Simrad SU90 Fish finding sonar

Audio output

The Simrad SU90 sonar can be connected to an external audio system to add sound to the user experience.

Many experienced sonar operators find this audio information very useful, and claim that an audio output increases the efficiency of the sonar. A trained ear will easily detect fish echoes by the sound of them.

The sonar provides an audio output from the Processor Unit. This is a line output, which means that you must provide a suitable amplifier and set of speakers. The audio system must include a volume control, as the audio output level from the sonar is fixed. The audio output can however easily be disabled by means of the Audio mute button on the Operating Panel. We recommend that one of the following audio systems is used:

Do not connect a loudspeaker directly to the audio output on the computer.

Powered speaker system

A commercial powered speaker system for PC use can be obtained from almost any kind of shop for electric appliances, home stereo or computers.

The number of speakers, size and power output can be selected to suit the crew preferences. There is no need to install a large bass speaker. The location of the speakers must be decided to allow for easy adjustment of the audio level.

  1. Processor Unit
  2. Operating Panel
  3. Colour display
  4. Ethernet cable to Transceiver Unit

Stereo system with amplifier and two or more loudspeakers

If a stereo system is already installed on the bridge, the audio output from the sonar can be connected to an auxiliary input.

The advantage of this setup is that most stereo systems are provided with a remote control, and this allows for easy adjustment of the audio level.

  1. Processor Unit
  2. Operating Panel
  3. Colour display
  4. Ethernet cable to Transceiver Unit

Connecting an audio system to an exisiting sonar installation

In order to use the audio output from the sonar, you must have software versions 1.6.5 and 1.3.6 (or later) installed. Contact your dealer, they can help you with both software updates and audio setup and installation.


Copyright Kongsberg Maritime AS 2007

Home