Simrad SN90
About this manual
Simrad SN90
Important
System description
System diagram
System units
Display description
Processor Unit description
Operating Panel description
Transceiver Unit description
Hull Unit description
Transducer description
Order information
General safety rules
Network security
Support information
Getting started
Operating panels
Operating Panel description (Mk1)
Operating Panel description (Mk2)
Operating Panel description (Mk3)
Microsoft Xbox Controller description
Starting normal operation
Turning on the SN90 system for normal use
Getting to know the user interface
Getting to know presentation modes and views
Selecting Normal mode to start pinging
Adjusting the radius of the search area
Adjusting the gain (echo sensitivity)
Changing the vertical angle of the sonar beams
Adjusting the horizontal direction of the sonar beam
Turning off the SN90 system
Basic operating procedures
Selecting the language displayed in the menus and dialog boxes
Selecting operating frequency for minimum noise
Hiding the menu system when you do not need it
Saving single or sequential screen captures
Saving the current user settings
Defining the ping (transmission) modes
Context-sensitive online help
Operating procedures
Getting started
Turning on the SN90 system
Lowering and hoisting the transducer from the user interface
Turning off the SN90 system
Choosing operating mode and key transmit parameters
Selecting Normal mode to start pinging
Selecting Replay mode
Selecting Inactive mode
Setting up the SN90 system for maximum echo refresh rate
Transmitting single pings
Transmitting with fixed-time intervals
Adjusting the output power to match varying conditions
Selecting the best operating frequency
Controlling the gain and range settings
Adjusting the gain (echo sensitivity)
Adjusting the TVG (Time Variable Gain) setting
Adjusting the sonar range
Adjusting the intensity of the echo presentations
Changing the tilt
Adjusting the bearing
Using the markers and tracking features
Starting a position track
Starting a target track
Placing a new marker
Deleting a marker
Measuring the size of a school relative to the purse seine
Using visual aids during the purse seine catch phase
Selecting a geographical area for accurate target tracking
Defining the physical size of the tracking area
Choosing the fishing gear in use
Changing the fishing gear properties to match your own equipment
Improving the recognition of fish and schools using receiver filters
About the receiver filter sequence in the SN90 system
Reducing noise and reverberation with the AGC (Automatic Gain Control) function
Reducing propeller noise and interference with the Noise Filter
Reducing bottom and surface reverberation with the RCG (Reverberation Controlled Gain) function
Reducing noise and false echoes with the Ping-Ping Filter
Reducing the strong bottom echo to see fish close to the seabed
Adjusting the intensity of the echo presentations
Recording and replaying echo data
Defining the file and folder settings for data recording
Recording echo data
Locating the echo data files to delete, move or copy them
Selecting Replay mode
Choosing which echo data file(s) to replay
Recording and exporting processed echo data
Defining the processed data recording parameters
Recording processed data
Locating the processed data files to delete, move or copy them
Setting up presentation modes and views
Selecting which presentation modes to choose from at the bottom of the display presentation
Selecting which cursor and marker information to be shown in a view
Moving a view to another display
Rearranging the layout of the echo presentations
Restoring the locations and sizes of the views
Defining the visual information in the sonar views
Placing data from a sea current sensor in the sonar view
Adding markers for external objects to the echo presentation
Creating a visual presentation of your vessel’s previous movements
Defining settings related to user preferences and individual customizing
Selecting menu language
Hiding the menu system
Placing the menu on the left side of the display presentation
Selecting the information to appear on the top bar
Enabling Coordinated Universal Time (UTC) on the bottom bar
Selecting which tooltips to appear in the user interface
Adjusting the backlight intensity on the Operating Panel
Reducing the light emitted from the display presentation
Increasing the visibility of the information panes
Changing the colour palette ("skin") used in the display presentations
Choosing the colours used to present the echoes
Selecting measurement units
Configuring the environmental parameters
Setting up the alarm limits for system protection
Defining the middle position of the transducer
Saving, retrieving and handling user settings
Saving the current user settings
Choosing previously saved user settings
Renaming existing user settings
Deleting user settings that are no longer used
Choosing factory default settings
Defining the user-selected features on the Operating Panel
Selecting which Operating Panel to use
Assigning user settings or presentation modes to the Operating Panel
Assigning functions to the rotary switches on the Operating Panel
Assigning functions to F1, F2 and F3 on the Operating Panel (Mk2)
Maintenance procedures
Lowering and hoisting the transducer from the sonar room
Lowering and hoisting the transducer using the Hoist/Lower Switch
Lowering and hoisting the transducer using the hand crank
Emergency lowering and hoisting using the two contactors
Setting up the interfaces to peripheral devices
Installing navigation sensors and other sensors
Setting up the serial and Ethernet (LAN) port parameters
Setting up the input from a navigation system (GPS)
Setting up the interface for speed log input
Setting up the interface for course gyro input
Configuring the sensor priority
Setting up the input from a motion reference unit (MRU)
Setting up the SN90 system for synchronized operation
Setting up input from buoys, fish aggregating devices and other external objects
Inserting the installation parameters
Correct installation parameters are crucial for sonar operation
Inserting the ship origin and dimensions
Inserting the installation parameters for the transducer
Inserting the installation parameters for the motion reference unit (MRU)
Adjusting the built-in motion sensor offset
Adjusting the stabilization offsets for the external motion sensor
Installing and maintaining software
Installing a new version of the operating software
Removing the operating software
Updating the online help system
Adding online help in a new language
Obtaining and installing a software license for additional functionality
Setting up the Operating Panel (Mk2)
Using more than one Operating Panel to control the sonar (Mk2)
Using a single Operating Panel to control more than one sonar (Mk2)
Updating the Operating Panel support applications (Mk2)
Updating the firmware on the Operating Panel (Mk2)
Testing the noise conditions and the sonar functionality
Checking the status of the transceiver boards
Checking the transducer by means of the Diagnostics functionality
Measuring the noise in passive mode
Making a noise/speed curve to determine vessel noise
Measuring flow noise
Preventive maintenance
Preventive maintenance schedule
Actions to be taken before each use
Actions to be taken every month
Actions to be taken during dry docking
Actions to be taken whenever required
Requirements for personnel and tools
Approved anti-fouling paints
Preventive maintenance procedures
Checking the environmental conditions in the sonar room
Inspecting and cleaning the display
Inspecting and cleaning the Processor Unit
Inspecting and cleaning the Operating Panel
Inspecting and cleaning the Transceiver Unit
Visual inspection of the hull unit
Visual inspection of the installation trunk
Inspecting and cleaning the transducer face
Painting the transducer face
Inspecting and replacing sacrificial anodes
Lubricating the hoisting spindle
Lubricating the transducer shaft sleeve
Accessing the inside of the installation trunk
Accessing the installation trunk by lowering the transducer
Accessing the installation trunk by lifting the hull unit
User interface
User interface familiarization
Top bar
Top bar overview
Logo and product name
Menu
Screen Recording
Screen Capture
Record
Hull Unit
Information panes overview
Navigational information
Geographical position read-out
Heading read-out
Speed read-out
Bottom Depth read-out
Motion read-outs (roll and pitch)
Messages
Help
Operating system functions
Replay bar description
Sonar views
Presentation modes
Horizontal TX Sector
Bearing
Bow marker
Compass cards
Course line
Coverage plot
Horizontal TX Sector
Gain
Inspection views
Markers
Minute markers / History line
Range / Range Rings / Variable Range Ring
Shortcut menu
Tilt
Horizontal TX Sector
User settings
Vertical view
Bearing
Tilt
Depth / Range / Range Rings / Variable Range Ring
Horizontal TX Sector / Vertical TX Sector
Coverage plot
Cursor
Markers
Purse depth
Vertical Reference
Inspection view
Bearing
Tilt
Range
Horizontal scroll
Tooltips
Plane view
Bearing
Cursor
Gain
Inspection views
Markers / Manual Track / Priority Marker
Range / Range Rings
Tilt
Vertical Reference
Using markers in the SN90 user interface
Place Marker
Target markers
Circle Marker
Own Ship Marker
Gear Symbol
Rulers
Using target and position tracking
About target tracking
About position tracking
Information panes
Biomass information pane description
Depth information pane description
Size Distribution information pane description
Fish Position information pane description
Zoom information pane
Bottom bar
Menu system
About the menus and menu buttons
Using the “smart” menu buttons
Main menu
Operation menu
Display menu
Setup menu
Active menu
Objects menu
Visual Objects menu
Cosmetics menu
Shortcut menus
Functions and dialog boxes
Main menu: functions and dialog boxes
User Settings dialog box
Range function
Gain function
Tilt function
Bearing function
Operation menu: functions and dialog boxes
Operation function
Transmission Mode function
Tx Power function
Record RAW function
Record Processed function
Output dialog box
Display menu: functions and dialog boxes
Visual Objects function
Cosmetics function
Transparency function
Display Gain function
Panel Backlight function
Colour Threshold function
Screen Brightness function
Display Options dialog box
Colour Setup dialog box
Docking Views function
Setup menu: functions and dialog boxes
Tracking Area function
Fishing Gear function
Fish Select dialog box
Environment dialog box
Language function
Dead Reckoning function
Stabilization function
Screen Captures dialog box
Beam Visualization dialog box
Diagnostics dialog box
Export dialog box
Installation dialog box
About dialog box
Active menu: functions and dialog boxes
TVG function
Ping-Ping Filter function
Pulse Type function
Bandwidth function
Frequency function
Horizontal TX Sector function
Vertical TX Sector function
Range Projection function
AGC (Automatic Gain Control) function
RCG (Reverberation Controlled Gain) function
Target Threshold function
Noise Filter function
Horizontal Scroll function
Vertical Reference function
Echogram dialog box
Information Pane Options dialog box
Secondary functions and dialog boxes
Replay File dialog box
Recording dialog box
LAN Port Setup dialog box
Serial Port Setup dialog box
Add Serial Port dialog box
Port Monitor dialog box
Messages dialog box
Tracking Area Setup dialog box
Hull Unit Control dialog box
New Marker dialog box
Power Off dialog box
Pages in the Output dialog box
File Setup page
I/O Setup page
Processed Data to File page
Marker Output page
Relay Output page
Screen Recording page
Screen Captures File Location page
Pages in the Display Options dialog box
General page
Map Display page
Safety Depth page
Tooltip page
Own Ship page
Vertical View Orientation page
Off Centre page
Current Flow page
Cursor Readout page
Presentation Modes page
Pages in the Environment dialog box
Water Column page
Pages in the Diagnostics dialog box
Processor page
Sensors page
Transceiver page
Transducer page
Noise page
Hull Unit page
Element BITE dialog box
B-Scan page
Matrix page
Pages in the Installation dialog box
Sensor Installation page
Sensor Configuration page
Motion Reference Unit page
Installation Parameters page
Ship page
Transducer page
MRU (Motion Reference Unit) page
Synchronization page
Units page
Operating Panel page
Operating Panel Mk1
Operating Panel Mk2
Operating Panel Mk3
Echogram Settings page
Hull Unit Configuration page
System Protection page
Map Setup page
User Settings Setup page
Software License page
Transceiver Upgrade page
Pages in the Echogram dialog box
Lines page
Echogram page
Horizontal Axis page
Pages in the Information Pane Options dialog box
Size Distribution page
Fish Position page
Bottom Detection page
Fish Size Adjustment page
School Mass Adjustment page
Concept descriptions
Important settings
AGC (Automatic Gain Control)
TVG (Time Variable Gain)
Basic sonar theory
Vessel coordinate system
Layers and deflections
Temperature and salinity layers
Sonar beam deflections
What is sampling?
Acoustic noise
Introduction to the acoustic noise challenge
Contributing factors
Self noise
Ambient noise
Electrical self noise
Reverberation
Some means to reduce acoustic noise
Technical specifications
Datagram formats