Kongsberg Simrad ST90 Reference Manual
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Kongsberg Simrad ST90 Reference Manual

Kongsberg Simrad ST90 Reference Manual

Fish-finding sonar
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REFERENCE
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Simrad ST90
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  • Page 1 REFERENCE MANUAL Simrad ST90 kongsberg.com/simrad...
  • Page 3 Additional end-user documents related to the ST90 system can be found on our website. This includes publications that are translated to other languages. Selected publications are also provided on IETM (Interactive Electronic Technical Manual) formats. • https://www.kongsberg.com/st90 442704/A November 2021 © Kongsberg Maritime AS...
  • Page 4 Kongsberg Maritime disclaims any responsibility for damage or injury caused by improper installation, use or maintenance of the equipment. Disclaimer Kongsberg Maritime AS endeavours to ensure that all information in this document is correct and fairly stated, but does not accept liability for any errors or omissions. Support information If you require maintenance or repair, contact your local dealer.

  • Page 5: Table Of Contents

    Reference Manual Table of contents ABOUT THIS MANUAL ..............15 SIMRAD ST90 ................17 Important..........................18 System description ........................ 20 System diagram........................22 System units .......................... 23 Display......................... 23 Processor Unit ......................23 Operating Panel ......................24 Transceiver Unit ......................24 Hull Unit........................
  • Page 6 Simrad ST90 Selecting operating frequency for minimum noise ............. 72 Hiding the menu system when you do not need it ............73 Saving single or sequential screen captures ..............74 Saving the current user settings................... 75 Defining the ping (transmission) modes..............76 Context-sensitive online help....................
  • Page 7 Reference Manual Choosing the fishing gear in use.................114 Changing the fishing gear properties to match your own equipment......115 Improving the recognition of fish and schools using receiver filters ........117 About the receiver filter sequence in the ST90 system ..........118 Reducing noise and reverberation with the AGC (Automatic Gain Control) function ........................119 Reducing propeller noise and interference with the Noise Filter ......
  • Page 8 Simrad ST90 Using maps ......................... 152 Enabling and disabling the map presentation............152 Selecting which map elements to include in the display presentation ...... 153 Setting up the presentation of the depth lines in the map.......... 154 Choosing a map provider ..................154 Defining settings related to user preferences and individual customizing......
  • Page 9 Reference Manual Lowering and hoisting the transducer using the Hoist/Lower Switch ...... 188 Lowering and hoisting the transducer using the hand crank ........190 Emergency lowering and hoisting using the two contactors ........192 Setting up the interfaces to peripheral devices ..............195 Installing navigation sensors and other sensors ............
  • Page 10 Simrad ST90 Preventive maintenance ...................... 272 Preventive maintenance schedule................273 Requirements for personnel and tools ............... 275 Approved anti-fouling paints..................276 Preventive maintenance procedures ................278 Accessing the inside of the installation trunk............299 USER INTERFACE..............305 User interface familiarization ..................... 306 Top bar ..........................
  • Page 11 Reference Manual Information panes ....................... 363 Biomass information pane description ..............364 Size Distribution information pane description............366 Fish Position information pane.................. 369 Zoom information pane ..................... 371 Bottom bar .......................... 373 MENU SYSTEM ................. 375 About the menus and menu buttons..................376 Using the “smart”...
  • Page 12 Simrad ST90 Transparency function ....................443 View Range function ....................444 Display Gain function ....................444 Panel Backlight function ................... 446 Colour Threshold function ..................447 Screen Brightness function..................447 Display Options dialog box ..................448 Colour Setup dialog box.................... 449 Docking Views function ....................
  • Page 13 Reference Manual Vertical Reference function ..................491 Echogram dialog box....................492 Information Pane Options dialog box ............... 492 Secondary functions and dialog boxes................494 Replay File dialog box ....................494 Recording dialog box ....................497 LAN Port Setup dialog box ..................498 Serial Port Setup dialog box ..................
  • Page 14 Simrad ST90 Transducer page......................549 Noise page ......................... 552 Element BITE dialog box..................554 B-Scan page....................... 555 Matrix page........................ 560 Pages in the Installation dialog box ..................564 Sensor Installation page..................... 565 Sensor Configuration page ..................570 Motion Reference Unit page ..................573 Installation Parameters page..................
  • Page 15 Reference Manual Acoustic noise........................633 Introduction to the acoustic noise challenge ............. 633 Contributing factors....................633 Self noise ........................635 Ambient noise......................638 Electrical self noise ....................638 Reverberation ......................639 Some means to reduce acoustic noise ............... 640 TECHNICAL SPECIFICATIONS..........643 Introduction to technical specifications ................
  • Page 16 Simrad ST90 Operating Panel compass safe distance (Mk1)............660 Operating Panel compass safe distance (Mk2)............660 Operating Panel compass safe distance (Mk3)............660 Transceiver Unit compass safe distance..............660 Hull Unit compass safe distance ................661 Minimum display requirements ..................661...

  • Page 17: About This Manual

    About this manual About this manual The purpose of this publication is to provide the descriptions, procedures and detailed parameter explanations required to allow for safe and efficient use of the ST90 system. The publication also provides you with a thorough understanding of the parameters and adjustments provided by the ST90 system.
  • Page 18 , SIMRAD ® and the Simrad ® logo are either registered trademarks, or trademarks of Kongsberg Maritime AS in Norway and other countries. Windows ® is a registered trademark of Microsoft Corporation in the United States and other countries. We want your feedback We always want to improve our products.

  • Page 19: Simrad St90

    Simrad ST90 Simrad ST90 Topics Important, page 18 System description, page 20 System diagram, page 22 System units, page 23 Order information, page 28 General safety rules, page 29 Network security, page 30 Support information, page 31 442704/A...

  • Page 20: Important

    Simrad ST90 Reference Manual Important The ST90 is an advanced product. It is used with other advanced products. There is important information that you need to know. Before you turn on the ST90 system Before you turn on the ST90 system, make sure that you have sufficient water depth to...
  • Page 21 • Do not damage the outer protective skin of the transducer. • Do not damage the outer protective skin of the transducer face. • Do not step on the transducer cables. • Do not damage the transducer cables. Avoid exposure to sharp objects. Related topics Simrad ST90, page 17 442704/A...

  • Page 22: System Description

    Simrad ST90 Reference Manual System description The Simrad ST90 is a long range and low frequency fish finding sonar with a 360 degrees coverage. The ST90 system is designed for medium and large sized fishing vessels. If high performance is your number 1 criteria when choosing a sonar; such as long range, high resolution, narrow beams and high source levels, this is your natural choice.
  • Page 23 The ST90 system is equipped with the celebrated signal processing software developed by Kongsberg Maritime. This includes Hyperbolic FM (HFM) transmissions. This pulse type is also known as "chirp". It ensures a clutter free picture with very high resolution in range.

  • Page 24: System Diagram

    Simrad ST90 Reference Manual System diagram The system diagram identifies the main components of a basic ST90 system. Only the main connections between the units are shown. Detailed interface capabilities and power cables are not shown. Display (The second display is optional.)

  • Page 25: System Units

    ST90 system. The number of displays must be chosen to fit the preferences of the crew. Related topics Simrad ST90, page 17 System units, page 23 Processor Unit A dedicated maritime computer is provided. In this publication, the computer can also be referred to as the Processor Unit, and vice versa.

  • Page 26: Operating Panel

    Simrad ST90 Reference Manual Related topics Simrad ST90, page 17 System units, page 23 Installing and maintaining software, page 230 Operating Panel The optional Operating Panel contains all necessary control functions for normal operation of the ST90 system. The Operating Panel offers all necessary control functions for normal operation.

  • Page 27: Hull Unit

    The heat exchanger is powered from 230 VAC using a separate outlet. Related topics Simrad ST90, page 17 System units, page 23 Hull Unit The hull unit is used to lower the transducer down below the ship’s hull when the ST90 system shall be used.

  • Page 28: Transducer

    Simrad ST90 Reference Manual manual operation, read carefully through the relevant operating procedures. You must familiarize yourself with the correct handling methods and the relevant safety requirements. Hull Unit Lowering depth (m) Transducer cable (m) Maximum speed (knots) ST92 ST93 ST94 On some vessels, additional transducer protection is required.
  • Page 29 • Do not damage the outer protective skin of the transducer face. • Do not step on the transducer cables. • Do not damage the transducer cables. Avoid exposure to sharp objects. Related topics Simrad ST90, page 17 System units, page 23 442704/A...

  • Page 30: Order Information

    Simrad ST90 Reference Manual Order information To order the ST90 system, or any of the optional items provided with it, contact your local dealer. If you do not have a regular dealer, a list of all our distributors and dealers can be found on our website.Your dealer will also be able to help you with a detailed quotation...

  • Page 31: General Safety Rules

    Simrad ST90 General safety rules Safety is important. The safety precautions must be followed at all times during installation and maintenance work. WARNING The ST90 system operates on 115 VAC and/or 230 VAC at 50/60 Hz. This voltage is lethal! You must never work alone on high-voltage equipment! The hull unit is powered by a 3-phase high voltage.

  • Page 32: Network Security

    The damage done if a remote computer succeeds doing this. Kongsberg Maritime has no information regarding the complete system installation on any vessel. Systems provided by Kongsberg Maritime are regarded as stand-alone offline systems. They are stand-alone even though they may be connected to a network for sensor interfaces and/or data distribution.

  • Page 33: Support Information

    The customer/end user of the ST90 system will always be in charge of defining and implementing a security, policy and providing the relevant network security applications. Note Kongsberg Maritime will not accept any responsibility for errors and/or damages caused by unauthorized use of or access to the ST90. Related topics...
  • Page 34 Telefax • www.kongsberg.com/simrad Website • simrad.france@simrad.com Email address • : Kongsberg Underwater Technology LLC (KUTL) / Simrad Fisheries Company name • : 19210 33rd Ave W, Suite A, Lynnwood, WA 98036, USA Address • : +1 425 712 1136 Telephone •...
  • Page 35 Simrad ST90 Korea • : Kongsberg Maritime Korea Ltd Company name • : #1101 Harbor Tower, 113-1, Nampodong 6-Ga, Jung-Gu, Busan 600-046, Korea Address • : +82 51 242 9933 Telephone • : +82 51 242 9934 Telefax • www.kongsberg.com/simrad Website •...

  • Page 36: Getting Started

    Simrad ST90 Reference Manual Getting started Topics Operating panels, page 35 Starting normal operation, page 52 Basic operating procedures, page 71 Context-sensitive online help, page 77 442704/A...

  • Page 37: Operating Panels

    Getting started Operating panels The optional Operating Panel contains all necessary control functions for normal operation of the ST90 system. The Operating Panel offers all necessary control functions for normal operation. The controls provided by the Operating Panel are arranged in logical functional groups. This offers you clear and easy operation with fast access to key functionality.
  • Page 38 Simrad ST90 Reference Manual Main Switch Power Press this button to turn the ST90 system on and off. Note Before you turn on the ST90 system, make sure that you have sufficient water depth to lower the transducer! You must never turn on the ST90 system when the ship is in dry dock. The transducer may be damaged if it transmits in open air.
  • Page 39 Getting started Symbol These buttons control the target markers functionality. Place Marker This is the same function as the option on the shortcut menus. Place Marker allows you to create a marker at the current position of the cursor. Place Marker One or more markers can be placed in the view to identify specific echoes.
  • Page 40 Simrad ST90 Reference Manual Mode The four buttons in the field are dedicated for user settings or presentation Mode modes. To choose which function to apply open the page. Under Operating Panel , assign one predefined setting to each button on the Operating User Setting Buttons Panel.
  • Page 41 Getting started Cursor buttons offer menu and cursor control. Cursor Menu This is an "on/off" function. Unless you need to make frequent changes to the operating parameters, you may want to hide the menu from the display presentation. This gives you more space for echo information. When the menu is hidden, it is temporarily shown on the left or right side of the display presentation if you move the cursor to that position.
  • Page 42 Simrad ST90 Reference Manual Mute button on the Operating Panel enables or disables the audio output. It Mute does not provide volume control. Use it to acknowledge audible alarms and to acknowledge messages from the message system. Zoom Place the cursor anywhere in the view, right-click and press .
  • Page 43 Getting started Note The priority is identified with a "P". Only one single object can be given priority status. If you create a new marker and give this priority, the position track is disabled. The same applies if you start a new target track. Relevant information about the priority target can be found in the lower left corner of the view.

  • Page 44: Operating Panel Description (Mk2)

    Simrad ST90 Reference Manual Operating Panel description (Mk2) The ST90 Operating Panel is the most important device for fast and efficient user interface.The Operating Panel offers all necessary control functions for normal operation. The controls provided by the Operating Panel are arranged in logical functional groups. This offers you clear and easy operation with fast access to key functionality.
  • Page 45 Getting started Sonar Select Since the Mk2 Operating Panel uses Ethernet to communicate with the Processor Unit, you can use one single panel to control more than one sonar system. To change which sonar to control, press on the Operating Panel. If you use your Operating Sonar Select Panel to control more than two sonars, press repeatedly to select.
  • Page 46 Simrad ST90 Reference Manual Mouse buttons These buttons correspond to the two most common buttons on a standard computer mouse. When an instruction tells you to "select" or "left-click", press the left button. When an instruction tells you to "right-click", press the right button.
  • Page 47 Getting started Gear Press to place a gear symbol in the active view. The gear symbol is provided Gear as a tool to help you plan and shoot the purse seine. The symbol is intended to be used in a structured sequence that starts when you plan to shoot the purse seine. Position Track Target Track Press these buttons to start position or target tracking.

  • Page 48: Operating Panel Description (Mk3)

    Simrad ST90 Reference Manual Operating Panel description (Mk3) The ST90 Operating Panel is the most important device for fast and efficient user interface.The Operating Panel offers all necessary control functions for normal operation. The controls provided by the Operating Panel are arranged in logical functional groups. This offers you clear and easy operation with fast access to key functionality.
  • Page 49 Getting started Down Press to lower the transducer to its bottom position. Down While the transducer is moving the indicator lamp flashes, and an audible signal is sounded. When the requested position has been reached, the indicator lamp is lit, and the audible signal stops.
  • Page 50 Simrad ST90 Reference Manual object has this priority, the status is transferred to the new object. The priority is identified with a "P". Set Priority Target One marker can be given priority status to identify the object as the most important target or position.
  • Page 51 Getting started Before you can change the settings related to a view, you must click inside the view to activate it. The changes you make are by default only valid for the active view. Several of the functions offer . If you select your setting is applied to all Apply to All Apply to All...

  • Page 52: Microsoft Xbox Controller Description

    Processor Unit. The operating system will recognize the device and automatically load the necessary drivers. Note The Xbox Controller is a commercial item. It is not included in the delivery from Kongsberg Maritime. Bearing function controls the horizontal direction of the Vertical view, the audio Bearing beam and the inspection beam.
  • Page 53 Getting started The range setting defines from how "far" you want to detect echoes. In other words, you specify the horizontal or vertical distance from the vessel to the outer edge of the search area. Note Even though you can choose a large range value, that does not mean that you can detect your targets on the same range.

  • Page 54: Starting Normal Operation

    Simrad ST90 Reference Manual Starting normal operation Topics Turning on the ST90 system for normal use, page 52 Getting to know the user interface, page 54 Getting to know presentation modes and views, page 57 Selecting Normal mode to start pinging, page 61...
  • Page 55 Getting started The blue indicator light in the button flashes while the Operating Panel establishes contact with the Processor Unit. When the connection has been made, the blue indicator light is lit permanently. Wait while the operating system and ST90 program is loaded and started.

  • Page 56: Getting To Know The User Interface

    Simrad ST90 Reference Manual Getting to know the user interface The display presentation provided by the ST90 system consists of specific visual elements that work together. The visual elements provide you with the echo information you need, they help you to control the functionality needed to understand this information, and finally, they allow you to control the operational parameters.
  • Page 57 Getting started Top bar Sonar views Menu system Secondary menus Bottom bar Procedure Move the cursor to the top bar, and investigate the functions provided. Observe that small tooltips open to identify the various functions you can use. The top bar is located at the top of the display presentation and stretches from the far left to the far right.
  • Page 58 Simrad ST90 Reference Manual Observe the information pane "buttons" on the top bar. The ST90 system offers several information panes to provide additional and detailed data from the presentations. Each information pane is opened and closed from the top bar.

  • Page 59: Getting To Know Presentation Modes And Views

    Getting started Getting to know presentation modes and views The display presentation offered by the ST90system presents several views. Different combinations of views are organized in presentation modes. Context The ST90 system presents the echo data in different views. All information from each ping is shown in all the views simultaneously.
  • Page 60 Simrad ST90 Reference Manual The distance from the vessel symbol in the centre of the circle to the outer ring corresponds to the currently selected range. • The current settings for range, gain and tilt are shown in the upper left corner of the view.
  • Page 61 Getting started At the bottom of the display presentation, select a suitable presentation mode, and activate the 270 Vertical view. The 270 Vertical view is designed for purse seining. The presentation combines a horizontal "bow up" presentation with a vertical slice. By default, the vertical view is shown in the lower left corner of the presentation.
  • Page 62 Simrad ST90 Reference Manual The Echogram view provides echo data from a horizontal beam in a common echogram presentation. The echo data is taken from the current bearing and tilt. The beam used to provide data is identified in the top left corner of the view. Horizontal dotted lines show the depth intervals.

  • Page 63: Selecting Normal Mode To Start Pinging

    Getting started The ST90 system offers an inspection beam. The inspection beam is presented using an Inspection view. You can train and tilt the beam independent of the beams displayed in the other views. You can use the Inspection view to study single fish, schools and bottom conditions in detail.

  • Page 64: Adjusting The Radius Of The Search Area

    Simrad ST90 Reference Manual Procedure Open the menu. Operation to Normal. Operation function controls the operating mode of the ST90 system. Normal Operation mode allows the ST90 system to transmit ("ping") through the water, and to receive the echoes. to Maximum.
  • Page 65 Getting started Note The range value selected and shown is by default only used by the active view. Even though you can choose a large range value, that does not mean that you can detect your targets on the same range. The range value only defines the range that is shown in the views.

  • Page 66: Adjusting The Echo Sensitivity

    Simrad ST90 Reference Manual Place the cursor on the button. Press and hold the left mouse button. Move the cursor horizontally over the button. Release the mouse button when requested value is shown. Select the middle of the button to open it. If you have a keyboard connected to the ST90 system, type the requested value.
  • Page 67 Getting started The echo strength (A) changes with time. The minimum level of detection (B) is adjusted up or down with the function. Increasing the with a more positive number reduces Gain Gain the minimum level, and this increases the sensitivity. Only echoes over the minimum level are shown in the echogram (C).

  • Page 68: Changing The Vertical Angle Of The Sonar Beams

    Simrad ST90 Reference Manual Place the cursor on the button. Press and hold the left mouse button. Move the cursor horizontally over the button. Release the mouse button when requested value is shown. Select the middle of the button to open it. If you have a keyboard connected to the ST90 system, type the requested value.
  • Page 69 Getting started • If you use a very small tilt (C) you are not bothered by bottom echoes. However, if the sea surface is gusty you will see echoes from the waves. These echoes are normally rather weak, and they hardly move in relation to your vessel. •...

  • Page 70: Adjusting The Horizontal Direction Of The Sonar Beam

    Simrad ST90 Reference Manual Open the button and select if you wish to use the chosen setting in all the Apply to all views in the current presentation mode. Related topics Getting started, page 34 Starting normal operation, page 52...
  • Page 71 Getting started Procedure Click in the view you want to activate. The active view is identified with a thicker border. Unless you use the Apply to all function, all changes you make will only be applied to this view. Use the joystick to make the adjustment. Optionally: Turn the relevant rotary switch to make the adjustment.

  • Page 72: Turning Off The St90 System

    Simrad ST90 Reference Manual Turning off the ST90 system When you do not use the ST90 system, turn it off. Select on the top bar to turn Power Off off the ST90 system. You can also use the button on the Operating Panel. You must Power never turn off the ST90 system by means of the on/off switch on the Processor Unit.

  • Page 73: Basic Operating Procedures

    Getting started Basic operating procedures Topics Selecting the language displayed in the menus and dialog boxes, page 71 Selecting operating frequency for minimum noise, page 72 Hiding the menu system when you do not need it, page 73 Saving single or sequential screen captures, page 74 Saving the current user settings, page 75 Defining the ping (transmission) modes, page 76 Selecting the language displayed in the menus and dialog...

  • Page 74: Selecting Operating Frequency For Minimum Noise

    Simrad ST90 Reference Manual Related topics Getting started, page 34 Basic operating procedures, page 71 Language function, page 456 Selecting operating frequency for minimum noise function is used to control the centre frequency of the acoustic transmissions Frequency (pings). You can select any operational frequency from 14 to 24 kHz. All types of noise matter when you wish to find the best operating frequency.

  • Page 75: Hiding The Menu System When You Do Not Need It

    Getting started Select Start Noise Measurements On the menu, change the setting while observing the noise value. Active Frequency Note frequencies with high noise levels, and try to avoid using them. The factory default settings include operating frequency. If you apply these settings remember to make the appropriate changes afterwards.

  • Page 76: Saving Single Or Sequential Screen Captures

    Simrad ST90 Reference Manual Related topics Getting started, page 34 Basic operating procedures, page 71 Saving single or sequential screen captures While using the ST90 system you may wish to make a screen capture to save an instantaneous copy of the current presentation. Each screen capture you make is saved in format on the Processor Unit hard disk.

  • Page 77: Saving The Current User Settings

    Getting started Saving a sequence of screen captures: Select on the top bar to start the sequence. Screen Capture Select one more time to stop the sequence. Screen Capture Related topics Getting started, page 34 Basic operating procedures, page 71 Saving the current user settings When you have spent some time working with the ST90 system, you are probably using specific settings that you know are efficient for your purpose.

  • Page 78: Defining The Ping (Transmission) Modes

    Simrad ST90 Reference Manual If you do not have a computer keyboard connected to your ST90 system, select the button to open an on-screen keyboard. Keyboard Select to save the chosen name. Observe that the name you have chosen appears on the list.

  • Page 79: Context-Sensitive Online Help

    Getting started to Maximum. Transmission Mode • Select the symbol on the right side of the button to start pinging. • Select the symbol on the left side the button to stop pinging. • Select the middle of the button to open it. If you choose Maximum, the ST90 system will transmit (ping) continuously and as often as possible.
  • Page 80 Simrad ST90 Reference Manual To open the help system, select in any dialog box. This will provide instantaneous Help information about the relevant dialog box. Links to related procedures and topics are provided. To navigate in the help file, use the menu system on the left side and the interactive links within the publication.

  • Page 81: Operating Procedures

    Operating procedures Operating procedures Topics Getting started, page 80 Choosing operating mode and key transmit parameters, page 84 Controlling the gain and range settings, page 94 Using the markers and tracking features, page 104 Improving the recognition of fish and schools using receiver filters, page 117 Recording and replaying echo data, page 126 Recording and exporting processed echo data, page 133 Capturing the display presentation in image and video files, page 138...

  • Page 82: Getting Started

    Simrad ST90 Reference Manual Getting started Topics Turning on the ST90 system, page 80 Lowering and hoisting the transducer from the user interface, page 82 Turning off the ST90 system, page 83 Turning on the ST90 system To use the ST90 system, you must first turn it on. To turn on the ST90 system use the button on the Operating Panel.
  • Page 83 Operating procedures Once the program has started, observe that the display presentation fills the entire screen. The program starts up using the same settings as the last time you used it. If these settings are acceptable, continue operation. If you wish to alter any of the settings, see the relevant procedures.

  • Page 84: Lowering And Hoisting The Transducer From The User Interface

    Simrad ST90 Reference Manual Lowering and hoisting the transducer from the user interface The Operating Panel controls the lowering and hoisting of the transducer. Dedicated buttons are provided for the physical transducer locations. You can also control the transducer movements from the top bar.

  • Page 85: Turning Off The St90 System

    Operating procedures Related topics Operating panels, page 35 Operating procedures, page 79 Getting started, page 80 Hull Unit Control dialog box, page 510 Turning off the ST90 system When you do not use the ST90 system, turn it off. Select on the top bar to turn Power Off off the ST90 system.

  • Page 86: Choosing Operating Mode And Key Transmit Parameters

    Simrad ST90 Reference Manual Choosing operating mode and key transmit parameters Topics Selecting Normal mode to start pinging, page 84 Selecting Replay mode, page 85 Selecting Inactive mode, page 87 Setting up the ST90 system for maximum echo refresh rate, page 88...

  • Page 87: Selecting Replay Mode

    Operating procedures function controls the operating mode of the ST90 system. Normal Operation mode allows the ST90 system to transmit ("ping") through the water, and to receive the echoes. to Maximum. Transmission Mode function enables or disables the ST90 transmissions into the Transmission Mode water.
  • Page 88 Simrad ST90 Reference Manual : Select this button to stop the playback. Stop : Select this button to start the playback, or to pause it. Play/Pause : Select this slider and move it sideways to adjust the replay speed. Replay Speed : The button shows you which file you are replaying.

  • Page 89: Selecting Inactive Mode

    Operating procedures Selecting Inactive mode Inactive mode is provided to pause the operation temporarily. Neither transmission nor reception takes place. The current echoes are removed from the display presentation. Context function controls the operating mode of the ST90 system. Operation Note Note that Inactive operating mode is not the same as Passive mode.

  • Page 90: Setting Up The St90 System For Maximum Echo Refresh Rate

    Simrad ST90 Reference Manual Setting up the ST90 system for maximum echo refresh rate You can set up the ST90 system to transmit (ping) as often as possible. This gives you the maximum refresh rate. Context to control how often the ST90 Transmission Mode system shall transmit its energy into the water.

  • Page 91: Transmitting Single Pings

    Operating procedures Transmitting single pings You can set up the ST90 system to transmit a single ping only when you want it. Context to control how often the ST90 Transmission Mode system shall transmit its energy into the water. For normal use, choose Maximum.

  • Page 92: Transmitting With Fixed-Time Intervals

    Simrad ST90 Reference Manual Transmitting with fixed-time intervals You can set up the ST90 system to transmit pings with a fixed time interval. Context to control how often the ST90 Transmission Mode system shall transmit its energy into the water. For normal use, choose Maximum.

  • Page 93: Adjusting The Output Power To Match Varying Conditions

    Operating procedures Adjusting the output power to match varying conditions You are permitted to adjust the output power from the ST90 system. is used to Tx Power control the amount of power that is transmitted with each ping. Context Most users operate the ST90 system with set to Maximum.

  • Page 94: Selecting The Best Operating Frequency

    Simrad ST90 Reference Manual Related topics Operating procedures, page 79 Choosing operating mode and key transmit parameters, page 84 Tx Power function, page 433 Selecting the best operating frequency function is used to control the centre frequency of the acoustic transmissions Frequency (pings).
  • Page 95 Operating procedures Select Start Noise Measurements On the menu, change the setting while observing the noise value. Active Frequency Note frequencies with high noise levels, and try to avoid using them. The factory default settings include operating frequency. If you apply these settings remember to make the appropriate changes afterwards.

  • Page 96: Controlling The Gain And Range Settings

    Simrad ST90 Reference Manual Controlling the gain and range settings Topics Adjusting the gain (echo sensitivity), page 94 Adjusting the TVG (Time Variable Gain) setting, page 96 Adjusting the sonar range, page 97 Expanding the range within the sonar view, page 98...
  • Page 97 Operating procedures The echo strength (A) changes with time. The minimum level of detection (B) is adjusted up or down with the function. Increasing the with a more positive number reduces Gain Gain the minimum level, and this increases the sensitivity. Only echoes over the minimum level are shown in the echogram (C).

  • Page 98: Adjusting The Tvg (Time Variable Gain) Setting

    Simrad ST90 Reference Manual Place the cursor on the button. Press and hold the left mouse button. Move the cursor horizontally over the button. Release the mouse button when requested value is shown. Select the middle of the button to open it. If you have a keyboard connected to the ST90 system, type the requested value.

  • Page 99: Adjusting The Sonar Range

    Operating procedures Related topics Operating procedures, page 79 Controlling the gain and range settings, page 94 TVG function, page 467 Adjusting the sonar range Some echoes are close, others are further away. It is often necessary to adjust the radius of the search area.

  • Page 100: Expanding The Range Within The Sonar View

    Simrad ST90 Reference Manual Optionally: Observe the menu. Main Its default location is on the right side of the display presentation. Select Range Make the necessary adjustment. The following methods can be used to adjust this setting: Select [+] or [-] to choose the requested setting.

  • Page 101: Adjusting The Intensity Of The Echo Presentations

    Operating procedures This function can be used if you wish to move your ship symbol to the bottom of the view. You can then expand the range without adding zoom. Procedure Open the menu. Display Locate the function. View Range to expand the range shown in the relevant views to any percentage of View Range the original...

  • Page 102: Changing The Tilt

    Simrad ST90 Reference Manual Adjust the setting to fit your requirements. To change the setting, move the cursor to either side of the button. Select the left side of the button to decrease the value. Select the right side of the button to increase the value.
  • Page 103 Operating procedures • If you use a very small tilt (C) you are not bothered by bottom echoes. However, if the sea surface is gusty you will see echoes from the waves. These echoes are normally rather weak, and they hardly move in relation to your vessel. •...

  • Page 104: Adjusting The Bearing

    Simrad ST90 Reference Manual Open the button and select if you wish to use the chosen setting in all the Apply to all views in the current presentation mode. Related topics Operating procedures, page 79 Controlling the gain and range settings, page 94...
  • Page 105 Operating procedures Procedure Click in the view you want to activate. The active view is identified with a thicker border. Unless you use the Apply to all function, all changes you make will only be applied to this view. Use the joystick to make the adjustment. Optionally: Turn the relevant rotary switch to make the adjustment.

  • Page 106: Using The Markers And Tracking Features

    Simrad ST90 Reference Manual Using the markers and tracking features Topics Starting a position track, page 104 Starting a target track, page 105 Placing a new marker, page 107 Deleting a marker, page 108 Measuring the size of a school relative to the purse seine, page 108...

  • Page 107: Starting A Target Track

    Operating procedures Procedure Place the cursor over the echo you wish to track. Press on the Operating Panel. Position Track Place the cursor over the echo you wish to track. Right-click to open the shortcut menu. Select Initiate Track Result The marker is shown as a small triangle with or without a short identifying label.
  • Page 108 Simrad ST90 Reference Manual its position relative to your own vessel. You must decide which echoes that shall be classified as targets, and whether you shall start manual or automatic target tracking. The bearing and tilt settings are automatically adjusted to follow the movements of the tracked target.

  • Page 109: Placing A New Marker

    Operating procedures Related topics Operating panels, page 35 Objects menu, page 400 Shortcut menus, page 412 Operating procedures, page 79 Using the markers and tracking features, page 104 Placing a new marker One or more markers can be placed in the view to identify specific echoes. Each marker is shown as a small triangle with or without a short identifying label.

  • Page 110: Deleting A Marker

    Simrad ST90 Reference Manual Deleting a marker There are two ways to delete a marker.You can use the shortcut menu, or select Delete in the menu. Objects Context You can delete a single marker, or multiple markers simultaneously, by selecting Delete menu.

  • Page 111: Using Visual Aids During The Purse Seine Catch Phase

    Operating procedures Context You can only add one circle marker to the display presentation. Procedure Position the cursor where you wish to place the circle marker. Press on the Operating Panel. Circle Marker Right-click and select on the shortcut menu. Place Circle Marker The size and location of the marker is defined by the choices you have made with function.
  • Page 112 Simrad ST90 Reference Manual Procedure At the bottom of the display presentation, select a suitable presentation mode, and activate the Catch view. To start the process: Press on the Operating Panel. Gear Right-click and select on the shortcut menu. Show Gear Symbol This places a circle marker in the view.

  • Page 113: Selecting A Geographical Area For Accurate Target Tracking

    Operating procedures Related topics Operating panels, page 35 Objects menu, page 400 Shortcut menus, page 412 Operating procedures, page 79 Using the markers and tracking features, page 104 Changing the fishing gear properties to match your own equipment, page 115 Choosing the fishing gear in use, page 114 Selecting a geographical area for accurate target tracking When you have an echo you wish to track, the tracking functionality places a geographical...
  • Page 114 Simrad ST90 Reference Manual Use the function to define the size of the area that you want to detect Tracking Area moving objects in. Further requirements Use the dialog box to change the size of the predefined area sizes. Tracking Area Setup...

  • Page 115: Defining The Physical Size Of The Tracking Area

    Operating procedures Defining the physical size of the tracking area When you have an echo you wish to track, the tracking functionality places a geographical area around the object. An invisible area - the tracking area - is created as an acquisition area.

  • Page 116: Choosing The Fishing Gear In Use

    Simrad ST90 Reference Manual Make the necessary adjustments. Select to save the selected settings and close the dialog box. Further requirements Use the dialog box to change the size of the predefined area sizes. Tracking Area Setup Related topics Operating procedures, page 79...

  • Page 117: Changing The Fishing Gear Properties To Match Your Own Equipment

    Operating procedures Related topics Operating procedures, page 79 Using the markers and tracking features, page 104 Changing the fishing gear properties to match your own equipment, page 115 Using visual aids during the purse seine catch phase, page 109 Fishing Gear function, page 454 Fishing Gear Setup page, page 602 Add Fishing Gear dialog box, page 509 Changing the fishing gear properties to match your own...
  • Page 118 Simrad ST90 Reference Manual Select to save the selected settings and close the dialog box. Related topics Operating procedures, page 79 Using the markers and tracking features, page 104 Choosing the fishing gear in use, page 114 Using visual aids during the purse seine catch phase, page 109...

  • Page 119: Improving The Recognition Of Fish And Schools Using Receiver Filters

    Operating procedures Improving the recognition of fish and schools using receiver filters Topics About the receiver filter sequence in the ST90 system, page 118 Reducing noise and reverberation with the AGC (Automatic Gain Control) function, page 119 Reducing propeller noise and interference with the Noise Filter, page 120 Reducing bottom and surface reverberation with the RCG (Reverberation Controlled Gain) function, page 121 Reducing noise and false echoes with the Ping-Ping Filter, page 123...

  • Page 120: About The Receiver Filter Sequence In The St90 System

    Simrad ST90 Reference Manual About the receiver filter sequence in the ST90 system The filters in the ST90 system are implemented in “series”. Any changes to a filter setting may therefore have an effect on subsequent filters. Bottom Filter Noise Filter (1) Gain &...

  • Page 121: Reducing Noise And Reverberation With The Agc (Automatic Gain Control) Function

    Operating procedures Reducing noise and reverberation with the AGC (Automatic Gain Control) function Identifying echoes from fish and schools can often be challenging when they are hidden by noise and reverberation. When sonar conditions are poor, effective tuning of the filters in the ST90 system may be necessary to achieve a satisfactory result.

  • Page 122: Reducing Propeller Noise And Interference With The Noise Filter

    Simrad ST90 Reference Manual Select (Automatic Gain Control). Select a value from the options provided. The choice you make is by default only applied to the currently selected (active) view. Select the middle of the button to open a small menu with the available options. Select the left side of the button to select a "lower"' menu choice.

  • Page 123: Reducing Bottom And Surface Reverberation With The Rcg (Reverberation Controlled Gain) Function

    Operating procedures Select Noise Filter Select a value from the options provided. Related topics Operating procedures, page 79 Improving the recognition of fish and schools using receiver filters, page 117 Noise Filter function, page 488 Reducing bottom and surface reverberation with the RCG (Reverberation Controlled Gain) function When you transmit an acoustic pulse into the water to search for a target, echoes will also be returned from any other objects in the beam.
  • Page 124 Simrad ST90 Reference Manual The algorithms in the filter may interpret scattered fish as reverberation. Use reverberation controlled gain carefully if you wish to detect scattered fish. We recommend that the reverberation controlled gain is active all the time, but be careful in the vertical presentation.The filter works best on small schools.

  • Page 125: Reducing Noise And False Echoes With The Ping-Ping Filter

    Operating procedures The choice you make is by default only applied to the currently selected (active) view. Related topics Operating procedures, page 79 Improving the recognition of fish and schools using receiver filters, page 117 RCG (Reverberation Controlled Gain) function, page 484 Reducing noise and false echoes with the Ping-Ping Filter analyses the historical information from previous consecutive pings in Ping-Ping Filter...

  • Page 126: Reducing The Strong Bottom Echo To See Fish Close To The Seabed

    Simrad ST90 Reference Manual Related topics Operating procedures, page 79 Improving the recognition of fish and schools using receiver filters, page 117 Ping-Ping Filter function, page 469 Reducing the strong bottom echo to see fish close to the seabed Fish close to the bottom can be hard to see because they may be hidden in the strong bottom echo.

  • Page 127: Adjusting The Intensity Of The Echo Presentations

    Operating procedures Adjusting the intensity of the echo presentations The effect of the adjustment is minimized if you apply (Reverberation Controlled Gain Gain) and (Automatic Gain Control). The is applied at the end of the Display Gain filter sequence in the ST90 system. This means that you can use if you are not Display Gain completely satisfied with the results of the automatic gain functionality.

  • Page 128: Recording And Replaying Echo Data

    Simrad ST90 Reference Manual Recording and replaying echo data Topics Defining the file and folder settings for data recording, page 126 Recording echo data, page 127 Accessing the echo data files to delete, move or copy them, page 128 Selecting Replay mode, page 129...

  • Page 129: Recording Echo Data

    Operating procedures Procedure Open the menu. Operation Select Output Observe that the dialog box opens. This dialog box contains a number of pages Output selected from the menu on the left side. Select to open the page. File Setup Choose the required settings. Select to save your choice.

  • Page 130: Accessing The Echo Data Files To Delete, Move Or Copy Them

    Simrad ST90 Reference Manual Note The data files will normally become very large. If you wish to record large amounts of data, make sure that you have enough space on your hard disk. The ST90 system is not provided with unlimited disk capacity. We recommend that you save the data files to an external storage device.

  • Page 131: Selecting Replay Mode

    Operating procedures If you have a computer keyboard connected, press to open the file manager. ⊞ ⊞ ⊞ Win+E Without a keyboard: Select on the right side of the top bar. Minimize From the Windows ® button, right-click to open File Explorer. Start In the file manager utility, locate the folder you defined in the dialog box.
  • Page 132 Simrad ST90 Reference Manual : The button shows you which file you are replaying. Select the button to Replay File open the dialog box. Replay File : This bar shows you the progress of the replay sequence. If you Playback Progress have chosen to restart the replay file(s) automatically (in a loop), the green indicator starts from left every time the file restarts.

  • Page 133: Choosing Which Echo Data File(S) To Replay

    Operating procedures Choosing which echo data file(s) to replay When you record echo data the information is stored on the Processor Unit hard disk. Depending on your initial settings, the files can also be stored on an external storage device. The echo data files can be retrieved and played back on the ST90 system.
  • Page 134 Simrad ST90 Reference Manual to Replay. Operation The replay bar opens automatically. It is positioned directly below the top bar at the top of the display presentation. Related topics Operating procedures, page 79 Recording and replaying echo data, page 126...

  • Page 135: Recording And Exporting Processed Echo Data

    Operating procedures Recording and exporting processed echo data Topics Defining the processed data recording parameters, page 133 Recording processed data, page 134 Accessing the processed data files to delete, move or copy them, page 136 Defining the processed data recording parameters The ST90 system allows you to record processed data.

  • Page 136: Recording Processed Data

    Simrad ST90 Reference Manual Select Output Observe that the dialog box opens. This dialog box contains a number of pages Output selected from the menu on the left side. Select to open the page. Processed Data to File Select an output type from the list.
  • Page 137 Operating procedures data. In Replay mode the ST90 system is not able to transmit ("ping"). For this reason, the ST90 system is inactive during playback. • Use on the menu to record processed data. This is only an Record Processed Operation export format.

  • Page 138: Accessing The Processed Data Files To Delete, Move Or Copy Them

    Simrad ST90 Reference Manual Accessing the processed data files to delete, move or copy them function provided by the ST90 system allows you to save processed Record Processed data on a selected format. You can save the data to the hard disk, or onto an external storage device.
  • Page 139 Operating procedures Related topics Recording and exporting processed echo data, page 133 Operating procedures, page 79 Record Processed function, page 436 442704/A...

  • Page 140: Capturing The Display Presentation In Image And Video Files

    Simrad ST90 Reference Manual Capturing the display presentation in image and video files Topics Capturing the display presentation in an image, page 138 Capturing the display presentation using one image for each ping, page 139 Choosing screen capture mode, page 140...

  • Page 141: Capturing The Display Presentation Using One Image For Each Ping

    Operating procedures Note Operating Panel (Mk1): Press to make a screen capture. Record Result Each screen capture you make is saved in format on the Processor Unit hard disk. .jpg The files are located in the following folder: C:\Users\Public\Documents\Simrad\ST90\ScreenDumps Related topics Operating procedures, page 79 Capturing the display presentation in image and video files, page 138 Capturing the display presentation in an image, page 138...

  • Page 142: Choosing Screen Capture Mode

    Simrad ST90 Reference Manual Select on the top bar to start the sequence. Screen Capture You can also use the button on the Operating Panel. Screen Capture Note Operating Panel (Mk1): Press to make a screen capture. Record Select one more time to stop the sequence.

  • Page 143: Accessing The Screen Capture Images To Delete, Move Or Copy Them

    Operating procedures Note Operating Panel (Mk1): Press to make a screen capture. Record Procedure Open the menu. Setup Select Screen Captures Select screen capture mode. In Single mode one screen capture is taken every time you select Screen Capture the top bar. In Sequence mode a new screen capture is created for every ping.

  • Page 144: Capturing The Display Presentation In A Video File

    Simrad ST90 Reference Manual Procedure Prepare a data storage device. Select on the right side of the top bar. Minimize Open a file manager utility. On the computer keyboard, press to open the file manager. ⊞ ⊞ ⊞ Win+E From the Windows ®...

  • Page 145: Selecting Where To Save The Video Files

    Operating procedures Context Everything that happens in the presentation is recorded. This includes echoes, menus, dialog boxes and cursor movements. Each screen recording you make is saved in format on .mp4 the Processor Unit hard disk. The file name reflects the current date and time. Note Video data files will normally become very large.
  • Page 146 Simrad ST90 Reference Manual Note Video data files will normally become very large. If you wish to record large amounts of data, make sure that you have enough space on your hard disk. Unless your Processor Unit is equipped with a very large disk, we recommend that you save the data to an external storage device.

  • Page 147: Setting Up Presentation Modes And Views

    Operating procedures Setting up presentation modes and views Topics Moving a view to another display, page 145 Rearranging the layout of the echo presentations, page 146 Restoring the locations and sizes of the views, page 147 Moving a view to another display Each operating mode is presented with a set of views.

  • Page 148: Rearranging The Layout Of The Echo Presentations

    Simrad ST90 Reference Manual Related topics Operating procedures, page 79 Setting up presentation modes and views, page 145 Moving a view to another display, page 145 Rearranging the layout of the echo presentations, page 146 Restoring the locations and sizes of the views, page 147...

  • Page 149: Restoring The Locations And Sizes Of The Views

    Operating procedures Press the mouse button, and keep it depressed to drag the selected view to another position in the ST90 presentation. The docking positions show you where to drag and drop the selected view. Any view can selected, and then repositioned as indicated by the docking positions. Related topics Operating procedures, page 79 Setting up presentation modes and views, page 145...
  • Page 150 Simrad ST90 Reference Manual Related topics Operating procedures, page 79 Setting up presentation modes and views, page 145 Moving a view to another display, page 145 Rearranging the layout of the echo presentations, page 146 Restoring the locations and sizes of the views, page 147...

  • Page 151: Defining The Visual Information In The Sonar Views

    Operating procedures Defining the visual information in the sonar views Topics Selecting true or relative motion behaviour in the views, page 149 Placing data from a sea current sensor in the sonar view, page 150 Adding markers for external objects to the echo presentation, page 151 Selecting true or relative motion behaviour in the views In selected views you can control how the vessel symbol shall "behave"...

  • Page 152: Placing Data From A Sea Current Sensor In The Sonar View

    Simrad ST90 Reference Manual Placing data from a sea current sensor in the sonar view A current sensor can be connected to the ST90 system. This can for example be an acoustic Doppler current profiler (ADCP). The information from this sensor is presented in the applicable views.

  • Page 153: Adding Markers For External Objects To The Echo Presentation

    Operating procedures Adding markers for external objects to the echo presentation Position information from external objects such as buoys, fish aggregating devices and other similar items can be imported into the ST90 system. The external objects are shown as hexagonal markers in the echo presentation. Prerequisites A suitable receiver system must be connected to the Processor Unit.

  • Page 154: Using Maps

    Simrad ST90 Reference Manual Using maps Topics Enabling and disabling the map presentation, page 152 Selecting which map elements to include in the display presentation, page 153 Setting up the presentation of the depth lines in the map, page 154...

  • Page 155: Selecting Which Map Elements To Include In The Display Presentation

    Map Display Select which map elements you want to include. Note These map settings are only valid for WMS (Web Map Service) maps from a KONGSBERG navigation system. Select to save the selected settings and close the dialog box. Related topics...

  • Page 156: Setting Up The Presentation Of The Depth Lines In The Map

    Simrad ST90 Reference Manual Setting up the presentation of the depth lines in the map Once a map service has been chosen, use to choose which map elements to Map Display include in the map presentation. The page allows you to change the safety Safety Depth depth settings, and thus the presentation of the various water depths.
  • Page 157 Operating procedures Choose map provider, then insert relevant information to make the connection. Only WMS (World Map Service) maps from a KONGSBERG navigation system are supported. Type the correct URL to make contact with the map server. Select to save the selected settings and close the dialog box.

  • Page 158: Defining Settings Related To User Preferences And Individual Customizing

    Simrad ST90 Reference Manual Defining settings related to user preferences and individual customizing Topics Selecting menu language, page 156 Hiding the menu system, page 157 Placing the menu on the left side of the display presentation, page 158 Selecting the information to appear on the top bar, page 158...

  • Page 159: Hiding The Menu System

    Operating procedures Select the middle of the button to open the list of available options. Language Select the language you wish to use. Result All the texts in the user interface are changed to the selected language. The context sensitive on-line help may also be available in your language. To change the language in the on-line help, you may need to restart the ST90 system.

  • Page 160: Placing The Menu On The Left Side Of The Display Presentation

    Simrad ST90 Reference Manual Related topics Operating procedures, page 79 Defining settings related to user preferences and individual customizing, page 156 Menu, page 311 Placing the menu on the left side of the display presentation The menu system is by default located on the right side of the display presentation. You can move the menu system to the left side of the presentation.The...

  • Page 161: Enabling Coordinated Universal Time (Utc) On The Bottom Bar

    Operating procedures Procedure Open the menu. Display Select Display Options Observe that the dialog box opens. Display Options Select to open the page. General In the list, select the information you want to see on the top bar. Top Bar Select to save the selected settings and close the dialog box.

  • Page 162: Selecting Which Tooltips To Appear In The User Interface

    Simrad ST90 Reference Manual Select to save the selected settings and close the dialog box. Related topics Operating procedures, page 79 Defining settings related to user preferences and individual customizing, page 156 General page, page 530 Selecting which tooltips to appear in the user interface When you move the cursor over the echoes in the display presentation, small "tooltips"...

  • Page 163: Adjusting The Backlight Intensity On The Operating Panel

    Operating procedures Adjusting the backlight intensity on the Operating Panel The buttons on the Operating Panel have built-in backlight to improve visibility on a dark bridge. Context to control the intensity of the lights. Panel Backlight Procedure Open the menu. Display Select Panel Backlight...

  • Page 164: Increasing The Visibility Of The Information Panes

    Simrad ST90 Reference Manual Select a setting that fits your requirements. Screen Brightness To change the setting, move the cursor to either side of the button. Select the left side of the button to decrease the value. Select the right side of the button to increase the value.

  • Page 165: Changing The Colour Palette ("Skin") Used In The Display Presentations

    Operating procedures Changing the colour palette ("skin") used in the display presentations Depending on the ambient light, it is possible to change the colours the ST90 system uses in its display presentation. This can help you see the information better. The function Palette allows you to choose which colour theme ("skin") to be used by the ST90 system.

  • Page 166: Selecting Measurement Units

    Simrad ST90 Reference Manual scale is based on the standard 12-colour scale. Additional colours Smooth Echosounder have been added between them to make smoother colour transitions. Procedure Open the menu. Display Select Colour Setup Observe that the dialog box opens.

  • Page 167: Configuring The Environmental Parameters

    Operating procedures On the menu, select Setup Installation Observe that the dialog box opens. This dialog box contains a number of Installation pages selected from the menu on the left side. On the left side of the dialog box, select Installation Units Adjust the settings to fit your requirements.

  • Page 168: Setting Up The Alarm Limits For System Protection

    Simrad ST90 Reference Manual Related topics Operating procedures, page 79 Defining settings related to user preferences and individual customizing, page 156 Environment dialog box, page 455 Setting up the alarm limits for system protection Safe operation of the ST90 system is made possible using multiple sensors that monitor the operation and the performance.
  • Page 169 Operating procedures Tx Inhibit Hull Unit Position If the transducer is activated when out of the water it may be damaged beyond repair. With the transducer fully retracted, no transmissions ("pings") take place. When you lower the transducer into the water, you can specify a vertical position for when the transmissions start.
  • Page 170 Simrad ST90 Reference Manual Screen Recording We recommend that you do not make any changes to these settings. Recording We recommend that you do not make any changes to these settings. At the bottom of the page, select to save your settings.

  • Page 171: Saving, Retrieving And Handling User Settings

    Operating procedures Saving, retrieving and handling user settings Topics Saving the current user settings, page 169 Choosing previously saved user settings, page 170 Renaming existing user settings, page 171 Deleting user settings that are no longer used, page 172 Choosing factory default settings, page 173 Saving the current user settings When you have spent some time working with the ST90 system, you are probably using specific settings that you know are efficient for your purpose.

  • Page 172: Choosing Previously Saved User Settings

    Simrad ST90 Reference Manual If you do not have a computer keyboard connected to your ST90 system, select the button to open an on-screen keyboard. Keyboard Select to save the chosen name. Observe that the name you have chosen appears on the list.

  • Page 173: Renaming Existing User Settings

    Operating procedures Select the setting you want to use. Select Activate Selected Setting Select to apply your changes and close the dialog box. User Settings Related topics Saving, retrieving and handling user settings, page 169 Renaming existing user settings An existing user setting can easily be renamed. Context dialog box is used to store your favourite settings.

  • Page 174: Deleting User Settings That Are No Longer Used

    Simrad ST90 Reference Manual Observe that the name you have chosen appears on the list. Saved Settings Select to apply your changes and close the dialog box. User Settings Related topics Saving, retrieving and handling user settings, page 169 Deleting user settings that are no longer used...

  • Page 175: Choosing Factory Default Settings

    Operating procedures Related topics Saving, retrieving and handling user settings, page 169 Choosing factory default settings Sometimes it may be useful to reset the ST90 system to work with a set of known user settings. A set of "factory settings" is provided for this purpose. The factory settings may be put to use if you are uncertain of which values to use.

  • Page 176: Defining The User-Selected Features On The Operating Panel

    Simrad ST90 Reference Manual Defining the user-selected features on the Operating Panel Topics Selecting which Operating Panel to use, page 174 Assigning user settings or presentation modes to the Operating Panel, page 175 Assigning functions to the rotary switches on the Operating Panel, page 177...

  • Page 177: Assigning User Settings Or Presentation Modes To The Operating Panel

    Operating procedures When you work in the dialog box, you must always select to save the Installation Apply changes made on a page. You must do this before you continue working on a different page. Procedure Open the menu. Setup On the menu, select Setup...
  • Page 178 Simrad ST90 Reference Manual Context page is used to select which physical hardware panel you use, and to Operating Panel assign functionality to the programmable buttons. This page is located in the Installation dialog box. The dialog box is located on the menu.

  • Page 179: Assigning Functions To The Rotary Switches On The Operating Panel

    Operating procedures Related topics Defining the user-selected features on the Operating Panel, page 174 Operating Panel page, page 587 Assigning functions to the rotary switches on the Operating Panel The Mk2 Operating Panel is fitted with three rotary switches. The Mk3 Operating Panel is fitted with two rotary switches.

  • Page 180: Assigning Functions To F1, F2 And F3 On The Operating Panel (Mk2)

    Simrad ST90 Reference Manual Active Ping Bearing This is the bearing setting in the currently active view. Active Ping Tilt This is the tilt setting in the currently active view Procedure Open the menu. Setup On the menu, select Setup...
  • Page 181 Operating procedures page is used to select which physical Operating Panel hardware panel you use, and to assign functionality to the programmable buttons. This page is located in the dialog box. The dialog box is Installation Installation located on the menu.
  • Page 182 Simrad ST90 Reference Manual Auto Bearing This is an "on/off" function. Set this function to On to start the automatic search function. In the Auto Bearing mode the ST90 system will automatically search within defined sector limits. The sector is identified in the view using two angular symbols.

  • Page 183: Exporting Sensor Data, Marker Positions And Technical Information

    Operating procedures Exporting sensor data, marker positions and technical information Topics Exporting target markers, page 181 Exporting sensor data to a peripheral system, page 183 Exporting technical information, page 184 Exporting target markers Under normal use, the ST90 system presents several different echoes simultaneously. Some of these are clearly more interesting than others.
  • Page 184 Simrad ST90 Reference Manual Select an output type from the list. Select the communication port you want to use. Select which marker type to export. Select to save the output format. Select to save your choices. Apply If you want to check the communication parameters, select...

  • Page 185: Exporting Sensor Data To A Peripheral System

    Operating procedures Exporting sensor data to a peripheral system The information provided to the ST90 system from various sensors can also be useful for other systems on board. The ST90 system allows you to export the same sensor data that was originally imported.

  • Page 186: Exporting Technical Information

    Simrad ST90 Reference Manual If you want to check the data flow on the selected port, select Monitor In order to see this data traffic, your ST90 system must be active and transmitting information to the peripheral system. dialog box provides one text box for incoming messages (...
  • Page 187 Operating procedures The total size of the selected files is shown below the list. Select to locate the desired folder. Browse You can also type the folder name. If you do not have a computer keyboard connected to your ST90 system, select the button to open an on-screen keyboard.

  • Page 188: Maintenance Procedures

    Simrad ST90 Reference Manual Maintenance procedures Topics Lowering and hoisting the transducer from the sonar room, page 187 Setting up the interfaces to peripheral devices, page 195 Inserting the installation parameters, page 215 Installing and maintaining software, page 230 Testing the noise conditions and the sonar functionality, page 254...

  • Page 189: Lowering And Hoisting The Transducer From The Sonar Room

    Maintenance procedures Lowering and hoisting the transducer from the sonar room Topics Lowering and hoisting the transducer using the Hoist/Lower Switch, page 188 Lowering and hoisting the transducer using the hand crank, page 190 Emergency lowering and hoisting using the two contactors, page 192 442704/A...

  • Page 190: Lowering And Hoisting The Transducer Using The Hoist/Lower Switch

    Simrad ST90 Reference Manual Lowering and hoisting the transducer using the Hoist/Lower Switch The Operating Panel controls the lowering and hoisting of the transducer. Dedicated buttons are provided for the physical transducer locations. You can also do this from the Motor Control Unit.
  • Page 191 Maintenance procedures Locate the (S302). Hoist/Lower Switch Lowering the transducer: Set the switch to position LOWER. Lowering is automatically stopped when the is activated. If Lower Limit Switch necessary, the transducer can be stopped in any position by setting the Hoist/Lower to STOP.

  • Page 192: Lowering And Hoisting The Transducer Using The Hand Crank

    Simrad ST90 Reference Manual Lowering and hoisting the transducer using the hand crank The Operating Panel controls the lowering and hoisting of the transducer. In case of a power failure the transducer can be hoisted or lowered manually by means of a hand crank.
  • Page 193 Maintenance procedures WARNING High voltages are used. This equipment must be serviced only by qualified personnel familiar with high-voltage equipment and the potential hazards involved. Failure to observe this precaution could result in bodily injury. You may be exposed to electric shock. Read and understand the applicable first aid instructions related to electric shock.

  • Page 194: Emergency Lowering And Hoisting Using The Two Contactors

    Simrad ST90 Reference Manual Related topics Maintenance procedures, page 186 Lowering and hoisting the transducer from the sonar room, page 187 Emergency lowering and hoisting using the two contactors In case of emergency it is possible to bypass the control logic in the Motor Control Unit.
  • Page 195 Maintenance procedures Procedure Make sure that you have sufficient water depth below the keel before you lower the transducer. If your vessel is in dry dock, make sure that you have sufficient height between the hull and the dry dock floor. The space under the hull must be free from tools, scaffolding, personnel and other obstacles.
  • Page 196 Simrad ST90 Reference Manual Related topics Maintenance procedures, page 186 Lowering and hoisting the transducer from the sonar room, page 187 442704/A...

  • Page 197: Setting Up The Interfaces To Peripheral Devices

    Maintenance procedures Setting up the interfaces to peripheral devices Topics Installing navigation sensors and other sensors, page 195 Defining the serial and Ethernet (LAN) port parameters, page 196 Setting up the input from a navigation system (GPS), page 198 Setting up the interface for speed log input, page 201 Setting up the interface for course gyro input, page 203 Configuring the sensor interface, page 205 Setting up the input from a motion reference unit (MRU), page 207...

  • Page 198: Defining The Serial And Ethernet (Lan) Port Parameters

    Simrad ST90 Reference Manual Procedure Open the menu. Setup On the menu, select Setup Installation Observe that the dialog box opens. This dialog box contains a number of Installation pages selected from the menu on the left side. Set up the interfaces to the navigation sensors.
  • Page 199 Maintenance procedures • You are familiar with NMEA and other relevant datagram formats. • You know how to set up the parameters for serial and local area network (LAN) communication. • The relevant communication parameters required for the sensor interface are known. Context page provides two lists;...

  • Page 200: Setting Up The Input From A Navigation System (Gps)

    Simrad ST90 Reference Manual Some instruments may provide other parameters and/or options. You must always check the relevant technical documentation supplied by the manufacturer. Select to save the selected settings and close the dialog box. At the bottom of the page, select to save your settings.
  • Page 201 Maintenance procedures each relevant sensor you must insert the offset values that define the its physical location relative to the vessel’s coordinate system. Note Just making changes and selecting at the bottom of the page will not install anything. Select what to install, define the relevant parameters, and then select Procedure Connect the navigation system to an available communication port on your computer.
  • Page 202 Simrad ST90 Reference Manual 12 Provide the accurate physical location of the sensor (or its antenna) with reference to the vessel’s coordinate system. The position of certain sensors must be defined as an offset to the Ship Origin in the coordinate system to maximize performance.

  • Page 203: Setting Up The Interface For Speed Log Input

    Maintenance procedures Setting up the interface for speed log input In order to operate correctly, the ST90 system requires input from a speed log. In most cases a suitable sensor is already installed on the vessel. A global positioning system (GPS) with a compatible output format can also be used.
  • Page 204 Simrad ST90 Reference Manual Procedure Connect the speed log to an available communication port on your computer. This is described in the Installation Manual. Open the menu. Setup On the menu, select Setup Installation Observe that the dialog box opens. This dialog box contains a number of Installation pages selected from the menu on the left side.

  • Page 205: Setting Up The Interface For Course Gyro Input

    Maintenance procedures Further requirements On the left side of the dialog box, select . Define the priority Installation Sensor Configuration of the datagrams, and set up relevant configuration parameters. Related topics Maintenance procedures, page 186 Setting up the interfaces to peripheral devices, page 195 Sensor Installation page, page 565 Setting up the interface for course gyro input In order to operate correctly, the ST90 system requires input from a course gyro.
  • Page 206 Simrad ST90 Reference Manual list of valid datagram formats, select the format(s) to be accepted by the ST90 system. For each relevant sensor you must insert the offset values that define the its physical location relative to the vessel’s coordinate system.

  • Page 207: Configuring The Sensor Interface

    Maintenance procedures 12 Provide the accurate physical location of the sensor (or its antenna) with reference to the vessel’s coordinate system. The position of certain sensors must be defined as an offset to the Ship Origin in the coordinate system to maximize performance. These offset values are all required to allow the ST90 system to give you as accurate information as possible.
  • Page 208 Simrad ST90 Reference Manual • The new sensor is physically connected to the ST90 system using a serial or network cable. • The interface port is set up with the correct communication parameters. • The input from the navigation sensor is defined in the user interface. The relevant interface parameters and physical location properties for the sensor are defined.

  • Page 209: Setting Up The Input From A Motion Reference Unit (Mru)

    Maintenance procedures • With enabled, the priority list is used. Information is imported from the sensor Auto at the top of the list. If the sensor fails to provide information for more than 20 seconds, data from the next sensor is used. •...
  • Page 210 Simrad ST90 Reference Manual Context The motion reference unit (MRU) measures the roll and pitch movements of the vessel. Some sensor models also measure heave. The information provided by the motion sensor is used by the ST90 system to stabilize the beams.

  • Page 211: Setting Up The St90 System For Synchronized Operation

    Maintenance procedures When the ST90 system has started, proceed to the page Motion Reference Unit to put the communication port to use. On the left side of the dialog box, select Installation Motion Reference Unit Set up the interface. If you select to use the LAN port, the ST90 system will automatically use the built-in motion sensor.
  • Page 212 Simrad ST90 Reference Manual • The vessel is berthed or at sea. • You have an RS2-232 interface port on your computer that allows you to use the CTS/RTS connections. For "slave" operation, a remote system (for example K-Sync or Simrad TU40) must be available to provide trigger pulses.
  • Page 213 Maintenance procedures The ST90 system operates using its internal ping interval parameters, independent of any trigger signals arriving at the synchronization port. setting is not applicable when synchronization is Synchronization Delay switched off. • Master Master mode is used if the ST90 system is going to act as the controlling unit in a synchronized system.

  • Page 214: Setting Up Input From Buoys, Fish Aggregating Devices And Other External Objects

    Simrad ST90 Reference Manual This is the interface port currently used to transmit or receive synchronization signals. It must be an RS-232 serial port. Since the synchronization function only uses the Request To Send (RTS) and Clear To Send (CTS) signals on a serial port, you may be able to use a port that is already assigned other interface purposes.
  • Page 215 Maintenance procedures Note Just making changes and selecting at the bottom of the page will not install anything. Select what to install, define the relevant parameters, and then select Procedure Connect the receiver to an available communication port on the Processor Unit. This is described in the Installation Manual.
  • Page 216 Simrad ST90 Reference Manual 14 Continue your work in the dialog box, or select to close it. Installation Further requirements On the left side of the dialog box, select . Define the priority Installation Sensor Configuration of the datagrams, and set up relevant configuration parameters.

  • Page 217: Inserting The Installation Parameters

    Maintenance procedures Inserting the installation parameters Topics Inserting the ship origin and dimensions, page 215 Inserting the installation parameters for the transducer, page 218 Inserting the installation parameters for the motion reference unit (MRU), page 221 Adjusting the built-in motion sensor offset, page 224 Adjusting the stabilization offsets for the external motion sensor, page 226 Inserting the ship origin and dimensions When you have several different sensors and transducers on your vessel, and you wish each...
  • Page 218 Simrad ST90 Reference Manual If you want to change the location of the Ship Origin, you can do this by providing offset values in the X, Y and/or Z directions. To do this you will need the ship drawings. It is common practice to place the Ship Origin at the same position as the motion reference unit (MRU).
  • Page 219 Maintenance procedures Result A common reference point for the sensors and transducer has now been established. Further requirements You must proceed by defining the locations of the navigation system antenna, the motion reference sensor, and the transducer. These locations are all referenced to the same reference point.

  • Page 220: Inserting The Installation Parameters For The Transducer

    Simrad ST90 Reference Manual Inserting the installation parameters for the transducer When the installation trunk is mounted, it may not be positioned with the mounting holes perfectly aligned to the centre line of the vessel. When the hull unit is placed on the trunk, the "forward"...
  • Page 221 Maintenance procedures On the page, define this angle as rotation around Z. Transducer • If the 0° transducer mark points to the starboard (right) side of the vessel’s centre line, insert the alignment as a number between 0 and +180 degrees. •...
  • Page 222 Simrad ST90 Reference Manual : Insert the vertical distance on the Z axis between the transducer and Z Offset the Ship Origin. Obtain the rotation (angle) information from the personnel that installed the hull unit. Insert the values. Do this as accurately as possible.

  • Page 223: Inserting The Installation Parameters For The Motion Reference Unit (Mru)

    Maintenance procedures Inserting the installation parameters for the motion reference unit (MRU) The physical location of the motion reference unit (MRU) relative to the transducer is required to allow the ST90 system to adjust for roll and pitch as accurately as possible. This task is only applicable is you are using an external motion reference unit on your ST90 system.
  • Page 224 Simrad ST90 Reference Manual horizontal and/or vertical planes. We strongly recommend that you install your motion reference unit so that all rotation angles can be set to 0 (zero). The required accuracy of the offset and rotation angles depends on the accuracy requirements for the echo data.
  • Page 225 Do this as accurately as possible. Note The Kongsberg Seapath ® - and other GPS systems - allow you to define the MRU location in the positioning system. If this is done, the MRU offset values in the ST90 system must be set to 0 (zero) to avoid "dual compensation".

  • Page 226: Adjusting The Built-In Motion Sensor Offset

    Simrad ST90 Reference Manual Adjusting the built-in motion sensor offset The information from a motion reference unit (MRU) (normally heave, roll and pitch information) is imported into the ST90 system to increase the accuracy of the echo data. The ST90 system is provided with a built-in motion sensor to provide electronic stabilization of the sonar beams.
  • Page 227 Maintenance procedures • If the 0° reference mark for the built-in motion sensor points to the starboard (right) side of the vessel’s centre line (as shown in the illustration), insert the offset as a number between 0 and +180 degrees. •...

  • Page 228: Adjusting The Stabilization Offsets For The External Motion Sensor

    Simrad ST90 Reference Manual At the bottom of the page, select to save your settings. Apply Continue your work in the dialog box, or select to close it. Installation Related topics Maintenance procedures, page 186 Inserting the installation parameters, page 215...
  • Page 229 Maintenance procedures installed. This sensor may be mounted anywhere on the vessel. Because of this, the risk of stabilization offset misalignment is present. The two screen captures below illustrate how the ST90 system can provide inaccurate data if the stabilization offset is misaligned. In both examples, the tilt is set to approximately 24 degrees, and you are looking at the echoes from a flat bottom at a very short range.
  • Page 230 Simrad ST90 Reference Manual Note Do not confuse stabilization offset with installation offset. The installation offset values describe the physical location and orientation of an item, and how this location is related to the vessel's coordinate system. The stabilization offset values describe any misalignments related to the measurements a sensor make.
  • Page 231 Maintenance procedures If necessary: Adjust the stabilization offsets. Open the menu. Setup Open the function. Stabilization Adjust the settings. Roll Offset Pitch Offset Select [—] on the left side to decrease the value, or select [+] on the right side to increase.

  • Page 232: Installing And Maintaining Software

    Simrad ST90 Reference Manual Installing and maintaining software Topics Installing a new version of the operating software, page 230 Removing the operating software, page 232 Updating the online help system, page 233 Adding online help in a new language, page 234...
  • Page 233 Maintenance procedures Procedure On the personal computer: Download the new software version. Unpack the ZIP file to access the executable application file. Copy the application file to a USB flash drive. Turn on the Processor Unit. Make the following preparations. If applicable: Connect the keyboard and the mouse to USB sockets on the front panel of the Processor Unit.

  • Page 234: Removing The Operating Software

    Simrad ST90 Reference Manual Removing the operating software If you wish to replace your Processor Unit with a new model, or simply do not wish to use the ST90 system any longer, you can remove the software. Software removal may also be required during an upgrade.

  • Page 235: Updating The Online Help System

    Procedure Obtain the new help file. Download the help file from our website to a local computer. • https://www.kongsberg.com/st90 Unpack the ZIP file, and place all the files in a folder named HTML Copy the folder to a USB flash drive.

  • Page 236: Adding Online Help In A New Language

    Simrad ST90 Reference Manual Select on the top bar. Power Off In the dialog box, select to close the ST90 Power Off Exit to Operating System program. From the Windows ® button, right-click to open File Explorer. Start Navigate to the folder with the on-line help files.
  • Page 237 Maintenance procedures Context The context-sensitive online help is provided using a WebHelp installation using HTML format. It uses the default web browser on the computer. The help system comprises a large number of files. Language codes = Folder names da = Danish is = Icelandic sv = Swedish de = German...

  • Page 238: Obtaining And Installing A Software License For Additional Functionality

    Simrad ST90 Reference Manual Create a folder for the new language. Make sure that you use the correct folder name. We use the language codes defined by ISO 639-1. Copy the entire folder from the USB flash drive to the language folder.
  • Page 239 Maintenance procedures NetCDF The ST90 system supports netCDF4, where the number refers to the version of the format. SONAR-NetCDF4 is a data and metadata convention for storage of data from active sonars in NetCDF4 formatted files, defined by The International Council for the Exploration of the Sea (ICES).

  • Page 240: Setting Up The Operating Panel (Mk2)

    Simrad ST90 Reference Manual If necessary, select the license string on the left side, and click the arrow button [>] to move it to the list. Currently active licenses Select and then to save all the parameters and close the...
  • Page 241 Maintenance procedures ST90 157.237.60.14 AC:1F:6B:1D:42:E6 If the text file is missing you must find the information manually. We suggest that you do this, and create the necessary folder and txt file before you start the setup process. See step 1 in the procedure. Note If the Operating Panel fails to establish contact with the Processor Unit it will time out and switch itself off after two minutes.
  • Page 242 Simrad ST90 Reference Manual Observe the "Physical Address" (MAC address) for the relevant Ethernet adapter. Write down the information. Close the window. Command Prompt Select the adapter that the Operating Panel is connected to. On the ST90 system, the Ethernet adapter is named Simrad Connect.

  • Page 243: Using More Than One Operating Panel To Control The Sonar (Mk2)

    Maintenance procedures Type or copy the IP address into the relevant box. Type or copy the MAC address into the relevant box. Select ADD Sonar PC Observe that your Processor Unit is added to the list. Close the web browser. Make sure that the Operating Panel is functional.
  • Page 244 Simrad ST90 Reference Manual • Ethernet switch Make sure that your selected Ethernet switch has a large bandwidth capacity. Minimum 1 Gb (1000BASE-T) is required. • Ethernet cables It is very important that high-quality Ethernet cables are used. You must use CAT-5E STP (Shielded Twisted Pair) quality or better.
  • Page 245 Maintenance procedures Do not connect the Operating Panel to the Ethernet switch. Ethernet cables An Ethernet switch connected to ETH1 on the rear side of the Processor Unit can also be used to interface other peripheral systems such as echo sounders and positioning systems. You can also connect the Olex system to the ST90 system using this Ethernet switch.
  • Page 246 Simrad ST90 Reference Manual Note Each Operating Panel must have a different IP Address. None of the panels must use the default IP Address. Select Apply IP Configuration When the new IP Address has been set in the Operating Panel, you will loose contact with the configuration page.

  • Page 247: Using A Single Operating Panel To Control More Than One Sonar (Mk2)

    Maintenance procedures To re-establish contact, use the following URL in your browser: 157.237.60.xx:5000 Select on the top menu to open the page. Sonar PCs Configuration Obtain the IP address. Type or copy the IP address into the relevant box. Obtain the MAC address. Type or copy the MAC address into the relevant box.
  • Page 248 Simrad ST90 Reference Manual • Ethernet switch Make sure that your selected Ethernet switch has a large bandwidth capacity. Minimum 1 Gb (1000BASE-T) is required. • Ethernet cables It is very important that high-quality Ethernet cables are used. You must use CAT-5E STP (Shielded Twisted Pair) quality or better.
  • Page 249 Maintenance procedures Make sure that you use the correct Ethernet socket on the rear side of the computer: ETH1 Connect the power cable from the Ethernet switch to the AC power outlet. Ethernet cables An Ethernet switch connected to ETH1 on the rear side of the Processor Unit can also be used to interface other peripheral systems such as echo sounders and positioning systems.
  • Page 250 Simrad ST90 Reference Manual The IP and MAC addresses for your Processor Unit are contained in a text file named . If the text file is missing you must find the information IPandMACaddress.txt manually. Obtain the IP address. ® In the bottom-left corner of your desktop, select the Windows button.

  • Page 251: Updating The Operating Panel Support Applications (Mk2)

    Maintenance procedures Make sure that the Operating Panel is functional. Make sure that the blue indicator is lit, and check that you can move the cursor on the screen. On the computer desktop, double-click the ST90 icon to start the program. Press on the Operating Panel.
  • Page 252 Simrad ST90 Reference Manual • HIDS • MSS • SPS • vJoy Device Driver Refer to the Software changes chapter in the software release note to see which applications that needs to be updated. Procedure On the personal computer: Download the new software version.

  • Page 253: Updating The Firmware On The Operating Panel (Mk2)

    Maintenance procedures Copy the file to a temporary folder on the "C" drive. Double-click on the file to install the new version of thew application. Close File Explorer. Remove the USB flash drive. On the Processor Unit desktop, double-click the ST90 icon to start the program. If applicable: Disconnect the keyboard and the mouse from the Processor Unit.
  • Page 254 Simrad ST90 Reference Manual Note The software release note may contain additional details related to the firmware update. Procedure Locate the firmware update file: SOPupdate.zip If you use a separate computer: Copy the file to a folder on your computer, but do not unpack it.
  • Page 255 Maintenance procedures Note If you have previously changed the IP Address on the Operating Panel, you must use this address to open the configuration page. Do the firmware update. In the browser window, select Update Select Perform update Locate the firmware update file and select Open Select when prompted to update.

  • Page 256: Testing The Noise Conditions And The Sonar Functionality

    Simrad ST90 Reference Manual Testing the noise conditions and the sonar functionality Topics Checking the status of the transceiver boards, page 254 Checking the transducer by means of the Diagnostics functionality, page 256 Measuring the noise in passive mode, page 260...
  • Page 257 Maintenance procedures • : This is a warning. A closer investigation is recommended. Yellow • : This is an alarm. A closer investigation is required. • : A device monitored by the diagnostic system is disabled. Blue • : No information is available. Grey dialog box and functionality is only provided for performance monitoring.

  • Page 258: Checking The Transducer By Means Of The Diagnostics Functionality

    Simrad ST90 Reference Manual Select to open the page. Transceiver page provides a graphic presentation of the transceiver boards. The Transceiver visual presentation reflects the physical location of the boards in the Transceiver Unit. Only static information is provided. The...
  • Page 259 Maintenance procedures • The ST90 system is turned on and operates normally. • The ST90 system is in Normal mode, but is set to Off to prevent transmissions. TX Power • The transducer is retracted to its upper position. • The vessel is berthed or at sea. We recommend that the test is done with the vessel at sea. Caution You must never set the ST90 system to "ping"...
  • Page 260 Simrad ST90 Reference Manual Select the default settings. On the menu, select Main User Settings Observe the list. Factory Settings Select the setting you want to use. Select Activate Selected Setting Select to apply your changes and close the dialog box.
  • Page 261 Maintenance procedures Which actions to take if single channels fail depend on the operational impact, the overall performance of the ST90 system, and a cost/benefit assessment. The most important factor in the cost/benefit assessment is whether you need to replace the transducer, or just a single transceiver board.

  • Page 262: Measuring The Noise In Passive Mode

    Simrad ST90 Reference Manual Related topics Maintenance procedures, page 186 Testing the noise conditions and the sonar functionality, page 254 Transducer page, page 549 Measuring the noise in passive mode Low noise is a key factor for high quality and reliable measurements. The performance of the ST90 system will always be limited by different noise sources.
  • Page 263 Maintenance procedures Procedure Make sure that you have sufficient water depth below the keel before you lower the transducer. Lower the transducer to its bottom position. Select the default settings. On the menu, select Main User Settings Observe the list. Factory Settings Select the setting you want to use.

  • Page 264: Making A Noise/Speed Curve To Determine Vessel Noise

    Simrad ST90 Reference Manual Result For each transmit frequency (in kHz), write down the measured noise levels (in dB). Frequency Maximum Average 70 kHz XXXXX kHz 90 kHz Related topics Maintenance procedures, page 186 Testing the noise conditions and the sonar functionality, page 254...
  • Page 265 Maintenance procedures If you do this tests in a busy harbour, or with noise sources present, the sensitive receivers will detect all the noise in the nearby waters. Context To measure the noise, observe the noise values provided on the page in the Noise Diagnostics...
  • Page 266 Simrad ST90 Reference Manual Open the menu. Operation to Normal. Operation to Off. Tx Power Open the menu. Active (Time Variable Gain) to 0 log R. to Off. Ping-Ping Filter to CW Short. Pulse Type to the start frequency: Frequency to Omni.
  • Page 267 Maintenance procedures Finish the test. Close the dialog box. Diagnostics Hoist the transducer back up to its upper position. Result Speed/Frequency/Noise Speed Frequency Noise level Sea state: 442704/A...

  • Page 268: Measuring Flow Noise

    Simrad ST90 Reference Manual Speed/Frequency/Noise Speed Frequency Noise level Water depth: Use this table to record the values. Print it out and make multiple copies. Alternatively, you can type the values straight into a spreadsheet. Related topics Maintenance procedures, page 186...
  • Page 269 Maintenance procedures • As much machinery as possible must be turned off. It is particularly important to turn off electrical motors, as well as cooling systems and hydraulic pumps that may cause electric noise. • To prevent interference, all other hydroacoustic instruments must be turned off. Note With the vessel in port, the environmental conditions are not satisfactory.
  • Page 270 Simrad ST90 Reference Manual Illustration: Read the noise value from the noise circle. Use the mean value of the readouts at 0 degrees (straight up). Procedure Make sure that you have sufficient water depth below the keel before you lower the transducer.
  • Page 271 Maintenance procedures Ask the bridge to abruptly turn off all engine power and - if possible - change the pitch of the propellers to zero. Read the noise value from the noise circle. For every knot the speed is reduced, read the noise. (If you find it more convenient, type the data directly into the spreadsheet.) Fill in the result table.
  • Page 272 Simrad ST90 Reference Manual Speed/Frequency/Noise Speed Frequency Noise level Sea state: Water depth: Use this table to record the values. Print it out and make multiple copies. Alternatively, you can type the values straight into a spreadsheet. 442704/A...
  • Page 273 Maintenance procedures Related topics Maintenance procedures, page 186 Testing the noise conditions and the sonar functionality, page 254 Noise page, page 552 442704/A...

  • Page 274: Preventive Maintenance

    Simrad ST90 Reference Manual Preventive maintenance Topics Preventive maintenance schedule, page 273 Requirements for personnel and tools, page 275 Approved anti-fouling paints, page 276 Preventive maintenance procedures, page 278 Accessing the inside of the installation trunk, page 299 442704/A...

  • Page 275: Preventive Maintenance Schedule

    Maintenance procedures Preventive maintenance schedule In order to secure a long and trouble-free operation of the ST90 system, certain specific preventive maintenance tasks must be done. The tasks are organized in a preventive maintenance schedule. Note Even though a preventive maintenance schedule is provided, the ST90 system must be inspected regularly.
  • Page 276 Simrad ST90 Reference Manual Actions to be taken every month Once a month we recommend that you inspect and clean the various main units comprised by the ST90 system. Inspect the sonar room. Make sure that the ambient temperature in the room meets the environmental specifications.

  • Page 277: Requirements For Personnel And Tools

    Maintenance procedures Related topics Maintenance procedures, page 186 Preventive maintenance, page 272 Preventive maintenance schedule, page 273 Inspecting and replacing sacrificial anodes, page 294 Visual inspection of the installation trunk, page 286 Inspecting and cleaning the transducer face, page 288 Painting the transducer face, page 291 Actions to be taken whenever required The hull unit was lubricated as a part of the production process.

  • Page 278: Approved Anti-Fouling Paints

    Simrad ST90 Reference Manual Approved anti-fouling paints This is our list of approved antifouling paints for all transducer types. Always refer to the manufacturer's documentation and data sheets for a complete procedure and for relevant safety information. Important Do not paint the transducer with traditional hull plating paint. Use only the correct type of approved paint specified.
  • Page 279 Maintenance procedures International Marine Coatings • : International Marine Coatings Manufacturer • Stoneygate Lane, Felling, Gateshead, Tyne & Wear, NE10 0JY United Kingdom Address: • www.international-marine.com Manufacturer’s website Products: • Intersleek 1100SR – : Intersleek 737 Primer Apply 50 µm dry film thickness. –...

  • Page 280: Preventive Maintenance Procedures

    Simrad ST90 Reference Manual Preventive maintenance procedures Topics Checking the environmental conditions in the sonar room, page 278 Inspecting and cleaning the display, page 279 Inspecting and cleaning the Processor Unit, page 280 Inspecting and cleaning the Operating Panel, page 281...
  • Page 281 Maintenance procedures Measure the relative humidity in the room. Compare the readings with the environmental requirements for the ST90 system. Make sure that neither the room itself nor any of the system units have been subjected to corrosive attacks. Take the necessary corrective actions if the environmental conditions are poor. Related topics Maintenance procedures, page 186 Preventive maintenance, page 272...
  • Page 282 Simrad ST90 Reference Manual Related topics Maintenance procedures, page 186 Preventive maintenance, page 272 Preventive maintenance schedule, page 273 Preventive maintenance procedures, page 278 Environmental requirements, page 655 Inspecting and cleaning the Processor Unit To ensure long and trouble-free operation of the Processor Unit it must be inspected and cleaned at regular intervals.
  • Page 283 Maintenance procedures Inspecting and cleaning the Operating Panel To ensure long and trouble-free operation of the Operating Panel it must be inspected and cleaned at regular intervals. Prerequisites No special tools are required for this task. You will however need a commercially available mild detergent and a lint free cloth.
  • Page 284 Simrad ST90 Reference Manual Procedure Note Do not open the unit. There are no serviceable parts inside. High voltages are used. You may be exposed to electric shock. Make sure that the Transceiver Unit is kept clean and dry. Make sure that the unit is not exposed to excessive dust and vibrations.
  • Page 285 Maintenance procedures Context All Heatex’ heat exchangers [...] have been designed in such a way that dirt is prevented from coming into contact with the heat transfer surfaces. Most of the dirt that is contained in the air will just pass through the heat exchanger since it has been designed in a correct way.
  • Page 286 Simrad ST90 Reference Manual Note During the years, the heat exchanger has been redesigned several times. Although its appearance has changed, the operational principles, use and maintenance actions have remained the same. Procedure Remove the front panel. Remove the bolts indicated in the illustration.
  • Page 287 Maintenance procedures Related topics Maintenance procedures, page 186 Preventive maintenance, page 272 Preventive maintenance schedule, page 273 Preventive maintenance procedures, page 278 Environmental requirements, page 655 Visual inspection of the hull unit Regular inspections of the hull unit is required to make sure that it operates properly. Prerequisites Neither tools nor instruments are required.
  • Page 288 Simrad ST90 Reference Manual Make sure that the transducer cables can move freely when the transducer is lowered and hoisted. [Bridge]: Hoist the transducer to its upper position. Related topics Maintenance procedures, page 186 Preventive maintenance, page 272 Preventive maintenance schedule, page 273...
  • Page 289 Maintenance procedures Cover the opening in the installation trunk with a solid wooden or steel plate to protect the transducer. Do a close visual inspection of the blister and the hull plating close to the installation trunk. Remove marine growth. Apply anti-fouling paint to protect the hull plating and prevent marine growth.
  • Page 290 Simrad ST90 Reference Manual Inspecting and cleaning the transducer face Marine growth (biological fouling) on the transducer face reduces the performance. For this reason, it is important to keep the transducer face clean. Every time your vessel is in dry dock, you must remove the marine growth. At the same time, you must inspect the transducer closely for physical damage.
  • Page 291 Maintenance procedures • Do not step on the transducer cables. • Do not damage the transducer cables. Avoid exposure to sharp objects. Procedure Make sure that all power to the hull unit is disconnected. Make sure that you have sufficient height between the hull and the dry dock floor. Lowering the transducer Use a spanner to open the door on the Motor Control Unit.
  • Page 292 Simrad ST90 Reference Manual Note Do not use high-pressure water, sandblasting, metal tools or strong solvents to clean the transducer. Do not damage the outer protective skin of the transducer. Allow the transducer surface to dry. Do a thorough visual inspection of the transducer.
  • Page 293 Maintenance procedures Painting the transducer face Marine growth (biological fouling) on the transducer face reduces the performance. We recommend that you paint the transducer face immediately after installation, and then again as often as required to maintain the protection. It is particularly important to do this if you operate in waters with a lot of marine growth.
  • Page 294 The anti-fouling paint will reduce the acoustical performance of the transducer. The surface roughness of the transducer substrate and the thickness of the paint may also influence the performance. Kongsberg Maritime cannot be held responsible for any negative consequences of the anti-fouling paint.
  • Page 295 Maintenance procedures Abrade the transducer surface using a sanding paper with 240 inch grit size. Do not exceed a surface roughness (R ) of 35 microns as this can influence the transducer performance. Remove all dust. Apply the primer, and let it dry. Apply the paint.
  • Page 296 If the sacrificial anodes need to be replaced, you will need the necessary spare items as well as mounting materials. Contact your local dealer or distributor, or the Kongsberg Maritime support organization, for spare parts. • : 629-204660 Kongsberg Maritime part number •...
  • Page 297 Manufacturer’s website • : 450826 Kongsberg Maritime part number Context The hull unit was lubricated as a part of the production process. It was thus provided fully lubricated when delivered to the vessel. During normal conditions, the lubricant applied will last for a long period of time.
  • Page 298 Simrad ST90 Reference Manual Note Do not use grease on the hoisting spindle. Use a machine oil that is insoluble in water, does not dry out, and can withstand the rotation without causing stains. Procedure Inspect the ball bearings on the top and the bottom of the hoisting spindle.
  • Page 299 Manufacturer’s website • : 654-079835 Kongsberg Maritime part number Context The hull unit was lubricated as a part of the production process. It was thus provided fully lubricated when delivered to the vessel. During normal conditions, the lubricant applied will last for a long period of time.
  • Page 300 Simrad ST90 Reference Manual Related topics Maintenance procedures, page 186 Preventive maintenance, page 272 Preventive maintenance schedule, page 273 Preventive maintenance procedures, page 278 442704/A...

  • Page 301: Accessing The Inside Of The Installation Trunk

    Maintenance procedures Accessing the inside of the installation trunk Topics Accessing the installation trunk by lowering the transducer, page 299 Accessing the installation trunk by lifting the hull unit, page 301 Accessing the installation trunk by lowering the transducer To do a visual inspection of the inside surface of the installation trunk you need access. Access is also required to inspect and or replace the sacrificial anodes.
  • Page 302 Simrad ST90 Reference Manual installation or cleaning. Any holes and/or scratches in the transducer surface will allow water to penetrate the transducer. If a leak occurs, the transducer must be replaced. Procedure Make sure that the ST90 system is turned off.
  • Page 303 Maintenance procedures Use an 4 mm Allen key to rotate the screw clockwise until the motor brake is released. Turn the crank until the transducer is fully lowered. Hoisting the transducer Turn the crank until the transducer is fully retracted. Loosen the brake release screw to engage the motor brake.
  • Page 304 Simrad ST90 Reference Manual Context The upper parts of the hull unit include the mechanical gantry, the hoist motor, the hoisting spindle and the Motor Control Unit. The transducer shaft is supported by the gantry, and penetrates the mounting flange. The transducer cable is placed inside the transducer shaft.
  • Page 305 Maintenance procedures Make sure that you do not damage the delicate parts of the hull unit. Note Make sure that you do not damage the transducer or any of the cables. Watch the hull unit carefully during the lift to prevent the delicate parts from being damaged, stuck or hooked on to protruding objects.
  • Page 306 Simrad ST90 Reference Manual First, tighten all the nuts to finger tight. Then work alternately on opposite sides of the construction. Use the following torque: 140 Nm Related topics Visual inspection of the installation trunk, page 286 Inspecting and replacing sacrificial anodes, page 294...

  • Page 307: User Interface

    User interface User interface Topics User interface familiarization, page 306 Top bar, page 308 Replay bar description, page 324 Sonar views, page 326 Using markers in the ST90 user interface, page 346 About target tracking, page 357 About position tracking, page 359 Information panes, page 363 Bottom bar, page 373 442704/A...

  • Page 308: User Interface Familiarization

    Simrad ST90 Reference Manual User interface familiarization By default, the display presentation covers the entire screen. The display presentation provided by the ST90 system consists of specific visual elements that work together. The visual elements provide you with the echo information you need, they help you to control the functionality needed to understand this information, and finally, they allow you to control the operational parameters.
  • Page 309 User interface Sonar views Different sonar views are provided. Combinations of these views are organized in presentation modes selectable on the bottom bar. Information panes The ST90 system offers several information panes to provide additional and detailed data from the presentations. The information panes are opened and closed from the top bar.

  • Page 310: Top Bar

    Simrad ST90 Reference Manual Top bar Topics Top bar overview, page 308 Logo and product name, page 310 Menu, page 311 Screen Recording, page 311 Screen Capture, page 312 Record, page 313 Hull Unit, page 314 Information panes overview, page 315...
  • Page 311 User interface Screen Recording function allows you to record and save the echo presentation as Screen Recording a video file. Select on the top bar to start and stop the recording. Screen Recording Screen Capture Select to make a copy of the entire display presentation. Screen Capture Record indicator shows you when recording is active.

  • Page 312: Logo And Product Name

    Simrad ST90 Reference Manual Sensor read–outs These fields are separate read-outs. They present information related to the navigation of the vessel and operation of the ST90 system. Messages By flashing, shows you that the ST90 system has issued a message. The Messages colour of the triangle reflects the severity of the most serious message.

  • Page 313: Menu

    User interface Menu is located on the left side of the top bar. This is an "on/off" function. Menu Description Unless you need to make frequent changes to the operating parameters, you may want to hide the menu from the display presentation. This gives you more space for echo information. To hide the menu, select on the top bar.

  • Page 314: Screen Capture

    Simrad ST90 Reference Manual Note Video data files will normally become very large. If you wish to record large amounts of data, make sure that you have enough space on your hard disk. Unless your Processor Unit is equipped with a very large disk, we recommend that you save the data to an external storage device.

  • Page 315: Record

    User interface Record A useful function of the ST90 system is it ability to record echo data. Use the raw data recording functionality provided by the ST90 system to save echo data using the *.raw format. You can save the data to the hard disk, or onto an external storage device. The data files can be played back on the ST90 system.

  • Page 316: Hull Unit

    Simrad ST90 Reference Manual to save your recorded data on an external hard disk, make sure that it is connected to the Processor Unit. System Protection page protection stops the recording automatically when the transducer is Recording hoisted to its upper position. The...

  • Page 317: Information Panes Overview

    User interface Information panes overview The ST90 system offers several information panes to provide additional and detailed data from the presentations. The information panes are opened and closed from the top bar. The information panes are only available when an Inspection view is "active". Before you open an information pane, you must first click in an Inspection view to make it "active".
  • Page 318 Simrad ST90 Reference Manual Related topics User interface, page 305 Top bar, page 308 442704/A...

  • Page 319: Navigational Information

    User interface Navigational information The navigational information is located in the middle of the top bar. To choose which information to be displayed on the top bar, use the functions in the Top Bar Display Options dialog box. The dialog box is located on the menu.
  • Page 320 Simrad ST90 Reference Manual Prerequisites To see this information on the top bar, you must enable it by using the functions Top Bar in the dialog box. Select to open the page. The Display Options General Display Options dialog box is located on the menu.
  • Page 321 User interface Speed read-out When enabled, the vessel’s current speed is shown on the top bar. Prerequisites To see this information on the top bar, you must enable it by using the functions Top Bar in the dialog box. Select to open the page.
  • Page 322 Simrad ST90 Reference Manual Bottom Depth read-out If enabled, the current water depth under the vessel is shown on the top bar. Prerequisites To see this information on the top bar, you must enable it by using the functions Top Bar in the dialog box.

  • Page 323: Messages

    User interface Description If a suitable motion reference unit (MRU) sensor is connected to the ST90 system, the top bar can show you the vessel's current movements. The roll and pitch information is always shown in degrees. Related topics User interface, page 305 Top bar, page 308 Messages is located on the right side of the top bar.

  • Page 324: Operating System Functions

    Simrad ST90 Reference Manual Description Select this button to open the context sensitive on-line help. The help system opens on its start page. To navigate in the help file, use the menu system on the left side and the interactive links within the publication.
  • Page 325 User interface Power Off hoists the transducer, turns off the operating power to all units, closes Power Off the program, and then automatically turns off the Processor Unit. Exit to Operating System closes the ST90 program. Exit to Operation System Related topics User interface, page 305 Top bar, page 308...

  • Page 326: Replay Bar Description

    Simrad ST90 Reference Manual Replay bar description During replay, the dedicated replay bar is shown immediately under the top bar. The replay bar allows you to retrieve saved files, and to control the playback. How to open is set to Replay.
  • Page 327 User interface Record RAW function button allows you to start and stop recording, split the current Record RAW recording file (if it gets too large), and set up the file output parameters. Once all the recording parameters have been defined, you can start recording by clicking the red circle on the button, and stop it by clicking the left rectangle.

  • Page 328: Sonar Views

    Simrad ST90 Reference Manual Sonar views Topics Presentation modes, page 327 Horizontal view, page 328 Vertical view, page 336 Inspection view, page 340 Plane view, page 343 442704/A...

  • Page 329: Presentation Modes

    User interface Presentation modes All echoes offered by the ST90 system are shown in rectangular views. Combinations of these views are organized in presentation modes. Each presentation mode offered by the ST90 system provides a selection of views in a predefined pattern. You must first find the presentation mode that meets your operational requirements, then you can change the size of the individual views.

  • Page 330: Horizontal View

    Simrad ST90 Reference Manual Horizontal view The Horizontal view presents the 360 degrees area around your vessel from a bird’s eye view. The current bearing is shown with a solid line pointing out from the vessel position. How to open At the bottom of the display presentation, select a suitable presentation mode, and activate the Horizontal view.
  • Page 331 User interface Activate to place evenly spaced compass markers on the outer range Compass Cards ring in horizontal views. Range rings are a set of concentric circles labelled by distance from the vessel position. function adds markers to the history line. These markers indicate Minute Markers how far you have sailed in the last few minutes.
  • Page 332 Simrad ST90 Reference Manual function controls the horizontal direction of the Vertical view, the audio Bearing beam and the inspection beam. • If you use a presentation mode with two horizontal views you can set Bearing two different values. Both bearings are shown as continuous lines pointing out from the sonar position.
  • Page 333 User interface down. If you place the cursor over the tilt presentation in the upper left corner of the Horizontal view you can use the scroll wheel to change the tilt. Horizontal TX Sector Vertical TX Sector Horizontal swath: This is the horizontal TX sector in a horizontal swath.
  • Page 334 Simrad ST90 Reference Manual page. Click on the text to make it larger. Click one more time Operating Panel to restore the original font size. Markers The course and speed of the latest marker is found in the lower right corner of the view.
  • Page 335 User interface indicate the properties of the sea currents. The direction of the arrows indicate the direction of the water currents. The length of the arrows reflects their speeds. A numerical readout of the current vector data is provided in the top right corner of the Horizontal view.
  • Page 336 Simrad ST90 Reference Manual Plane view Certain presentation modes place the Plane and Horizontal views together. The Plane view presents the echo data in a horizontal sector ("fan"). The sector direction can be changed in both vertical and horizontal directions.
  • Page 337 User interface Related topics Sonar views, page 326 442704/A...

  • Page 338: Vertical View

    Simrad ST90 Reference Manual Vertical view The Vertical view is oriented perpendicularly to the horizontal plane. The view shows you a "vertical slice" of the echo data. The direction of the slice is the same as the current bearing. The area covered by the vertical beam is shown as a triangle in the Horizontal view. The upper horizontal line in the view represents the water surface.
  • Page 339 User interface Bearing The bearing for the Vertical view is controlled by the bearing in the Horizontal view. You can change the bearing on the menu. You can also select the bearing line in Main a Horizontal view and drag it sideways. function controls the horizontal direction of the Vertical view, the audio Bearing beam and the inspection beam.
  • Page 340 Simrad ST90 Reference Manual Horizontal TX Sector Vertical TX Sector This is the vertical TX sector in a vertical swath. This is the horizontal TX sector in a vertical swath. Horizontal Tx Sector function controls the "width" of the transmission.
  • Page 341 User interface To fully understand how the beams behave in this view, use the dialog box. Beam Visualization menu controls which "cosmetic" features that used. Cosmetics menu controls which graphical elements that are shown in the different Visual Objects views. Before you can change the settings related to a view, the view must be active.

  • Page 342: Inspection View

    Simrad ST90 Reference Manual Inspection view The ST90 system offers an inspection beam. The inspection beam is presented using an Inspection view. You can train and tilt the beam independent of the beams displayed in the other views. You can use the Inspection view to study single fish, schools and bottom conditions in detail.
  • Page 343 User interface Although the presentation of the echoes is most important in this view, it also contains a number of other objects. These provide you with additional functionality, as well as information that is useful or important while using the ST90 sonar system. Bearing The echo data is taken from the current bearing and tilt.
  • Page 344 Simrad ST90 Reference Manual to the exact position of the cursor. The information provided for noise shows you the noise reading for the latest ping independent of the cursor’s location. Each tooltip represents a specific piece of information, and they are listed separately.

  • Page 345: Plane View

    User interface Plane view The Plane view presents the echo data in a horizontal sector ("fan"). The sector direction can be changed in both vertical and horizontal directions. The current tilt is shown with dotted lines in the view. Two types of dotted lines are used to distinguish between port and starboard side of the sector.
  • Page 346 Simrad ST90 Reference Manual You can change the bearing on the menu. You can also click on the dedicated Main dotted bearing line in a Horizontal view and drag it. Tilt The current settings for range, gain and tilt are show in the lower left corner of the view.
  • Page 347 User interface To fully understand how the beams behave in this view, use the dialog box. Beam Visualization menu controls which "cosmetic" features that used. Cosmetics menu controls which graphical elements that are shown in the different Visual Objects views. Before you can change the settings related to a view, the view must be active.

  • Page 348: Using Markers In The St90 User Interface

    Simrad ST90 Reference Manual Using markers in the ST90 user interface Under normal use, the ST90 system presents several different echoes simultaneously. Some of these are clearly more interesting than others. It can be a challenging task to tell these echoes apart.

  • Page 349: Place Marker

    User interface Place Marker function allows you to create a marker at the current position of the cursor. Place Marker Each marker is shown as a small triangle with or without a short identifying label. You can also place a marker by pressing the button on the Operating Panel.
  • Page 350 Simrad ST90 Reference Manual Deleting a marker There are two ways to delete a marker. You can use the shortcut menu, or select Delete in the menu. Objects You can delete a single marker, or multiple markers simultaneously, by selecting Delete menu.
  • Page 351 User interface Priority status One marker can be given priority status to identify the object as the most important target or position. If another object has this priority, the status is transferred to the new object. The priority is identified with a "P". When a marker is given priority it can be regarded as a position track.

  • Page 352: Target Markers

    Simrad ST90 Reference Manual Note The priority is identified with a "P". Only one single object can be given priority status. If you create a new marker and give this priority, the position track is disabled. The same applies if you start a new target track.
  • Page 353 User interface To start target tracking: Place the cursor over the echo you wish to track. Press on the Operating Panel. Target Track Place the cursor over the echo you wish to track. Right-click to open the shortcut menu. Select Initiate Track The tracked target is regarded as an object, and it is identified with a circle and two lines.
  • Page 354 Simrad ST90 Reference Manual You can delete a single marker, or multiple markers simultaneously, by selecting Delete menu. If you use on the shortcut menu you can only remove Objects Delete Marker one marker at a time. Place the cursor on the marker you wish to delete.

  • Page 355: Circle Marker

    User interface Circle Marker A single circle marker can be placed in the display presentation. The circle is drawn with the same diameter as your purse. By means of the circle you can see the size of the school relative to your purse. You can only add one circle marker to the display presentation. To place the circle marker: Position the cursor where you wish to place the circle marker.
  • Page 356 Simrad ST90 Reference Manual • Right-click and select on the shortcut menu. Place Own Ship Marker The own ship marker is now regarded as an object. All information about the object is shown in the menu listed as "OSM". You can place as many own ship markers as you need.

  • Page 357: Gear Symbol

    User interface Visual Objects menu menu controls which graphical elements that are shown in the different Visual Objects views. These graphic elements include markers, vectors and targets that are tracked. The majority of the functions are "on/off" buttons to enable or disable these graphic elements in the various views.

  • Page 358: Rulers

    Simrad ST90 Reference Manual • Press on the Operating Panel. — Gear • Right-click and select on the shortcut menu to delete the Remove Gear Symbol markers from the view. Catch view Use the information in the Catch view to monitor the progress of the purse seine operation.

  • Page 359: About Target Tracking

    User interface The length and relative bearing of the ruler is displayed next to it. Once a ruler has been established you can not make changes to it. You can place as many rulers as you like in the view. Select on the shortcut menu to delete the one or several Delete Ruler...
  • Page 360 Simrad ST90 Reference Manual Place the cursor over the echo you wish to track. Right-click to open the shortcut menu. Select Initiate Track The tracked target is regarded as an object, and it is identified with a circle and two lines.

  • Page 361: About Position Tracking

    User interface Open the menu. Objects In the list of objects, check the box for the object you wish to delete. Check to select all the markers in the list. Select All Select Delete Objects menu menu provides a list of all current objects. This includes all types of objects Objects including those classified as targets.
  • Page 362 Simrad ST90 Reference Manual In this context, the phrase marker is used to identify a visual symbol placed in the display presentation. Placing a marker on an echo identifies the echo as "interesting". It is regarded as an object that you can act upon.
  • Page 363 User interface The marker is shown as a small triangle with or without a short identifying label. Once an echo has been provided with a marker in the display presentation it is regarded as an object. The position track locks on a position defined by its latitude, longitude and depth. The bearing and tilt settings are automatically adjusted to compensate for the movements of your vessel.
  • Page 364 Simrad ST90 Reference Manual menu provides additional functionality. Objects • Select the check box on the left side of the object to mark it for deletion, or to save it. • Select the object line to activate the control buttons, and to retrieve information about the object.

  • Page 365: Information Panes

    User interface Information panes Topics Biomass information pane description, page 364 Size Distribution information pane description, page 366 Fish Position information pane, page 369 Zoom information pane, page 371 442704/A...

  • Page 366: Biomass Information Pane Description

    Simrad ST90 Reference Manual Biomass information pane description The Biomass information pane displays an index of the biomass in the in the current Inspection view. The biomass index is the value, or Nautical area scattering coefficient (NASC), measured with unit m...
  • Page 367 User interface below the keel. The biomass value is relative, and after some use your experience will be a valuable factor when the decision is made. Note If you have other echo sounders or sonars running asynchronous with the ST90 system, these other systems may cause interference.

  • Page 368: Size Distribution Information Pane Description

    Simrad ST90 Reference Manual Size Distribution information pane description The Size Distribution information pane presents a histogram with the echoes from single fish. The calculations are based on the fact that different fish species have different echo strength. The histogram presents the actual size of the fish by weight, length or echo strength (shown in dB).
  • Page 369 User interface quantified as a number of decibels. It is defined as 10 times the logarithm of the reflected intensity (I ) at one metre from the fish, divided by the intensity which strikes the fish, i.e. the incident intensity (I ), i.e.
  • Page 370 Simrad ST90 Reference Manual Select this button to close the information pane. The pane closes immediately. If you wish to reopen it, simply click the button on the top bar one more time. Reset size You may have manually changed the physical size of the information pane. To reset the information pane to its default size, select the button in its top right corner.

  • Page 371: Fish Position Information Pane

    User interface Fish Position information pane The Fish Position information pane shows the position of the detected single fish echoes. The three circles in the information pane identify the operational frequencies. The echoes are seen from above. The colours indicate the echo strength. How to open Before you open an information pane, you must first click in an Inspection view to make it "active".
  • Page 372 Simrad ST90 Reference Manual The information pane provides information about its source, that is from which echogram the data comes from. You can easily change the physical size and shape of each information pane. Click in its lower right corner, and drag to a new size.

  • Page 373: Zoom Information Pane

    User interface Zoom information pane The Zoom information pane allows you to magnify a chosen area of the current Inspection view. How to open Before you open an information pane, you must first click in an Inspection view to make it "active".
  • Page 374 Simrad ST90 Reference Manual function allows you to adjust how much you are able to see "through" the Transparency information panes you have opened. You can adjust the setting from 0% (no transparency) to 90% (almost full transparency) in steps of 10%.

  • Page 375: Bottom Bar

    User interface Bottom bar The bottom bar is located at the bottom of the display presentation and stretches from the left side to the right side. The tabs on the bottom bar allow you to choose presentation mode. How to open The bottom bar is available all the time.
  • Page 376 Simrad ST90 Reference Manual Related functionality General page : Check the box to use Coordinated Universal Time (UTC). When disabled, UTC Time the ST90 system uses local time. Note To enable UTC time, your ST90 system must be set up to accept the NMEA ZDA datagram.

  • Page 377: Menu System

    Menu system Menu system Topics About the menus and menu buttons, page 376 Using the “smart” menu buttons, page 377 Main menu, page 379 Operation menu, page 381 Display menu, page 384 Setup menu, page 388 Active menu, page 395 Objects menu, page 400 Visual Objects menu, page 405 Cosmetics menu, page 409...

  • Page 378: About The Menus And Menu Buttons

    Simrad ST90 Reference Manual About the menus and menu buttons To select operating parameters on the ST90 system, use the menu system. The menus are organized in a tree structure with a main menu, a set of secondary menus, and several menu buttons.

  • Page 379: Using The "Smart" Menu Buttons

    Menu system Using the “smart” menu buttons Each menu provided by the ST90 system contains several menu buttons. Each button shows the purpose of the button. Some of them also display the current setting. Depending on the properties of each individual button, several methods can be used to change settings.
  • Page 380 Simrad ST90 Reference Manual Choosing a setting with the keyboard Place the cursor on the button. Select the button to open the text field. Type a numerical value. If the value exceeds the permitted range, the frame turns red. Type a new value within the accepted range.

  • Page 381: Main Menu

    Menu system Main menu menu is located at the top of the menu structure. It offers the most common Main functions for efficient use of the ST90 system. Unless you hide the entire menu system, the menu is visible at all times, even if you close the secondary menus. Main How to open By default, the...
  • Page 382 Simrad ST90 Reference Manual the views. Actual target detection will always depend on the operational environment, such as water temperature, salinity, interference and layers in the water column. Gain The purpose of the function is to adjust the echo level in the display presentations.

  • Page 383: Operation Menu

    Menu system Operation menu menu allows you to control the operating mode, the recording functionality, Operation and how the ST90 system transmits audio pulses ("ping") into the water. How to open Select the icon. Operation The icon is located under the menu.
  • Page 384 Simrad ST90 Reference Manual Functions and dialog boxes Operation function controls the operating mode of the ST90 system. You can set Operation it to Normal, Replay or Inactive. Transmission Mode allows you to control how often the ST90 system shall transmit Transmission Mode acoustic energy (ping) into the water.
  • Page 385 Menu system Processed Data to File The ST90 system can export several types of processed data file formats. Use to define which processed data formats to save, and where Processed Data to File to place the files. This page is located in the dialog box.

  • Page 386: Display Menu

    Simrad ST90 Reference Manual Display menu menu provides basic functions related to the screen behaviour and presentation Display of the echo data. Use the menu to control the visual aspects of the system, and to Display show or hide various elements in the presentation.
  • Page 387 Menu system Visual Objects menu, page 405 Cosmetics Use the functions on the menu to turn "cosmetic" elements in the sonar Cosmetics presentation on or off. The majority of the functions are on/off buttons to enable or disable "cosmetic" elements in the sonar views. This function is not available in all the views.
  • Page 388 Simrad ST90 Reference Manual elements to see on the top bar is selected in the dialog box. It controls Display Options the location of the menu. You can also select which tooltips to appear when you move the cursor over the echo information. The dialog box is organised in pages grouping parameters for different parts of the application.
  • Page 389 Menu system Current Flow A current sensor can be connected to the ST90 system. This can for example be an acoustic Doppler current profiler (ADCP). The information from this sensor is presented in the applicable views. Use the page to define key Current Flow settings for the presentation of the sensor data.

  • Page 390: Setup Menu

    Simrad ST90 Reference Manual Setup menu menu provides basic functions related to the installation parameters and the Setup communication with peripheral systems. How to open Select the icon. Setup The icon is located under the menu. Select the icon Main one more time to close the menu.
  • Page 391 Menu system Note Before you can change the settings related to a view, you must click inside the view to activate it. The changes you make are by default only valid for the active view. Several of the functions offer .
  • Page 392 Simrad ST90 Reference Manual Dead Reckoning function is used to improve the position of the track line relative Dead Reckoning to the actual position of the drifting fishing gear. For this function to operate, the ST90 system requires input from a speed log.
  • Page 393 Menu system finally converted into digital format. This transmission and reception sequence is commonly referred to as a ping. Transducer Use the page to do a reception test to check the individual transducer Transducer elements. Any errors are then easily detected. Noise The operational performance of the ST90 system depends on the noise conditions.
  • Page 394 Simrad ST90 Reference Manual page allow you to control the properties of each of the available I/O Setup communication ports. For each port, you can set up the communication parameters, and monitor the data flow. Motion Reference Unit The motion reference unit (MRU) measures the roll and pitch movements of the vessel.
  • Page 395 Menu system System Protection parameters allows you to define your own warning limits System Protection for the ST90 system. Fishing Gear By defining the type of fishing gear you are using, the ST90 system may provide more accurate visual presentations. Map Setup If you want to add a map to the display presentation you must first select a map provider.
  • Page 396 Simrad ST90 Reference Manual For detailed information about each function and dialog box, refer to the Reference Manual or the context sensitive on-line help. Related topics Menu system, page 375 Setup menu; Functions and dialog boxes, page 452 Pages in the Diagnostics dialog box, page 543...

  • Page 397: Active Menu

    Menu system Active menu menu offers parameters related to current views and data presentations provided Active by the ST90 system. How to open Select the icon. Active The icon is located under the menu. Select the icon Main one more time to close the menu. Description Only brief descriptions are provided.
  • Page 398 Simrad ST90 Reference Manual TVG (Time Variable Gain) When an acoustic pulse is sent through the water, it will gradually lose its energy. The greater the distance between the transducer and the target(s), the greater the loss of energy. (Time Variable Gain) compensates for the loss of acoustic energy due to geometric spread and absorption.
  • Page 399 Menu system RCG (Reverberation Controlled Gain) (Reverberation Controlled Gain) function removes unwanted reverberation from the bottom and or from the sea surface. This enhances the visibility of schools. It may however also remove scattered fish from the presentation. Bottom Filter Threshold The ST90 system provides a bottom filter to reduce the sometimes powerful echo from the seabed.
  • Page 400 Simrad ST90 Reference Manual settings. The TVG (Time Variable Gain) compensation is designed to counteract the natural phenomena of geometric spread and absorption loss. Horizontal Axis The echo presentations in the Inspection views resemble the echograms you see on an echo sounder. The echoes travels from right towards left across the echogram presentation.
  • Page 401 Menu system Related topics Menu system, page 375 Active menu; Functions and dialog boxes, page 466 Pages in the Echogram dialog box, page 609 Pages in the Information Pane Options dialog box, page 617 442704/A...

  • Page 402: Objects Menu

    Simrad ST90 Reference Manual Objects menu menu is - in spite of its name and location - not a menu at all. This "menu" Objects opens a small view to monitor and control the objects you have defined in the sonar views.
  • Page 403 Menu system If you do not need to use the menu system, you can hide it. This allows more space for the echo presentation. on the top bar to hide or show the menu. When the menu system is hidden, it Menu appears temporarily on the left or right hand side of the screen if you move the cursor to that position.
  • Page 404 Simrad ST90 Reference Manual Delete Select to delete all the markers you have selected in the objects list. Each Delete marker is removed both from the list and from the ST90 presentation. Select to add a new marker manually. The...
  • Page 405 Menu system Control buttons In the object list, select the object line to activate the control buttons for that particular object. Priority One marker can be given priority status to identify the object as the most important target or position. Select to give Priority the currently selected object a priority...
  • Page 406 Simrad ST90 Reference Manual Comment A text field at the bottom of the menu allows you to type comments. You can Objects only do this if you have computer keyboard connected to your Processor Unit. Insert Relative Position Select to insert object information into the comment field. The...

  • Page 407: Visual Objects Menu

    Menu system Visual Objects menu menu controls which graphical elements that are shown in the different Visual Objects views. These graphic elements include markers, vectors and targets that are tracked. The majority of the functions are "on/off" buttons to enable or disable these graphic elements in the various views.
  • Page 408 Simrad ST90 Reference Manual label. When you start target or position tracking, a marker is used to identify the object. With this function you can increase or decrease the size of the markers. Use this function to find the object sizes that fit your preferences. This may for example depend on your physical distance from the screen.
  • Page 409 Menu system Minute Markers Tracks This is an "on/off" switch. When you start a target track, a dedicated marker is used to identify the object you are tracking. When enabled, draws a position Track History history line after each tracked target. The line identifies the previous positions of the target.
  • Page 410 Simrad ST90 Reference Manual Current Vector This is an "on/off" switch. The function shows you the speed and Current Vector direction of the water current under your vessel. One or more arrow are drawn to or from the vessel symbol to indicate the properties of the sea currents. The direction of the arrows indicate the direction of the water currents.

  • Page 411: Cosmetics Menu

    Menu system Cosmetics menu Use the functions on the menu to turn "cosmetic" elements in the sonar Cosmetics presentation on or off. How to open Select to open the menu. Cosmetics is located on the menu. The function Cosmetics Display is not available for the Inspection views.
  • Page 412 Simrad ST90 Reference Manual Variable Range Ring An adjustable range ring can be added to the Horizontal and Vertical views. The ring is shown as a dotted circle with its centre on the vessel symbol. The current range is shown next to the circle. To change the range, left-click on the circle and drag to requested diameter.
  • Page 413 Menu system Related topics Menu system, page 375 Display menu, page 384 442704/A...

  • Page 414: Shortcut Menus

    Simrad ST90 Reference Manual Shortcut menus Shortcut menus provide additional functionality for operation. How to open Right-click in the view to open the shortcut menu. Description To make a choice, right-click in the view and select the relevant option on the shortcut menu.
  • Page 415 Menu system Place Marker function allows you to create a marker at the current position of the Place Marker cursor. Each marker is shown as a small triangle with or without a short identifying label. Delete Marker allows you to delete a marker from the current view. Select Delete Marker Delete Marker...
  • Page 416 Simrad ST90 Reference Manual Show Gear Symbol Place Gear Symbol Remove Gear Symbol The gear symbol is provided as a tool to help you plan and shoot the purse seine. For use with a purse seine, the intended process follows: To start the process: •...
  • Page 417 Menu system Select on the shortcut menu to delete the one or Delete Ruler Delete All Rulers several rulers from the view. Delete Ruler to remove one selected ruler from the view. Place the cursor on the Delete Ruler line, right-click when the cursor turns into a finger, then select from Delete Ruler the shortcut menu.

  • Page 418: Functions And Dialog Boxes

    Simrad ST90 Reference Manual Functions and dialog boxes Topics Main menu; Functions and dialog boxes, page 417 Operation menu; Functions and dialog boxes, page 430 Display menu; Functions and dialog boxes, page 440 Setup menu; Functions and dialog boxes, page 452 Active menu;...

  • Page 419: Main Menu; Functions And Dialog Boxes

    Functions and dialog boxes Main menu; Functions and dialog boxes menu is located at the top of the menu structure. It offers the most common Main functions for efficient use of the ST90 system. Unless you hide the entire menu system, the menu is visible at all times, even if you close the secondary menus.
  • Page 420 Simrad ST90 Reference Manual Description dialog box User Settings is used to store your favourite settings. These settings can be related to different operations, environmental conditions or basic personal preferences. You can use different settings to create as many user profiles as you like, and give them any name.
  • Page 421 Functions and dialog boxes Note Unless they are saved, all your current settings are lost when the factory settings are applied. Saved Settings "Saved settings" are those created and saved by you and other users. Each setting is identified by its name, as well as the time and date it was created. These settings may be deleted or renamed.

  • Page 422: Range Function

    Simrad ST90 Reference Manual Save Current Setting When you have spent some time working with the ST90 system, you are probably using specific settings that you know are efficient for your purpose. It is a good idea to save these settings.
  • Page 423 Functions and dialog boxes Description The range setting defines from how "far" you want to detect echoes. In other words, you specify the horizontal or vertical distance from the vessel to the outer edge of the search area. If you wish to apply the new range setting to all the views, select Apply to all The current range is shown with the range rings in the sonar views.

  • Page 424: Gain Function

    Simrad ST90 Reference Manual Related topics Controlling the gain and range settings, page 94 Defining the user-selected features on the Operating Panel, page 174 Functions and dialog boxes, page 416 Main menu; Functions and dialog boxes, page 417 Gain function The purpose of the function is to adjust the echo level in the display presentations.

  • Page 425: Tilt Function

    Functions and dialog boxes Apply to All The setting is by default only applied to the active view. It is identified with a thick border. You may wish to adjust the gain on all the views of the same type. To do this, click the middle of the button to open it, and select Gain...
  • Page 426 Simrad ST90 Reference Manual Description The transmitted sonar beams can be tilted electronically. The following methods can be used to adjust this setting: • Select either side of the button to choose a value. • Select the middle of the button and keep the mouse button pressed. Drag the cursor sideways to increase or decrease the value.
  • Page 427 Functions and dialog boxes • Select the middle of the button and keep the mouse button pressed. Drag the cursor sideways to increase or decrease the value. Release the mouse button when requested value is shown. • Select the middle of the button to open it. If you have a keyboard connected to the ST90 system, type the requested value.

  • Page 428: Bearing Function

    Simrad ST90 Reference Manual Related functionality Operating Panel The Mk1 Operating Panel offers separate buttons to control the vertical angle of Tilt the sonar beams.. (The Mk1 Operating Panel is no longer provided with new sonars. This information is provided for legacy reasons.) The Mk2 Operating Panel is fitted with three rotary switches.
  • Page 429 Functions and dialog boxes • If you use a presentation mode with two horizontal views you can set to two Bearing different values. Both bearing lines are shown in the Horizontal view. Both bearings are shown as continuous lines pointing out from the sonar position. The bearing in Horizontal 1 is shown with a solid line.
  • Page 430 Simrad ST90 Reference Manual Auto This is an "on/off" function. Set this function to On to start the automatic search function. In the Auto Bearing mode the ST90 system will automatically search within defined sector limits. The sector is identified in the view using two angular symbols.
  • Page 431 Functions and dialog boxes The Mk2 Operating Panel is fitted with three rotary switches. The Mk3 Operating Panel is fitted with two rotary switches. The switches are identified with numbers. Each switch can be assigned a function related to range, gain, bearing or tilt. The page is used to assign functionality to the programmable buttons.

  • Page 432: Operation Menu; Functions And Dialog Boxes

    Simrad ST90 Reference Manual Operation menu; Functions and dialog boxes menu allows you to control the operating mode, the recording functionality, Operation and how the ST90 system transmits audio pulses ("ping") into the water. How to open Select the icon.

  • Page 433: Operation Function

    Functions and dialog boxes Operation function function controls the operating mode of the ST90 system. You can set it to Operation Normal, Replay or Inactive. How to open This function is opened from the menu. Operation Description The ST90 system offers several operating modes. •...

  • Page 434: Transmission Mode Function

    Simrad ST90 Reference Manual Replay File dialog box allows you to choose the echo data file(s) you wish to Replay File play back. Related topics Choosing operating mode and key transmit parameters, page 84 Functions and dialog boxes, page 416 Operation menu;...

  • Page 435: Tx Power Function

    Functions and dialog boxes Maximum The ST90 system transmits (pings) as frequent as possible. The time between each ping (the ping rate) depends mainly on the current range. How fast your computer communicates with external peripherals may also have an effect on the ping rate. Ping Interval function permits you to choose the time (in milliseconds) between Ping Interval...

  • Page 436: Record Raw Function

    Simrad ST90 Reference Manual When the ST90 system is turned on, is by default set to Off. This is a safety Tx Power precautions to prevent inadvertent transmissions when the vessel is in dry dock. Most users operate the ST90 system with set to Maximum.
  • Page 437 Functions and dialog boxes Description Use the raw data recording functionality provided by the ST90 system to save echo data using the format. By means of the Replay function you can later play back the *.raw recorded file(s). This may prove useful if more a detailed study of the data is requested. You can also use the file(s) to experiment with the operational settings, as this will help you to gain more experience.

  • Page 438: Record Processed Function

    Simrad ST90 Reference Manual Related functionality Record indicator on the top bar shows you when recording has been Record activated. Recording dialog box When the recording is stopped, the dialog box opens automatically. Use the Recording dialog box to add metadata to your recording.
  • Page 439 Functions and dialog boxes How to open This function is opened from the menu. Operation Description You can set up the ST90 system to record the processed echo information on the internal hard disk, or to other recordable media. These files may be kept for future references. button allows you to start and stop recording.

  • Page 440: Output Dialog Box

    Simrad ST90 Reference Manual Output dialog box A key function of the ST90 system is its ability to export data. The purpose of the Output dialog box is to collect all functionality related to data output in one easily accessible location.
  • Page 441 Functions and dialog boxes information increases the efficiency. A trained ear easily detects echoes by the way they sound. To change the setting, move the cursor to either side of the button, and select Note If you need to adjust the volume use the controls on the audio equipment. To use audio, you must connect an amplifier with loudspeakers to the audio output on the Processor Unit.

  • Page 442: Display Menu; Functions And Dialog Boxes

    Simrad ST90 Reference Manual Display menu; Functions and dialog boxes menu provides basic functions related to the screen behaviour and presentation Display of the echo data. Use the menu to control the visual aspects of the system, and to Display show or hide various elements in the presentation.

  • Page 443: Visual Objects Function

    Functions and dialog boxes Screen Brightness function, page 447 Display Options dialog box, page 448 Colour Setup dialog box, page 449 Docking Views function, page 450 Visual Objects function is an "on/off" button used to open the menu. Visual Objects Visual Objects How to open is located on the...

  • Page 444: Motion Function

    Simrad ST90 Reference Manual Description Use the functions on the menu to turn "cosmetic" elements in the sonar Cosmetics presentation on or off. The majority of the functions are on/off buttons to enable or disable "cosmetic" elements in the sonar views. The function is not available for the Inspection views.

  • Page 445: Transparency Function

    Functions and dialog boxes The map is only shown in Horizontal views when is set to True. Range Projection Related topics Defining the visual information in the sonar views, page 149 Functions and dialog boxes, page 416 Display menu; Functions and dialog boxes, page 440 Transparency function When you open an information pane, you will see that it is transparent.

  • Page 446: View Range Function

    Simrad ST90 Reference Manual View Range function to expand the range shown in the relevant views to any percentage of View Range the original setting. The expansion is made without resizing the echoes using a Range "zoom" effect. How to open This function is opened from the menu.
  • Page 447 Functions and dialog boxes Description Use this setting together with to adjust the sensitivity of the ST90 system. Gain Display Gain controls the "amount" of echo that is displayed, in other words the "strength" or "intensity" of the echo presentation. The function thus increases or decreases the presentation of the echo colours.

  • Page 448: Panel Backlight Function

    Simrad ST90 Reference Manual Note that (Time Varied Gain) and are not filters, but included Gain Display Gain only to illustrate the complete "signal path". Related topics Controlling the gain and range settings, page 94 Improving the recognition of fish and schools using receiver filters, page 117 Functions and dialog boxes, page 416 Display menu;...

  • Page 449: Colour Threshold Function

    Functions and dialog boxes Colour Threshold function function allows you to reduce or increase the number of colours. This Colour Threshold will provide a filtering effect that removes the weakest echoes. How to open This function is opened from the menu.

  • Page 450: Display Options Dialog Box

    Simrad ST90 Reference Manual Description When the bridge is dark, the light emitted by the display presentation can affect your night vision. In order to compensate for this, you can reduce the intensity The Screen Brightness function allows you to reduce the brightness, and hence make the presentation darker. The intensity of light emitted by the display can be reduced from 100% to 0% in steps of 1.

  • Page 451: Colour Setup Dialog Box

    Functions and dialog boxes Related topics General page, page 530 Map Display page, page 533 Safety Depth page, page 535 Tooltip page, page 537 Own Ship page, page 538 Vertical View Orientation page, page 539 Off Centre page, page 539 Current Flow page, page 541 Colour Setup dialog box dialog box controls the presentation colours used by the ST90 system.

  • Page 452: Docking Views Function

    Simrad ST90 Reference Manual Details Palette Select a palette to suit the ambient light conditions and your personal preferences. The choice you make has no effect on the overall performance of the ST90 system. The following options are available: •...
  • Page 453 Functions and dialog boxes Description Once the function is activated, the various views are placed in named Docking Views windows, and docking positions for these windows are shown. The docking positions show you where to drag and drop the selected view. Any view can selected, and then repositioned as indicated by the docking positions.

  • Page 454: Setup Menu; Functions And Dialog Boxes

    Simrad ST90 Reference Manual Setup menu; Functions and dialog boxes menu provides basic functions related to the installation parameters and the Setup communication with peripheral systems. How to open Select the icon. Setup The icon is located under the menu. Select the icon Main one more time to close the menu.

  • Page 455: Tracking Area Function

    Functions and dialog boxes Tracking Area function Use the function to define the size of the area that you want to detect moving Tracking Area objects in. An invisible area - the tracking area - is created as an acquisition area. In order for the ST90 system to find and lock on the intended target, it needs to be kept within this tracking area.

  • Page 456: Fishing Gear Function

    Simrad ST90 Reference Manual Under certain circumstances the target tracking may not follow the intended echo. This may for example happen if the tracking area is too large. Related topics Using the markers and tracking features, page 104 Functions and dialog boxes, page 416 Setup menu;...

  • Page 457: Fish Select Dialog Box

    Functions and dialog boxes Fish Select dialog box The Size Distribution information pane presents a histogram with the echoes from single fish. The calculations are based on the fact that different fish species have different echo strength. The echo strength also depends on the operating frequency you use. For various reasons, the fish sizes presented in the Size Distribution information pane may be inaccurate.

  • Page 458: Language Function

    Simrad ST90 Reference Manual Description In order to obtain accurate position readings, it is very important that the sound speed through the water is set correctly. Several parameters are required to calculate the correct sound speed value. If these parameters are not known to you, use the default value 1494 m/s.

  • Page 459: Dead Reckoning Function

    Functions and dialog boxes Note The context sensitive online help may not be available for the language you choose. Related topics Defining settings related to user preferences and individual customizing, page 156 Functions and dialog boxes, page 416 Setup menu; Functions and dialog boxes, page 452 Dead Reckoning function function is used to improve the position of the track line relative to the Dead Reckoning...

  • Page 460: Stabilization Function

    Simrad ST90 Reference Manual To draw the track line use the settings on the page. The page is Track Line Track Line located in the dialog box. The dialog box is located on the Display Options Display Options menu. Display function adds markers to the track line.

  • Page 461: Screen Captures Dialog Box

    Functions and dialog boxes Details Roll Offset To compensate for any sensor misalignment, provide an offset value. Select [—] on the left side to decrease the value, or select [+] on the right side to increase. Pitch Offset To compensate for any sensor misalignment, provide an offset value. Select [—] on the left side to decrease the value, or select [+] on the right side to increase.
  • Page 462 Simrad ST90 Reference Manual Description Each screen capture you make is saved in format on .jpg the Processor Unit hard disk. The file name reflects the current date and time. The files are located in the following folder: C:\Users\Public\Documents\Simrad\ST90\ScreenDumps Observe on the top bar.

  • Page 463: Beam Visualization Dialog Box

    Functions and dialog boxes Beam Visualization dialog box With the various beams provided by the ST90 system, it may be difficult to understand the concepts. How do these beams "behave" in the water? By means of a graphic presentation, dialog box attempts to give you a better understanding of how the Beam Visualization acoustic beams are transmitted into the water.

  • Page 464: Diagnostics Dialog Box

    Simrad ST90 Reference Manual Diagnostics dialog box The ST90 system is a computerized sonar. There are hardly any analogue circuitry, and the possibility of traditional troubleshooting is limited. In order to rectify this, a built-in software application is available to offer test and maintenance functionality. The...

  • Page 465: Export Dialog Box

    Functions and dialog boxes Export dialog box dialog box allows you to export user settings, configuration files, message logs Export and information mainly related to hardware and software troubleshooting. How to open This dialog box is opened from the menu. Setup Description Exporting technical information from the...

  • Page 466: Installation Dialog Box

    Simrad ST90 Reference Manual Installation dialog box Before you use the ST90 system you must set it up to communicate with the relevant peripherals. Use the dialog box to set up all interfaces with external devices, and Installation to set up basic parameters related to installation and operation. In most cases, you only need to do this once.

  • Page 467: About Dialog Box

    This dialog box is opened from the menu. Setup Description If you wish to find the latest software version for the ST90 system, check our website. • www.kongsberg.com/simrad Related topics Functions and dialog boxes, page 416 Setup menu; Functions and dialog boxes, page 452 442704/A...

  • Page 468: Active Menu; Functions And Dialog Boxes

    Simrad ST90 Reference Manual Active menu; Functions and dialog boxes menu offers parameters related to current views and data presentations provided Active by the ST90 system. How to open Select the icon. Active The icon is located under the menu. Select the icon Main one more time to close the menu.

  • Page 469: Tvg Function

    Functions and dialog boxes RCG (Reverberation Controlled Gain) function, page 484 Bottom Filter Threshold function, page 487 Noise Filter function, page 488 Horizontal Scroll function, page 490 Vertical Reference function, page 491 Echogram dialog box, page 492 Information Pane Options dialog box, page 492 TVG function (Time Variable Gain) compensates for the loss of acoustic energy due to geometric spread and absorption.
  • Page 470 Simrad ST90 Reference Manual Both the geometric spread and the absorption will also have an effect on the returned echo signal. That is why we normally refer to these factors as the two-way transmission loss. TVG (Time Variable Gain) compensates for this loss of acoustic energy.

  • Page 471: Ping-Ping Filter Function

    Functions and dialog boxes User This setting allows you to define your own TVG curve. To choose your own TVG curve, use the dedicated function in the dialog box. Echogram Additional information for the technically minded When a sound pulse is travelling from the transducer through the water it will undergo geometrical spreading.
  • Page 472 Simrad ST90 Reference Manual Description presents the echoes based on the current information as well as the Ping-Ping Filter "history" of that specific target. The filter adds historical echo data for the target to the new information from the same target. This "mix" causes a more stable presentation, and some interference and noise are removed and/or reduced.
  • Page 473 Functions and dialog boxes The filters in the ST90 system are implemented in “series”. Bottom Filter Noise Filter (1) Gain & TVG (Time Variable Gain) Noise Filter (2) AGC (Automatic Gain Control) RCG (Reverberation Controlled Gain) Display Gain Ping-Ping Filter Note that (Time Varied Gain) and are not filters, but included...

  • Page 474: Pulse Type Function

    Simrad ST90 Reference Manual Pulse Type function function allows you to select the "shape" of the transmitted pulses ("pings"). Pulse Type Different shapes have different qualities. Which pulse type to use depends on the current environmental conditions, your range to the target(s) and the type and speed of the target(s) you are observing.
  • Page 475 Functions and dialog boxes • Frequency modulated transmissions may provide a more stable echo presentation. You may see an increase in target detection because noise and reverberation are reduced. • HFM (Hyperbolic Frequency Modulation) pulses are less sensitive to Doppler. These pulses may be a better choice for fast moving targets.
  • Page 476 Simrad ST90 Reference Manual LFM (Linear Frequency Modulation) In LFM transmissions the frequency changes during the duration of the pulse. The change is linear. Use the function to define the centre frequency used by the Frequency transmitted pulse. Use the...

  • Page 477: Bandwidth Function

    Functions and dialog boxes will reduce the voltage level on the output capacitors, and this reduces the source level on the following transmissions. Longer pulses will also increase the blind zone close to the transducer and increase the reverberation level. For these reasons, the use of long pulse durations may not be the best choice.

  • Page 478: Frequency Function

    Simrad ST90 Reference Manual Example If the chosen operating frequency is 17 kHz, and you set the bandwidth to 2 kHz, the frequency range in each transmission starts on 15 kHz and ends on 19 kHz. The bandwidth function does not apply to CW (Continuous Wave) transmissions.

  • Page 479: Horizontal Tx Sector Function

    Functions and dialog boxes Description The use of multiple operating frequencies is mainly intended for suppression of interference from other hydroacoustic equipment. If several sonars are used in the same geographical area they should therefore use different centre frequencies. Also, the sound absorption in salt water decreases with the frequency.
  • Page 480 Simrad ST90 Reference Manual How to open You open this function from the menu. Active Description function allows you to control whether the system shall transmit Horizontal Tx Sector acoustic energy into the water in omni (360°) or within a defined sector. Select the middle of the button to open it for access to the available options.

  • Page 481: Vertical Tx Sector Function

    Functions and dialog boxes The Mk2 Operating Panel is fitted with three rotary switches. The switches are identified with numbers. Each switch can be assigned a function related to range, gain, bearing or tilt. In some cases, you may want to use to control the direction of the Horizontal TX Sector acoustic transmissions.
  • Page 482 Simrad ST90 Reference Manual This is the horizontal TX sector in a horizontal swath. This is the vertical TX sector in a horizontal swath. This is the vertical TX sector in a vertical swath. This is the horizontal TX sector in a vertical swath.

  • Page 483: Range Projection Function

    Functions and dialog boxes Range Projection function The distance to a target located anywhere in the water column can be measured in two ways. This can either be the horizontal distance to the target (True), or along the tilt angle (Slant). function defines how this distance is measured.

  • Page 484: Agc (Automatic Gain Control) Function

    Simrad ST90 Reference Manual AGC (Automatic Gain Control) function (Automatic Gain Control) function runs an automatic analysis of the echo strength. Based on this analysis the ST90 system maintains a proper dynamic range based on all the current echo values. This is done by automatically reducing the gain if you have reverberation and noise, or increasing the gain if the acoustical conditions permit it.
  • Page 485 Functions and dialog boxes The most practical way to use the AGC (Automatic Gain Control) is to first switch it off. Adjust the echo presentation using the normal gain functionality until you have the best possible result, then activate the AGC. The AGC works best with even background (homogenous noise conditions) and pronounced targets.

  • Page 486: Rcg (Reverberation Controlled Gain) Function

    Simrad ST90 Reference Manual Note that (Time Varied Gain) and are not filters, but included Gain Display Gain only to illustrate the complete "signal path". Details The automatic gain control (AGC) is disabled. Weak A mean value for all the echoes is established. The value is used as a threshold.
  • Page 487 Functions and dialog boxes Surface reverberation The surface reverberation depends on the weather condition and the waves. Bottom reverberation The bottom reverberation depends on the roughness and physical properties of the sea bottom. (Reverberation Controlled Gain) controls the receiver processing. The algorithm handles each receiver beam individually.
  • Page 488 Simrad ST90 Reference Manual Bottom Filter Noise Filter (1) Gain & TVG (Time Variable Gain) Noise Filter (2) AGC (Automatic Gain Control) RCG (Reverberation Controlled Gain) Display Gain Ping-Ping Filter Note that (Time Varied Gain) and are not filters, but included...

  • Page 489: Bottom Filter Threshold Function

    Functions and dialog boxes Use for scattered fish located close to the bottom. This setting uses a slightly different algorithm than the other scattered fish settings. Scattered Use for scattered fish. This setting uses a slightly different algorithm than the other scattered fish settings.

  • Page 490: Noise Filter Function

    Simrad ST90 Reference Manual Related topics Improving the recognition of fish and schools using receiver filters, page 117 Functions and dialog boxes, page 416 Active menu; Functions and dialog boxes, page 466 Noise Filter function removes unwanted acoustic noise from the display presentation. It reduces...
  • Page 491 Functions and dialog boxes The filters in the ST90 system are implemented in “series”. The noise filtering is done early in the receiver process. Bottom Filter Noise Filter (1) Gain & TVG (Time Variable Gain) Noise Filter (2) AGC (Automatic Gain Control) RCG (Reverberation Controlled Gain) Display Gain Ping-Ping Filter...

  • Page 492: Horizontal Scroll Function

    Simrad ST90 Reference Manual Related topics Improving the recognition of fish and schools using receiver filters, page 117 Functions and dialog boxes, page 416 Active menu; Functions and dialog boxes, page 466 Horizontal Scroll function function controls how fast the echoes shall travel across the Inspection Horizontal Scroll view.

  • Page 493: Vertical Reference Function

    Functions and dialog boxes Related topics Functions and dialog boxes, page 416 Active menu; Functions and dialog boxes, page 466 Vertical Reference function During operations in a vertical view you may wish to focus on the echoes in the upper or lower part of the view.

  • Page 494: Echogram Dialog Box

    Simrad ST90 Reference Manual Echogram dialog box dialog box allows you to control the echogram presentation in the Inspection Echogram views. Two pages control the horizontal lines and the echogram type with applied TVG (time variable gain). One page controls how fast the echogram travels horizontally across the presentation.
  • Page 495 Functions and dialog boxes How to open This dialog box is opened from the menu. You can also open the Active Information Pane dialog box by selecting in selected information panes. Options Setup Description dialog box offers a menu on the left side, and several pages Information Pane Options for pane parameters on the right side.

  • Page 496: Secondary Functions And Dialog Boxes

    Simrad ST90 Reference Manual Secondary functions and dialog boxes Topics Replay File dialog box, page 494 Recording dialog box, page 497 LAN Port Setup dialog box, page 498 Serial Port Setup dialog box, page 501 Add Serial Port dialog box, page 503...
  • Page 497 Functions and dialog boxes Description A useful function of the ST90 system is it ability to record echo data. You can save the data to the hard disk, or onto an external storage device. The dialog box allows you to Replay File choose which file(s) to be used for playback.
  • Page 498 Simrad ST90 Reference Manual Remove Select a file in list, then select . The file is removed from the list, but not Files Remove from the hard disk. If you wish to delete a file from your hard disk, you need to use a file manager program.

  • Page 499: Recording Dialog Box

    Functions and dialog boxes Recording dialog box allows you to record the unprocessed echo data received by the transducer. You Record RAW can save the data to the hard disk, or onto an external storage device. When the recording is stopped, the dialog box opens automatically.

  • Page 500: Lan Port Setup Dialog Box

    Simrad ST90 Reference Manual Delete Select to cancel the recording and delete the raw data file. Delete Advanced Select to add information. You can insert information about catch and Advanced bycatch, and provide details about species, weight and size. Comment You can also add comments.
  • Page 501 Functions and dialog boxes page is located in the dialog boxes. The I/O Setup Installation Output Installation dialog box is located on the menu. The dialog box is located on the Setup Output Operation menu. Description Ethernet (Local Area Network (LAN)) communication is an efficient way to connect to external sensors, such as a global...
  • Page 502 Simrad ST90 Reference Manual Local Port is important if you want to receive information from a peripheral Local Port device to your the Processor Unit. The number you define here must match the port number on the peripheral device that is providing the information. This peripheral device is for example a sensor on the network, or another navigation or hydroacoustic system.

  • Page 503: Serial Port Setup Dialog Box

    Functions and dialog boxes Serial Port Setup dialog box Serial line communication with external devices is important for the ST90 system. The communication between the ST90 system and peripheral devices takes place using "datagrams". For most commercial devices, the formats of the datagrams are defined by NMEA (National Marine Electronics Association).
  • Page 504 Simrad ST90 Reference Manual Baud Rate Use this setting to specify the baud rate ("speed") for the serial communication. The standard baud rate defined for NMEA serial line communication is 4800 baud. In digital communications, symbol rate, also known as baud rate and modulation...

  • Page 505: Add Serial Port Dialog Box

    The first time the Processor Unit is turned on after a ST90 system software installation, it will automatically do a search to find available serial ports. Since the Processor Unit was provided by Kongsberg Maritime as a part of the delivery, you can only use the ports that were fitted by the manufacturer.

  • Page 506: Port Monitor Dialog Box

    Simrad ST90 Reference Manual Port Monitor dialog box Communication with external devices is important for the ST90 system. The communication between the ST90 system and peripheral devices takes place using "datagrams". These datagrams are self-contained and independent entities of data carrying information.

  • Page 507: Messages Dialog Box

    Functions and dialog boxes reference units, or other hydroacoustic systems. If you have enabled , the Auto Update text box is continuously updated with new information. Auto Update When this function is activated, the relevant text box is continuously updated with new information.
  • Page 508 Simrad ST90 Reference Manual Description Messages from the ST90 system can be related to any type of hardware or software errors. Messages also communicate events related to the operational performance and conditions. The messages are divided into different types related to their importance. Warnings are indicated with a yellow colour, while errors are indicated with a red colour.
  • Page 509 Functions and dialog boxes Information An information messages is simply a notification of a minor operational event. No corrective actions are required. Details Messages The messages are listed in a table. For each message, the date and time of issue is shown.

  • Page 510: Tracking Area Setup Dialog Box

    Simrad ST90 Reference Manual Related topics Messages, page 321 Functions and dialog boxes, page 416 Secondary functions and dialog boxes, page 494 Tracking Area Setup dialog box Use the function to define the size of the area that you want to detect moving Tracking Area objects in.

  • Page 511: Add Fishing Gear Dialog Box

    Functions and dialog boxes Note To track a target efficiently, the area should be as small as possible. For example, use a small area if you track single fish or small schools. However, if the target is large, or moves very fast, a larger area may be beneficial.

  • Page 512: Auto Configuration Dialog Box

    Simrad ST90 Reference Manual Auto Configuration dialog box function is used to change the vertical opening angle in horizontal Vertical Tx Sector and vertical swaths. If you select Auto, the sector is defined by the current range. Use the dialog box to define for which ranges the...

  • Page 513: New Marker Dialog Box

    Functions and dialog boxes Retracting the transducer to a middle position may be useful if you use the ST90 system simultaneously with other sonars. A higher position will permit you to increase the vessel speed. If you operate in very shallow waters, you may also reduce the risk of hitting bottom. However, placing the transducer immediately under the hull may increase the flow noise.

  • Page 514: Power Off Dialog Box

    Simrad ST90 Reference Manual When the new marker is created, it is automatically assigned a unique identifier (UID) by the ST90 system. Related topics Functions and dialog boxes, page 416 Secondary functions and dialog boxes, page 494 Power Off dialog box The operating system functions are located on the right side of the top bar.

  • Page 515: Pages In The Output Dialog Box

    Functions and dialog boxes Pages in the Output dialog box A key function of the ST90 system is its ability to export data. The purpose of the Output dialog box is to collect all functionality related to data output in one easily accessible location.
  • Page 516 Simrad ST90 Reference Manual How to open This page is located in the dialog box. This dialog box is opened from the Output Operation menu. Description settings control how and where the recorded files are saved on the hard disk, or File Setup on an external storage device.
  • Page 517 Functions and dialog boxes Max(imum) File Size Define the maximum amount of bytes to be contained in one data file. Select Maximum for 1 GB file size. The data files will normally become very large. If you wish to record large amounts of data, make sure that you have enough space on your hard disk.

  • Page 518: I/O Setup Page

    Simrad ST90 Reference Manual I/O Setup page To communicate with peripheral devices the Processor Unit offers several serial and/or Ethernet (LAN) ports. The number of communication ports depends on how your Processor Unit is set up and configured. For each port, you can set up the communication parameters, and monitor the data flow.
  • Page 519 Functions and dialog boxes page in the dialog box provides an overview of all the Sensors Diagnostics communication lines and sensors in use. All relevant status information is provided. Open dialog box from the menu. Diagnostics Setup When you work in the dialog box, you must always select to save the Installation...
  • Page 520 Simrad ST90 Reference Manual Input This column identifies the external sensor (any type of "measuring device") that is currently connected to the port. To choose what type of device to import data from, select under the table. Input LAN Ports This table shows the Ethernet (LAN) ports you have available.
  • Page 521 Functions and dialog boxes Select to add a new port. This is necessary if you have added new interface hardware, for example by installing an extra Ethernet or Serial adapter. If you have previously released an unused port, but want to bring it back into use, you must also select If no serial ports are available the button is disabled.

  • Page 522: Processed Data To File Page

    Simrad ST90 Reference Manual Related topics Setting up the interfaces to peripheral devices, page 195 Functions and dialog boxes, page 416 Operation menu; Functions and dialog boxes, page 430 Setup menu; Functions and dialog boxes, page 452 Output dialog box, page 438...
  • Page 523 Functions and dialog boxes Description Select the output type from the list, and then where to save the files. Select to save your choices. Note The data files will normally become very large. If you wish to record large amounts of data, make sure that you have enough space on your hard disk.
  • Page 524 Simrad ST90 Reference Manual text will be used as prefix on all the file names. Observe the file name limitations in the operating system. Maximum File Size Define the maximum amount of bytes to be contained in one data file.

  • Page 525: Marker Output Page

    Functions and dialog boxes Marker Output page Use the page to export target markers to a communication port. Each marker Output Marker is identified with its geographical location. This marker location can be very useful for other instruments For example, you can export this information to a chartplotter. Prerequisites dialog box is not available when your ST90 system is set to Inactive mode.
  • Page 526 Select which datagram format(s) to export. MDS (Measured Data Shoal) Simrad MDS is a proprietary datagram format created by Kongsberg Maritime. It contains the location, bearing and depth of a tracked target. All information is presented relative to your own vessel. All data are related to the tracked target.

  • Page 527: Relay Output Page

    Functions and dialog boxes TPP (Tracked Target Position) Simrad TPP is a proprietary datagram format created by Kongsberg Maritime. It exports the horizontal range, bearing and depth of a tracked target. All data are related to the tracked target. Select to allow export of the chosen data format.
  • Page 528 Simrad ST90 Reference Manual Description The information imported to the ST90 system from various sensors can also be useful for other systems on board your vessel. The ST90 system allows you to "re-export" this sensor information. When activated, the selected sensor information is sent out on the chosen communication port (serial or LAN).
  • Page 529 Functions and dialog boxes Port Select the Ethernet port or serial port you want to use for the communication. Inspect Port Select to check the communication parameters for the port. The relevant Inspect Port port setup dialog box opens. You are not permitted to make any changes. You can not define the communication port parameters here.

  • Page 530: Screen Recording Page

    Simrad ST90 Reference Manual Screen Recording page function allows you to record and save the echo presentation as a Screen Recording video file. Use the page to define where the video files are saved. Screen Recording Prerequisites dialog box is not available when your ST90 system is set to Inactive mode.
  • Page 531 Functions and dialog boxes Related functionality Screen Recording Select on the top bar to start and stop the recording. Screen Recording System Protection page protection stops the recording automatically when the transducer Screen Recording is hoisted to its upper position. The function stops the recording automatically Timer when the specified time has elapsed.

  • Page 532: Pages In The Display Options Dialog Box

    Simrad ST90 Reference Manual Pages in the Display Options dialog box dialog box is used to specify basic settings for the sonar presentation. Display Options How to open This dialog box is opened from the menu. Display Description This dialog box contains a number of pages selected from the menu on the left side.
  • Page 533 Functions and dialog boxes Description page offers a range General of "on/off switches". You use them to enable or disable the relevant functions. Note The information shown on the top bar must not be used for vessel navigation. Details Use icons on the main menu Select this function to use icons instead of text on the menu.
  • Page 534 Simrad ST90 Reference Manual Speed Select this check box to see the vessel's current speed on the top bar. The information must be provided by an external speed log or a navigation system connected to the ST90 system. Bottom Depth Select this check box to see the current water depth on the top bar.

  • Page 535: Map Display Page

    Functions and dialog boxes Related functionality Top bar The top bar is located at the top of the display presentation and stretches from the far left to the far right.The top bar gives you fast access to key functionality and navigational information.It provides buttons for hiding and showing the menu, making screen captures, opening the dialog box, and opening context-sensitive help.
  • Page 536 Description Select which map elements you want to include. These map settings are only valid for WMS (Web Map Service) maps from a KONGSBERG navigation system. A Web Map Service (WMS) is a standard protocol developed by the Open Geospatial Consortium in 1999 for serving georeferenced map images over the Internet.

  • Page 537: Safety Depth Page

    Functions and dialog boxes Range Projection function The distance to a target located anywhere in the water column can be measured in two ways. This can either be the horizontal distance to the target (True), or along the tilt angle (Slant). The function defines how this distance is measured.
  • Page 538 Map Display to include in the map presentation. These map settings are only valid for WMS (Web Map Service) maps from a KONGSBERG navigation system. Map function This is an "on/off" switch. Use to enable or disable the geographical map layer.

  • Page 539: Tooltip Page

    Functions and dialog boxes Range Projection function The distance to a target located anywhere in the water column can be measured in two ways. This can either be the horizontal distance to the target (True), or along the tilt angle (Slant). The function defines how this distance is measured.

  • Page 540: Own Ship Page

    Simrad ST90 Reference Manual Related topics Functions and dialog boxes, page 416 Display menu; Functions and dialog boxes, page 440 Display Options dialog box, page 448 Own Ship page In order to maintain a visual presentation of your vessel’s previous movements, you can draw these with a line.

  • Page 541: Vertical View Orientation Page

    Functions and dialog boxes Vertical View Orientation page page allows you to decide whether the vertical views should Vertical View Orientation be presented from right to left, or from left to right. How to open This page is located in the Display dialog box.
  • Page 542 Simrad ST90 Reference Manual Description function Set New Ship Centre on the shortcut menu moves the ship symbol away from the centre of the view. Place the cursor anywhere in the view, right-click and select . The function moves the vessel symbol to the selected Set New Ship Centre position.

  • Page 543: Current Flow Page

    Functions and dialog boxes Ship To Centre Select to move the own ship symbol back to the centre of the view. This Ship to Centre function is typically used when you have used the function to Set New Ship Centre move the ship symbol away from the centre of the view.
  • Page 544 Simrad ST90 Reference Manual : Use this setting to present the direction from which the ocean current is coming. From Observe the inverted arrows. function shows you the speed and direction of the water current under Current Vector your vessel. One or more arrow are drawn to or from the vessel symbol to indicate the properties of the sea currents.

  • Page 545: Pages In The Diagnostics Dialog Box

    Functions and dialog boxes Pages in the Diagnostics dialog box The ST90 system is a computerized sonar. There are hardly any analogue circuitry, and the possibility of traditional troubleshooting is limited. In order to rectify this, a built-in software application is available to offer test and maintenance functionality. The Diagnostics dialog box controls the test and diagnose application that checks the performance of the ST90 system.

  • Page 546: Processor Page

    Simrad ST90 Reference Manual Noise page, page 552 Element BITE dialog box, page 554 B-Scan page, page 555 Matrix page, page 560 Processor page page offers an overview of the parameters related to software version, Processor operation and network. How to open This page is located in the dialog box.
  • Page 547 Functions and dialog boxes Details Operation These boxes provide generic information related to the operating parameters. • : The value is simply a consecutive count of transmissions Ping Count Ping Count ("pings") since the ST90 system was turned on and activated. •...

  • Page 548: Sensors Page

    Simrad ST90 Reference Manual Sensors page page presents a table with all the sensors currently connected to the ST90 Sensors system. For each sensor, the status is provided. How to open This page is located in the dialog box. Open the...

  • Page 549: Transceiver Page

    Functions and dialog boxes Related topics Pages in the Diagnostics dialog box, page 543 Setup menu; Functions and dialog boxes, page 452 Testing the noise conditions and the sonar functionality, page 254 Functions and dialog boxes, page 416 Diagnostics dialog box, page 462 Transceiver page page offers key information about each transceiver board in the Transceiver Transceiver...
  • Page 550 Simrad ST90 Reference Manual Details Boards A graphic presentation of the transceiver boards is provided. The visual presentation reflects the physical location of the boards in the Transceiver Unit. To select a transceiver board, click the "button". Relevant information about the selected transceiver board...

  • Page 551: Transducer Page

    Functions and dialog boxes Power Status parameters present information about the common supply voltages Power Status to all the transceiver boards in the Transceiver Unit. It also shows you the current position of the service switch on the power supply module. Related topics Pages in the Diagnostics dialog box, page 543 Setup menu;...
  • Page 552 Simrad ST90 Reference Manual Details Boards A graphic presentation of the transceiver boards is provided. The visual presentation reflects the physical location of the boards in the Transceiver Unit. To select a transceiver board, click the "button". The corresponding transducer elements are identified.
  • Page 553 Functions and dialog boxes The reception test validates each single element in the transducer, and returns the status using a simple colour code. • : The transducer element is fully operational. Green • : The transducer element offers reduced performance. •...

  • Page 554: Noise Page

    Simrad ST90 Reference Manual Noise page The operational performance of the ST90 system depends on the noise conditions. It is essential that the noise signature is as low as possible. Use the page to test the Noise current noise conditions.
  • Page 555 Functions and dialog boxes Note With the vessel in port, the environmental conditions are not satisfactory. In the shallow waters of the port, noise from other vessels, dockyard workers or machinery will cause unreliable test results. If you do this tests in a busy harbour, or with noise sources present, the sensitive receivers will detect all the noise in the nearby waters.

  • Page 556: Element Bite Dialog Box

    Simrad ST90 Reference Manual The preamplifiers are very sensitive. They can easily pick up electrical noise from internal and external power supplies. The preamplifiers are also vulnerable to analogue noise created by their own electronic circuitry. Digital noise created by the converter and processing circuitry can also create noise problems.

  • Page 557: B-Scan Page

    Functions and dialog boxes Description dialog box offers these pages: Element BITE • B-Scan page allows you to monitor the data received from each of the elements in the B-Scan transducer. The start sample and the number of samples to be displayed are selectable. •...
  • Page 558 Simrad ST90 Reference Manual Description In the B-Scan presentation, each element in the transducer is shown as a long coloured vertical rectangle. If you place the cursor on top of one of these rectangles, a small yellow tool-tip will identify key information about the channel.
  • Page 559 Functions and dialog boxes This screen capture shows the B-Scan pattern while testing the receiver in the near range. This is a generic illustration. Any similarities with specific products are accidental. Details Mode Select the operating mode of the diagnostic system. •...
  • Page 560 Simrad ST90 Reference Manual Start Sample Start Sample select which sample to start the test with. Each vertical line shows the signal measured from a single transducer element. Sample 0 (zero) is measured when the ping starts, while (for example) sample 1000 is located several meters out.
  • Page 561 Functions and dialog boxes If you choose manual scale you must define the upper and lower limits. Set to the desired values. Minimum Maximum Logarithmic or linear scale can be chosen for the presentation. Logarithmic scale is normally used since this scale offers the best overview of the complete dynamic range. A linear scale will enhance the differences closer to the maximum value.

  • Page 562: Matrix Page

    Simrad ST90 Reference Manual Matrix page page allows you to monitor the average signal values or signal phases from each Matrix of the channels and transducer elements in the ST90 system. The presentation is provided on a matrix corresponding to the element locations in the transducer.
  • Page 563 Functions and dialog boxes A rectangle with 32 black elements in the matrix view indicates a failure with a single transceiver board. The tooltip will indicate which board that fails. Restarting the ST90 system will normally fix the problem. Failure of a number of consecutive transceiver boards indicates a problem with the power supply.
  • Page 564 Simrad ST90 Reference Manual Averaging Range to select the first sample to be part of the data collection. Use Start Averaging to select the number of samples to be included in the data collection. Averaging Range Scale Choose the scale of the presentation.
  • Page 565 Functions and dialog boxes • The value specifies the weakest echo received (in dB). Min(imum) non-zero • The value specifies the strongest echo received (in dB). Max(imum) If you have selected automatic colour scale, the values will be the same as those provided in the logarithmic scale in the upper text line.

  • Page 566: Pages In The Installation Dialog Box

    Simrad ST90 Reference Manual Pages in the Installation dialog box Before you use the ST90 system you must set it up to communicate with the relevant peripherals. Use the dialog box to set up all interfaces with external devices, Installation and to set up basic parameters related to installation and operation.

  • Page 567: Sensor Installation Page

    Functions and dialog boxes User Settings Setup page , page 605 Software License page, page 606 Transceiver Upgrade page, page 607 Simrad Connect page , page 608 Sensor Installation page For the ST90 system to use and offer correct navigational information, one or more external sensors must be connected.
  • Page 568 Simrad ST90 Reference Manual Datagram In the list of valid datagram formats, select the format(s) to be accepted by the ST90 system. If necessary, you can also specify a specific Talker ID Installation Most sensors are physically mounted somewhere on your vessel. For accurate measurements, the sensor locations - referenced to the vessel’s coordinate system -...
  • Page 569 Functions and dialog boxes Port To import the data from the chosen sensor you need to define an input port. This can be any available Local Area Network (LAN) or serial line on your Processor Unit. We recommend that you set up the relevant communication parameters before you use the port.
  • Page 570 Simrad ST90 Reference Manual • When you select sensor type ITI-FS, only one datagram can be selected; ITI-FS Datagrams. This is a group of datagrams that allows the ST90 system to import information from trawl systems. • When you select sensor type PI50, only one datagram can be selected; PI50 Datagrams.
  • Page 571 Functions and dialog boxes X Offset Select the offset value on the X axis (fore-and-aft direction) from the Ship Origin. Adjust with a positive value for X if the sensor is located ahead of the ship origin. Y Offset Select the offset value on the Y axis (athwartship) from the Ship Origin. Adjust with a positive value for Y if the sensor is located on the starboard side of the ship origin.

  • Page 572: Sensor Configuration Page

    Simrad ST90 Reference Manual Remove list contains all the sensors that are currently installed on the Installed Sensors ST90 system. If you want to delete a sensor, select it in the list, and then select Remove at the bottom of the page.
  • Page 573 The majority of the datagrams used by the ST90 system are defined by the National Marine Electronics Association (NMEA). Other proprietary datagrams are defined by third-party organizations or by Kongsberg Maritime. Any information in a datagram, for example the current depth, may be provided in different datagrams from several sensors.
  • Page 574 Simrad ST90 Reference Manual Note If you have two sensors providing the same information, but on different communication ports, certain limitations apply. During normal operation, you can easily decide which sensor you wish to use. During replay, you can only play back from one of these sensors.

  • Page 575: Motion Reference Unit Page

    Functions and dialog boxes Motion Reference Unit page The motion reference unit (MRU) measures the roll and pitch movements of the vessel. Some sensor models also measure heave. The information provided by the motion sensor is used by the ST90 system to stabilize the beams. Prerequisites dialog box is not available when your ST90 system is set to Replay mode.
  • Page 576 • Kongsberg EM Attitude 3000 The Kongsberg EM Attitude 3000 is a proprietary datagram format created by Kongsberg Maritime for use with digital motion sensors. It holds roll, pitch, heave and heading information. Baud Rate Use this setting to specify the baud rate ("speed") for the serial communication.
  • Page 577 Functions and dialog boxes Connected to 192.168.1.30 ST90 Beamformer Related functionality Stabilization function allows you to enable or disable the input from the motion Stabilization sensor. If you disable the input from the sensor, the beams will not be compensated for pitch and toll movements.

  • Page 578: Installation Parameters Page

    Simrad ST90 Reference Manual Installation Parameters page pages allow you to define the relationship between the physical Installation Parameters locations of the various sensors and the transducer. All relevant system units and sensors must be defined with their physical offset values in relation to the defined Ship Origin in the vessel’s coordinate system.
  • Page 579 Functions and dialog boxes Ship page On the page you define a specific reference point (Ship Origin or origo) for the various Ship sensor connected to the ST90 system. The origin is the common reference point where all three axis in the vessel coordinate system meet. All physical locations of the vessel’s sensors (radar and positioning system antennas, echo sounder and sonar transducers, motion reference units, etc.) are referenced to the origin.
  • Page 580 Simrad ST90 Reference Manual Y Offset Select the offset value on the Y axis (athwartship) from the default Ship Origin. This is the origin that was defined by the vessel designer and/or the shipyard when the vessel was built. Adjust with a positive value for Y if your new preferred origin is located on the starboard side of the default Ship Origin.
  • Page 581 Functions and dialog boxes Details X Offset Select the offset value on the X axis (fore-and-aft direction) from the Ship Origin. Adjust with a positive value for X if the transducer is located ahead of the ship origin. Y Offset Select the offset value on the Y axis (athwartship) from the Ship Origin.
  • Page 582 Simrad ST90 Reference Manual MRU (Motion Reference Unit) page Use the (Motion Reference Unit) page to insert the physical location of the motion reference sensor (MRU) with reference to the vessel coordinate system. Description The ST90 system is provided with a built-in motion sensor to provide electronic stabilization of the sonar beams.
  • Page 583 Functions and dialog boxes Note ® The Kongsberg Seapath - and other GPS systems - allow you to define the MRU location in the positioning system. If this is done, the MRU offset values in the ST90 system must be set to 0 (zero) to avoid "dual compensation".

  • Page 584: Synchronization Page

    Simrad ST90 Reference Manual Rotation Around Y Specify an angle (in degrees) to compensate for any deviation from the Y axis (athwartship direction) in the vessel coordinate system. Rotation Around Z Specify an angle (in degrees) to compensate for any deviation from the Z axis (vertical direction) in the vessel coordinate system.
  • Page 585 Functions and dialog boxes In physics, interference is the phenomenon in which two waves superpose each other to form a resultant wave of greater or lower amplitude. Interference usually refers to the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency.
  • Page 586 Simrad ST90 Reference Manual • Slave The Slave mode is used if the ST90 system shall transmit only when permitted by a peripheral system. When the Slave mode is selected, the ST90 system will not transmit ("ping") unless an external trigger appears on the chosen synchronization port.

  • Page 587: Units Page

    Functions and dialog boxes Related topics Setting up the interfaces to peripheral devices, page 195 Functions and dialog boxes, page 416 Setup menu; Functions and dialog boxes, page 452 Installation dialog box, page 464 Units page The user interface presents many measurements. These measurements are for example related to depth, range and distance.
  • Page 588 Simrad ST90 Reference Manual Details Length Choose the unit of measurement for all the readouts related to range and distances in the ST90 system user interface. This may for example be the cursor location. Depth Choose the unit of measurement for all the presentations of depth.

  • Page 589: Operating Panel Page

    Functions and dialog boxes Operating Panel page The Operating Panel offers all necessary control functions for normal operation. It further allows you to assign certain functions to dedicated buttons and switches. The Operating page is used to select which physical hardware panel you use, and to assign Panel functionality to the programmable buttons.
  • Page 590 Simrad ST90 Reference Manual Operating Panel Mk3, page 594 Operating Panel Mk1 The Mk1 Operating Panel is connected to the Processor Unit with three cables. The dual interface cable provides power and serial communication. The USB interface cable is used to read the trackball movements.
  • Page 591 Functions and dialog boxes Primary Port Choose which serial line communication port you wish to use to communicate with the Operating Panel. Secondary Port If you only use one Operating Panel, set this choice to None. Note It is very important that the chosen communication port is not put to other use in the page in the dialog box.
  • Page 592 Simrad ST90 Reference Manual Operating Panel Mk2 The Mk2 Operating Panel is connected to the Processor Unit using an Ethernet cable. The Operating Panel is provided with a built-in power supply. Details User Setting Buttons On the Mk2 Operating Panel, the four buttons dedicated for user settings or presentation modes are located the top of the panel.
  • Page 593 Functions and dialog boxes Before you can assign custom user settings to the operating panel, a selection of settings must be available from the dialog box. The dialog User Settings User Settings box is located on the menu. Main Any user setting selected on the Operating Panel is identified in the upper left corner of the Horizontal view.
  • Page 594 Simrad ST90 Reference Manual Active Ping Bearing This is the bearing setting in the currently active view. Active Ping Tilt This is the tilt setting in the currently active view Button Options The Mk2 Operating Panel is fitted with three function buttons.
  • Page 595 Functions and dialog boxes presentation. The own ship marker is now regarded as an object. All information about the object is shown in the menu listed as "OSM". Use Objects Delete Own on the shortcut menu to delete the marker from the current view. Ship Marker Auto Bearing This is an "on/off"...
  • Page 596 Simrad ST90 Reference Manual Operating Panel Mk3 The Mk3 Operating Panel is connected to the Processor Unit with a USB cable. A dedicated power supply unit is not required. Details User Settings Presentation modes On the Mk3 Operating Panel, the requested user setting or presentation mode is chosen with a single button.
  • Page 597 Functions and dialog boxes Before you can assign custom user settings to the operating panel, a selection of settings must be available from the dialog box. The dialog User Settings User Settings box is located on the menu. Main Any user setting selected on the Operating Panel is identified in the upper left corner of the Horizontal view.
  • Page 598 Simrad ST90 Reference Manual Active Ping Bearing This is the bearing setting in the currently active view. Active Ping Tilt This is the tilt setting in the currently active view For the Mk3 Operating Panel, assign one function to each rotary switch when you press it.

  • Page 599: Echogram Settings Page

    Functions and dialog boxes Related topics Defining the user-selected features on the Operating Panel, page 174 Echogram Settings page The ST90 system offers an inspection beam. The inspection beam is presented using an Inspection view. Use the page to set up basic functionality for the Echogram Settings Inspection view.

  • Page 600: Hull Unit Configuration Page

    Simrad ST90 Reference Manual Hull Unit Configuration page The hull unit is used to lower the transducer down below the ship’s hull when the ST90 system shall be used. When the ST90 system is turned off, the transducer is hoisted for protection.

  • Page 601: System Protection Page

    Functions and dialog boxes System Protection page Safe operation of the ST90 system is made possible using multiple sensors that monitor the operation and the performance. Whenever a suspicious event takes place, a relevant message, warning or alarm is provided. The parameters allows you to System Protection define your own warning limits for the ST90 system.
  • Page 602 Simrad ST90 Reference Manual Tx Inhibit Power The high voltage supplied to the transceiver boards is monitored. You are not permitted to change the alarm limits. If this voltage differs from the defined tolerances, alarm message AKH11 will be initiated: Transmission is inhibited due to a high voltage in the power supply.
  • Page 603 Functions and dialog boxes Processor Unit is equipped with a very large disk, we recommend that you save the data to an external storage device. protection stops the recording automatically when the transducer Screen Recording is hoisted to its upper position. The function stops the recording automatically Timer when the specified time has elapsed.

  • Page 604: Fishing Gear Setup Page

    Simrad ST90 Reference Manual • The settings control how and where the recorded files are saved on the File Setup hard disk, or on an external storage device. You can select the disk and folder for the files, the maximum file size, and a prefix for the file names. This page is located in the dialog box.

  • Page 605: Map Setup Page

    True. Details WMS (Web Map Service) Only WMS (World Map Service) maps from a KONGSBERG navigation system are supported. The Processor Unit must be connected to the ship network. Type the correct URL to make contact with the map server.
  • Page 606 Simrad ST90 Reference Manual provided by a GIS database. [] A WMS server usually serves the map in a bitmap format, e.g. PNG, GIF, JPEG, etc. In addition, vector graphics can be included, such as points, lines, curves and text, expressed in SVG or WebCGM format.

  • Page 607: User Settings Setup Page

    Functions and dialog boxes User Settings Setup page dialog box allows you to save the current user settings (your current User Settings selection of operational parameters), and to retrieve factory or previously saved user settings. These settings can be related to different operations, environmental conditions or basic personal preferences.

  • Page 608: Software License Page

    Simrad ST90 Reference Manual Software License page The ST90 system does not need any software licenses to operate. However, specific software license codes "unlocks" additional functionality. The settings allow you to Software License type a license code (text string) to unlock these optional functions.

  • Page 609: Transceiver Upgrade Page

    Functions and dialog boxes Extended range By adding a specific software license you can increase the maximum range to 000 metres. Details Hardware ID This unique identifier is generated using information from key components in the computer. Select to copy the identifier to the clipboard. Copy Software License This list shows you the software licenses that you have currently activated on your...

  • Page 610: Simrad Connect Page

    Simrad ST90 Reference Manual Description If a firmware upgrade is required, the necessary software will be included with the operational software. Once the new ST90 system software has been installed, the Upgrade button will be available. If the button is unavailable, a firmware upgrade is not required.

  • Page 611: Pages In The Echogram Dialog Box

    Functions and dialog boxes Pages in the Echogram dialog box dialog box allows you to control the echogram presentation in the Inspection Echogram views. Two pages control the horizontal lines and the echogram type with applied TVG (time variable gain). One page controls how fast the echogram travels horizontally across the presentation.
  • Page 612 Simrad ST90 Reference Manual Description The settings on the page are Lines all related to visual appearance. The changes you make are by default only valid for the active Inspection view. Click in the Inspection view to activate it. The active view is identified with a thicker border.
  • Page 613 Functions and dialog boxes Note This is an optional function. In order to use this functionality, a dedicated software license is required. Contact you local dealer for more information. Lines You can enable or disable one or more horizontal lines on the echogram. •...

  • Page 614: Echogram Page

    Simrad ST90 Reference Manual – : A short vertical line is drawn in the upper part of the echogram once Distance every specified number of nautical miles. • Annotations Select to allow annotation markers to be shown. If you select...
  • Page 615 Functions and dialog boxes Description Each Inspection view offered by the ST90 system can show you a different echogram type. Which type to see is chosen on this page. The page Echogram also allows you to select which TVG curve to use for the chosen echogram. The changes you make are by default only valid for the active Inspection view.
  • Page 616 Simrad ST90 Reference Manual means that fish in the outer region of the beam are adjusted to correct size even though their echoes are weaker. • : This setting uses the same TVG compensation as Fish Target mix (40 log R) (40 log R), but additional beam compensation is implemented.

  • Page 617: Horizontal Axis Page

    Functions and dialog boxes Bottom TVG Use this option to select up a specific Time Variable Gain (TVG) compensation for the bottom detection. The ST90 system allows you to use different TVG compensation for the echoes from the water column than from the bottom. By making the bottom echoes individually adjustable, you can fine tune the presentation from the bottom to investigate the bottom type and conditions.
  • Page 618 Simrad ST90 Reference Manual Description The horizontal scale controls how "fast" the echoes move from right towards left across the presentation. The changes you make are by default only valid for the active Inspection view. Click in the Inspection view to activate it. The active view is identified with a thicker border.

  • Page 619: Pages In The Information Pane Options Dialog Box

    Functions and dialog boxes Pages in the Information Pane Options dialog The ST90 system offers several information panes to provide additional and detailed data from the presentations. The information panes are opened and closed from the top bar. Several of the information panes are fitted with a button.
  • Page 620 Simrad ST90 Reference Manual You can also open the page by selecting in the information pane. Setup Description The settings provided by the Size page allow you to Distribution shape the vertical bars in the Size Distribution information pane to meet your own requirements.
  • Page 621 Functions and dialog boxes Manual Scale Choose the lower and upper limits (in dB) of the scale. • : This function specifies the lower limit of the target strengths shown in Lower Limit the histogram. The value reflects the current mode you have chosen. Example: If you have chosen the Length mode, and specifies 10 in this spin box, fish shorter than 10 cm will not be shown in the histogram.

  • Page 622: Fish Position Page

    Simrad ST90 Reference Manual Fish Position page The Fish Position information pane shows the position of the detected single fish echoes. The information pane is only available when an Inspection view is "active". Use the Fish page to set up the presentation parameters for the Fish Position information pane.
  • Page 623 Functions and dialog boxes Details Minimum Threshold Some echoes are stronger than others. If you have noise problems, or you are bothered with for example smaller fish (different species), jellyfish or plankton, you can use the function to adjust the sensitivity. The target strength (TS) for a Minimum Threshold single target must exceed this threshold (in dB) to be accepted.
  • Page 624 Simrad ST90 Reference Manual Maximum FM Phase Deviation This setting only applies to FM operation. Several single targets occurring at the same range will give you echoes in different parts of the beam’s cross section. To remove the bad targets, the angle (phase) between the samples in the echo are measured.

  • Page 625: Fish Size Adjustment Page

    Functions and dialog boxes They also define the range of target samples which are used for Fourier transformation to create the target strength frequency response (the curve in the TS(f) information pane) and the target position phase values. Increasing the distance values will require the targets to be further separated, but can increase the frequency resolution for the target strength frequency response (in the TS(f) information pane).

  • Page 626: School Mass Adjustment Page

    Simrad ST90 Reference Manual Description For each specie, adjust the average size of the fish. Note The measurement accuracy in the Size Distribution information pane depends on the vertical angle of the inspection beam. A beam that points nearly straight down corresponds to a traditional echo sounder.
  • Page 627 Functions and dialog boxes Description For the selected specie, adjust the density. Related topics Functions and dialog boxes, page 416 Active menu; Functions and dialog boxes, page 466 Information Pane Options dialog box, page 492 442704/A...

  • Page 628: Concept Descriptions

    Simrad ST90 Reference Manual Concept descriptions Topics Vessel coordinate system, page 627 Layers and deflections, page 630 What is sampling?, page 632 Acoustic noise, page 633 442704/A...

  • Page 629: Vessel Coordinate System

    Concept descriptions Vessel coordinate system The vessel coordinate system is established to define the relative physical locations of system units and sensors. When you have several different sensors and transducers on your vessel, and you wish each of them to provide accurate data, you need to know their relative physical positions. The antenna of a position sensor is typically mounted high above the superstructure, while a motion sensor is located close to the vessel’s centre of gravity.
  • Page 630 Simrad ST90 Reference Manual antennas, echo sounder and sonar transducers, motion reference units, etc.) are referenced to the origin. In most cases, the location of the vessel’s "official" origin has been defined by the designer or shipyard. This origin is normally identified with a physical marking, and also shown on the vessel drawings.
  • Page 631 Concept descriptions Related topics Concept descriptions, page 626 442704/A...

  • Page 632: Layers And Deflections

    Simrad ST90 Reference Manual Layers and deflections Daily operation of the ST90 system may be disturbed by environmental situations that you are unable to control. Typical conditions are temperature and salinity layers, as well as deflections caused by increasing or decreasing water temperature.

  • Page 633: Sonar Beam Deflections

    Concept descriptions Sonar beam deflections On warm days – especially during summer – the sea surface will be heated by the sun. The water temperature will gradually decrease with increasing depth. On cold days, you may experience the opposite. The cold water will be close to the surface, and the water temperature increases with increasing depth.

  • Page 634: What Is Sampling

    Simrad ST90 Reference Manual What is sampling? The information from the transducer on the ST90 system is a continuous flow of analogue data. In signal processing, sampling is the reduction of this continuous signal to a discrete signal. A common example is exactly what we do in the ST90 system. We convert a sound wave (which is an analogue continuous-time signal) to a sequence of samples (which is a discrete-time signal).

  • Page 635: Acoustic Noise

    Concept descriptions Acoustic noise Topics Introduction to the acoustic noise challenge, page 633 Contributing factors, page 633 Self noise, page 635 Ambient noise, page 638 Electrical self noise, page 638 Reverberation, page 639 Some means to reduce acoustic noise, page 640 Introduction to the acoustic noise challenge Even with the advanced noise filtering offered by the sonar system, we must address the noise challenge.
  • Page 636 Simrad ST90 Reference Manual • The properties of the target(s) • The signal-to-noise ratio The majority of these factors can neither be controlled nor improved by means of installation methods or transducer locations. The quality and properties of the transmitting and receiving systems are key factors during our product development, while our end user documentation aims to help you to make the right filter settings during operation.

  • Page 637: Self Noise

    Concept descriptions The transducer can pick up noise from: • Biological disturbances • Interference • Cavitation • Propeller noise • Flow noise • Acoustic noise from other hydroacoustic systems The transducer cable is long. Electric noise from generators, pumps, cooling systems and other electric or electromechanical devices is easily picked up.
  • Page 638 Simrad ST90 Reference Manual Electrical noise Modern vessels are normally equipped with a lot of electric instruments such as hydroacoustic systems, radars, navigation systems, and communication equipment. Any electric instruments may in some cases cause electrical interference and noise. International regulations and certifications are used to control and reduce this, but even these are limited if the electrical systems are poorly installed and/or maintained.
  • Page 639 Concept descriptions • The laminar flow is a nicely ordered, parallel movement of the water. • The turbulent flow is a disorderly flow pattern, full of eddies. Turbulent flow Laminar flow Air bubbles Air bubbles absorb and reflect the sound energy, and they may in worst cases block the sound transmission altogether.

  • Page 640: Ambient Noise

    Simrad ST90 Reference Manual https://en.wikipedia.org/wiki/Wave_interference — April 2016 Related topics Improving the recognition of fish and schools using receiver filters, page 117 Concept descriptions, page 626 Acoustic noise, page 633 Ambient noise Ambient noise is usually not a limiting factor to the performance of sonars and echo sounders.

  • Page 641: Reverberation

    Concept descriptions Related topics Improving the recognition of fish and schools using receiver filters, page 117 Concept descriptions, page 626 Acoustic noise, page 633 Reverberation When you transmit an acoustic pulse into the water to search for a target, echoes will also be returned from any other objects in the beam.

  • Page 642: Some Means To Reduce Acoustic Noise

    Simrad ST90 Reference Manual In this situation you will be able to identify the upper school of fish, but the lower school will be hidden in the shadow of the seabed rock formation. In this situation you will see several weak echoes from the waves and from the rock on the bottom, but you will still be able to identify the school of fish.
  • Page 643 Concept descriptions Reducing flow noise The shape of the hull plating around the installation trunk opening must be as streamlined as possible. It is particularly important that the hull plating in front of the installation trunk is as smooth as possible. Important Be especially aware of bilge keels and sacrificial anodes.
  • Page 644 Simrad ST90 Reference Manual Reducing electrical noise Make sure that all units are properly grounded. This is important to avoid electrical noise. Use shielded cables with correct grounding. Separate the cables used by the ST90 system from other cables with high voltages, large currents or transients.

  • Page 645: Technical Specifications

    Technical specifications Technical specifications Topics Introduction to technical specifications, page 644 Performance specifications, page 644 Power requirements, page 648 Weights and outline dimensions, page 651 Environmental requirements, page 655 Compass safe distance, page 659 Minimum display requirements, page 661 442704/A...

  • Page 646: Introduction To Technical Specifications

    ST90 Fish-finding sonar. They also provide information related to power requirements, physical properties and environmental conditions. Note At Kongsberg Maritime, we are continuously working to improve the quality and performance of our products. The technical specifications may be changed without prior notice.
  • Page 647 Technical specifications Transmission • : 000 Number of transmitter channels • Horizontal TX Sector – Maximum: 360 degrees (Omnidirectional) – Other options: 30, 60, 90, 120, 180, 360 degrees • Vertical TX Sector: – Horizontal swath ∗ Maximum: Wide ∗ Other options: Narrow, Normal, Wide, Auto –...
  • Page 648 Simrad ST90 Reference Manual Echo presentations • : 1280 x 1024 pixels (Minimum). The visual quality of the presentation Display resolution depends on the quality of your graphic adapter and display. We recommend that you use a large display with resolution 1920 x 1080.
  • Page 649 Technical specifications Hull Unit • : ST90 Hull Unit Make • : ST92 Model – : 1.2 m Lowering depth – : 21 knots Maximum speed • : ST93 Model – : 1.6 m Lowering depth – : 16 knots Maximum speed •...

  • Page 650: Power Requirements

    Hull Unit power requirements, page 650 Display power requirements Not applicable. The display is not a part of the ST90 scope of supply. It is not manufactured by Kongsberg Maritime. For more information, refer to the end-user documentation provided by the manufacturer. Related topics...

  • Page 651: Operating Panel Power Requirements (Mk2)

    Technical specifications • : 20% of nominal voltage, recovery time 3 s Maximum transient • : 10 VA (Approximately) Power consumption The power supply is connected to a dedicated socket on the rear side of the Processor Unit. Related topics Power requirements, page 648 Technical specifications, page 643 Operating Panel power requirements (Mk2)

  • Page 652: Hull Unit Power Requirements

    Simrad ST90 Reference Manual • : 20% of nominal voltage, recovery time 3 s Maximum transient • : 600 VA (Approximately) Power consumption Related topics Power requirements, page 648 Technical specifications, page 643 Hull Unit power requirements • : ST90 Hull Unit Make •...

  • Page 653: Weights And Outline Dimensions

    Display weight and outline dimensions Not applicable. The display is not a part of the ST90 scope of supply. It is not manufactured by Kongsberg Maritime. For more information, refer to the end-user documentation provided by the manufacturer. Related topics...

  • Page 654: Operating Panel Weight And Outline Dimensions (Mk1)

    Simrad ST90 Reference Manual The technical specifications are those valid for the computer that is provided by Kongsberg Maritime as a part of the ST90 system. Related topics Weights and outline dimensions, page 651 Technical specifications, page 643 Operating Panel weight and outline dimensions (Mk1) •...

  • Page 655: Transceiver Unit Weight And Outline Dimensions

    Technical specifications • Outline dimensions – : 57 mm Depth – : 225 mm Width – : 125 mm Height • : _____ kg Weight Related topics Weights and outline dimensions, page 651 Technical specifications, page 643 Transceiver Unit weight and outline dimensions •...
  • Page 656 Simrad ST90 Reference Manual – : 2518 mm Height above the installation trunk – : 1065 kg (Approximately) Weight • : ST94 Model – : 4268 mm Total height – : 3018 mm Height above the installation trunk – : 1115 kg (Approximately)

  • Page 657: Environmental Requirements

    Hull Unit environmental requirements, page 657 Display environmental requirements Not applicable. The display is not a part of the ST90 scope of supply. It is not manufactured by Kongsberg Maritime. For more information, refer to the end-user documentation provided by the manufacturer. Related topics...

  • Page 658: Operating Panel Environmental Requirements (Mk1)

    Simrad ST90 Reference Manual The technical specifications are those valid for the computer that is provided by Kongsberg Maritime as a part of the ST90 system. Related topics Environmental requirements, page 655 Technical specifications, page 643 Operating Panel environmental requirements (Mk1) Operating Panel •...

  • Page 659: Operating Panel Environmental Requirements (Mk3)

    Technical specifications Operating Panel environmental requirements (Mk3) • : ST90 Operating Panel Mk3 Make and model • : 0 to +50 °C Operating temperature • : -40 to 70 °C Storage temperature • : 5 to 95% relative, non-condensing Relative humidity •...
  • Page 660 Simrad ST90 Reference Manual Related topics Environmental requirements, page 655 Technical specifications, page 643 442704/A...

  • Page 661: Compass Safe Distance

    Hull Unit compass safe distance, page 661 Display compass safe distance Not applicable. The display is not a part of the ST90 scope of supply. It is not manufactured by Kongsberg Maritime. For more information, refer to the end-user documentation provided by the manufacturer. Related topics...

  • Page 662: Operating Panel Compass Safe Distance (Mk1)

    Simrad ST90 Reference Manual Operating Panel compass safe distance (Mk1) • : ST90 Operating Panel Mk1 Make and model • : 30 cm Standard compass • : 20 cm Other compass Related topics Compass safe distance, page 659 Technical specifications, page 643 Operating Panel compass safe distance (Mk2) •...

  • Page 663: Hull Unit Compass Safe Distance

    Technical specifications Hull Unit compass safe distance • : ST90 Hull Unit Make • : Not applicable. The unit is not located on the bridge. Compass safe distance Related topics Compass safe distance, page 659 Technical specifications, page 643 Minimum display requirements Unless specifically ordered, the ST90 system is not provided with a display.
  • Page 664 Simrad ST90 Reference Manual Index how to open........395, 466 ADCP about placing sensor data in the sonar views ....150 acoustic noise........... 633 ambient noise........... 638 Marker Output page ........525 bottom bar ..........373 Processed Data to File page ......522 cavitation..........
  • Page 665 Index Auto Configuration dialog box buttons description ..........510 menu ............. 377 Auto Search Operating Panel (Mk1)........41 Auto Update Port Monitor ..........505 cavitation Automatic Gain Control (AGC) acoustic noise........... 636 description ..........482 centre frequency .......... 476 auxiliary machinery characteristics acoustic noise...........
  • Page 666 Simrad ST90 Reference Manual outline dimensions........651 description ..........541 weight ........... 651 Current output folder concept Processed Data to File page ......521 sampling ..........632 Current Port configuration Port Monitor ..........505 Exporting technical information ..... 184 Current Vector Setting up the Operating Panel.......
  • Page 667 Index Depth Contour Help (top bar)........... 321 Safety Depth page ........536 Horizontal Axis page ........615 Depth Dividers Horizontal Scroll function ......490 Cosmetics menu........410 Horizontal TX Sector function....... 477 description Horizontal view ........328 Replay bar ..........324 Hull Unit (top bar) ........
  • Page 668 Simrad ST90 Reference Manual propellers..........636 New Marker dialog box....... 511 Pulse Type function........472 RCG (Reverberation Controlled Gain) Range function ......... 420 function ..........484 Range Projection function ......481 Record ........... 313 rattle noise ..........637 reverberation..........639 Record Processed function ......
  • Page 669 Index inspection ..........279 Sensor Installation page....... 570 minimum requirements ....... 661 electrical noise outline dimensions........651 acoustic noise........636, 638 power requirements........648 Element BITE reducing the light emitted by the display Processor ..........545 presentation ........... 161 Element Size in Pixels weight ...........
  • Page 670 Simrad ST90 Reference Manual Setting up input from buoys, fish aggregating function devices and other external objects ....212 AGC (Automatic Gain Control) ..... 482 false echoes ..........123 Audio ............ 438 reducing ..........123 Bearing ..........426 fast Colour Threshold ........447 ping rate ...........
  • Page 671 Index Shortcut menus......... 414 the transducer using Hoisting Contactor.... 192 GearSymbol transducer ..........82 description ..........355 Hoisting Contactor General page hoisting the transducer ........ 192 description ..........530 Horizontal Axis page general safety rules ......... 29 description ..........615 Generator Horizontal Scroll function Matrix ...........
  • Page 672 Simrad ST90 Reference Manual configure the sensor interface ......206 obtain a software license......236 define ship dimensions ........ 215 place a marker using operating panel ....107 define ship origin ........215 place data from a sea current sensor in the sonar define the Ethernet (LAN) port parameters ..
  • Page 673 Index Active menu ........395, 466 Operating Panel ........281 Main menu..........379 Processor Unit.......... 280 Operation menu ........381 sacrificial anodes........294 secondary menus........379 transceiver ..........281 Setup menu ..........388 Transceiver Unit ........281 hull unit inspection environmental requirements......
  • Page 674 Simrad ST90 Reference Manual top bar ........... 317 Loop K301 Replay File dialog box ........ 496 hoisting the transducer ........ 192 lowering K302 the transducer from the sonar room ..188, lowering the transducer ....... 192 190, 192 Keep Display Range the transducer using hand crank .....
  • Page 675 Index description ..........346 Messages Exporting target markers......181 description ..........321 placing a marker using operating panel..... 107 Messages dialog box priority ..........346 description ..........505 rulers description........356 Microsoft Xbox Controller Using markers in the ST90 user interface ..346 description ..........
  • Page 676 Simrad ST90 Reference Manual LAN Port Setup ........499 Off Centre navigation Operating Panel (Mk1)........40 selecting navigational information on the top Off Centre page bar ............158 description ..........539 navigation sensor offices installing navigation and other sensors support ............ 31 (summary) ..........
  • Page 677 Index description ..........322 General ..........530 operating voltage Horizontal Axis ........615 display ........... 648 Hull Unit Configuration....... 598 hull unit ..........650 I/O Setup ..........516 Operating Panel ........648–649 Installation Parameters page description ... 576 Operating Panel Power Supply ...... 648 Lines .............
  • Page 678 Simrad ST90 Reference Manual Ping Count Power Off Processor ..........545 Power Off dialog box ......323, 512 Ping Interval Top bar ..........322 Processor ..........545 Power Off dialog box ping rate description ..........512 transmitting with maximum ping rate....88 power requirements Ping—Ping Filter function...
  • Page 679 Index adjusting the radius of the search area ... 63, 97 increasing the visibility of the information adjusting the sonar range ......63, 97 panes ........... 162 Adjusting the stabilization offsets for the inserting the installation parameters for the external motion sensor....... 226 motion reference unit ........
  • Page 680 Simrad ST90 Reference Manual selecting menu language ......71, 156 purpose selecting navigational information on the top this manual..........15 bar ............158 Purse Depth selecting normal operating mode ....61, 84 Cosmetics menu........410 selecting replay file ........131 selecting replay operating mode ....
  • Page 681 Index deleting, copying and moving echo data Resource files ............. 128 I/O Setup page.......... 517 deleting, copying and moving processed data reverberation..........119 files ............. 136 description ..........639 processed echo data........134 reducing ..........119 Recording echo data ........127 Reducing bottom and surface reverberation Recording with the RCG (Reverberation Controlled...
  • Page 682 Simrad ST90 Reference Manual Processed Data to File page ......522 select Recording dialog box........497 which operating panel to use ......174 Relay Output page ........527 Select Save Current Setting Operating Panel (Mk1)........39 User Settings dialog box ......420...
  • Page 683 Index Shallow Contour adjusting horizontal direction of sonar Safety Depth page ........536 beam..........68, 102 Shallow Pattern Sonar beam deflections Safety Depth page ........536 description ..........631 ship dimensions sonar head defining..........215 anti-fouling paints ........276 Ship Dimensions sonar range Installation Parameters ........
  • Page 684 Simrad ST90 Reference Manual synchronization description ..........423 setting up..........209 time interval Synchronization page transmitting with fixed-time intervals....90 description ..........582 time variable gain system adjusting ..........96 description ..........20 Tooltip page diagram............ 22 description ..........537...
  • Page 685 Index outline dimensions........653 adjusting ..........96 power requirements........649 Time Variable Gain ........467 weight ........... 653 TVG function transceiver boards description ..........467 checking status ......... 254 Tx Data Transceiver page Port Monitor ..........504 description ..........547 Tx Power function Transceiver Unit description ..........
  • Page 686 Simrad ST90 Reference Manual description ..........491 changing environmental parameters....165 Vertical TX Sector function Weak description ..........479 AGC (Automatic Gain Control) ..... 484 Vertical view RCG (Reverberation Controlled Gain) description ..........336 function ..........486 Vertical View Orientation page Web Map Service (WMS) description ..........
  • Page 688 ©2021 Kongsberg Maritime ISBN 978-82-8066-211-8...

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