Kongsberg Simrad SN90, Руководство по установке

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ensure a clutter free picture with very high resolution in range. 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 SN90 contains an advanced frequency modulated filter system (FM). The
SN90 Processor Unit is controlled by the Microsoft
®
Windows
®
operating system.
This allows for a flexible choice of presentation modes, and for for a large range of
user applications.
Related topics
System diagram, page 18
Performance specifications, page 246
Key features
The Simrad SN90 is a unique and flexible sonar system. Due to the high resolution
and long range, the SN90 has proven to be a very efficient tool for both trawlers and
purse seiners.
For use on trawlers, the transducer is mounted on the vessel’s bow in a "forward looking"
position. It is well protected against acoustic noise from hull, machinery and propellers.
The high resolution and long range allows you to detect and investigate single fish and
schools - even those close to the bottom - from a distance of several hundred meters.
For use on purse seiners, the transducer is mounted on the side of the hull, and protected
from the purse wire. The SN90 allows you to run alongside a school of fish to observe it,
and you can analyze the school without passing over it.
• Up to 160° horizontal coverage
• Up to 90° vertical coverage
• Thee separate 5x5° inspection beams
• +10 to -90°tilt
• Operational frequency 70 to 120 kHz in steps of 1 kHz
• Narrow vertical beam
• Wide bandwidth
• Cost efficient solution
• Hyperbolic FM transmissions ("Chirp")
• Large dynamic range
• High definition
• Stabilized beams
• Easy operation
• Store and recall sonar data
Simrad SN90