System description
1
850--164186 A
1 SYSTEM DESCRIPTION
1.1 Introduction
The Simrad SP70 sonar is a long range omnidirectional sonar,
designed for medium and large sized fishing vessels, both purse
seiners and trawlers. The standard frequency is 26kHz (triple and
multiple frequency as option), and the beam can be electronically
tilted from +10° to –60° (or - 90° optional).
Great emphasis has been placed on giving the best possible
presentations on a high resolution colour display. The processor
unit is controlled by Microsoft’s Windows 2000 operating
system, which result in a flexible choice of display modes for a
large range of user applications.
The signal processing and beamforming is performed in a fast
digital signal processing system, using the full dynamic range of
the signals. In addition to the traditional single frequency
transceiver system, the SP70 sonar contains an advanced
frequency modulated filter system (FM).
The spherical multi- element transducer allows the sonar beam to
be trained and tilted electronically in any direction. This gives the
possibilities for automatic tracking a school of fish, and for
displaying the whole water volume around and below the vessel.
An optional stabilization system is available for electronically
pitch and roll compensation.
This chapter covers the following subjects:
• System overview
→ Refertopage2.
• Options
→ Refertopage4.
• Functional description
→ Refertopage5.
Important notice:
Windows, Windows NT and Windows 2000 are either registered
trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
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