic system installation, 237 change echogram range, 21 echogram settings, 21 vertical resolution, 22 change the IP address, 26 choose Normal operational mode, 241 connect multiplexer, 34 define maximum depth, 22 minimum depth, 22 disconnec
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Simrad EK60 bottom detection, 140 Maximum echo length Single Target Detection, 142 Maximum gain compensation Single Target Detection, 142 Maximum phase deviation Single Target Detection, 142 Menu system, 62 Messages Acknowledge, 165–166 Current Message, 165–166 Delete, 165–166 Delete all, 165–166 Min.
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Index Window menu, 67, 132 Options menu options, 64, 89 Output EK500, 127 Output menu options, 66, 123 Output power description, 231 P Palette, 90 Parity, 170 Parity bit NMEA 0183 standard, 175 Passive transceiver mode, 76 Password change, 118 log in, 84 Path setting file, 93 Phase deviation Single Target Detection, 142 Phased area description, 235 PI sensor definition telegram, 188 Ping Calculation Interval, 92 horizontal axis, 149 interval, 81 maximum speed, 80 single step, 81 Ping Control dialog descri
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Simrad EK60 Reader this manual, 9 Recording raw data how to, 28 Reference information, 74 Registered trademarks, 10 Remote IP LAN port, 121 Remote IP Address, 100, 116, 128, 169 Remote port, 116, 128, 169 LAN port, 121 Remoting dialog description, 113 Remove echogram playback files, 79 LAN port, 122 port, 130 serial port, 120 user, 118 Replay add echogram files, 79 dialog description, 78 files, 79 loop echogram files, 79 raw data how to, 29 remove echogram files, 79 Resolution Histogram, 144 vertical how t
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Index Standard NMEA 0183 standard, 175 Start pinging, 80 Start -up procedure initial, 239 Start at vessel distance file output, 125 Start Relative Bottom, 150 Start-up procedures, 237 Status Bar description, 53 function description, 87 Stop pinging, 80 Stop bit NMEA 0183 standard, 175 Subnet mask Ethernet board in computer, 100, 240 Sunlight do NOT expose transducer, 13, 38 Surface reference, 145 Surface Range dialog description, 151 EK500 datagram output, 163 Switch off procedure, 20 Switch on procedure,
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Simrad EK60 depth telegram, 188 dialog description, 109 opening, 110 Trawl (line) echogram, 146 Trawl, bottom telegram, 188 Trawl, footrope telegram, 188 Trawl, headrope telegram, 188 TVG description, 230 Tx data Port Monitor, 171 Type transceiver, 98 transducer, 99 U Upgrade software, 238 Use basic, 222 User add, 117 list, 117 remove, 118 rights, 117 User name data source, 83 log in, 84 User Properties dialog description, 160 Users and Passwords dialog description, 117 enable telegram format, 105 NMEA S
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Simrad EK60 253 164692/D