Installation manual

Introduction
Basic functionality
The basic principles of the Simrad SH80 Fish finding sonar are
unique because of the 240 transmitter and 480 receiver channels
with their transducer elements spread around on the cylindrical
transducer array.
The transmission, reception and data processing are under
computer control, and the powerful capabilities of the sonar are
the results of sophisticated digital signal processing software
and state of the art hardware.
Omni beam
When the Omni beam is tilted, the total beam picture can be
compared with folding an umbrella, which means that all beams
in 360 degrees around the vessel have the same tilt angle.
Figure 2 Omni beam principle
The beam can be tilted from +10 up to -60 degrees down.
In addition to seeing the target from above, it is also possible
to see the target from the side, by using the vertical slice
presentation. In this case the beam covers a continuous vertical
beam from 0 to -60 degrees in one transmission.
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