Simrad SX90 Fish finding sonar
OLD Processor Unit
Note that the computer described
on this page was made obsolete in August 2013.
Unit computer was put to use early 2009, and retired in 2013. The
computer is still supported, but will not be used on new systems.
The Processor Unit serves several functions. It performs
the advanced signal processing required to present the information
on the display, and it allows you to control the sonar. It provides
the graphic presentation of the sonar modes and the images created,
it holds the menu system, it communicates with the Transceiver Unit,
and reads information from the peripheral units.
Unit is a marine computer based on the Microsoft Windows XP® operating
system. It is designed for rugged use, and placed on shock absorbers.
The computer is based on a commercial design, but the software and
hardware has been specified and assembled by Simrad to suit the sonar
requirements. The computer holds a DVD player to be used for future
software upgrades. It also provides several USB interface connectors.