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Setting up and running the sonar
Topics
Starting operation of the Sonar Head, page 44
Configuring your preferences, page 45
Customizing the sonar applications, page 46
Choosing the sonar range, page 48
Adjusting the sonar views, page 49
Adjusting the TVG (Time Variable Gain) setting, page 53
Starting operation of the Sonar Head
To start operation of the FM90 sonar, you may need to verify that the Sonar Head has
been discovered.
Context
Note
After powering up the FM90, there will be a brief delay before the Processor Unit discovers
the Sonar Head. The length of this delay depends on external factors, such as the length of
your third-wire trawl cable. Wait for the VDSL/STATUS light on the Power/VDSL Unit to
turn solid green before attempting to connect to the Sonar Head.
Procedure
1
Double-click the FM90 icon on the Processor Unit desktop to start the software.
2
Click the
Run
button to connect to the Sonar Head.
This button is located on the top bar.
Note
If the sonar is operating, clicking the Run button stops operation and disconnects the
Sonar Head.
3
Verify that the Sonar Head connects and the sonar views update.
Simrad FM90 Reference Manual
Summary of Contents for FM90
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