Installation manual

Simrad SH80
How to adjust the TVG
The TVG (Time Varied Gain) controls the gain in the signal
amplifier. The gain is weakest just after the ping, and increases
in accordance with time (and therefore range). A number of
standard gain curves are available, as well as Off.ByusingTVG,
the gain is adjusted in such way that a school of fish will be
presented with approximately the s ame strength on the screen in
any position inside the regulated TVG range of 1000 meters.
1 Click the Horizontal or Vertical tab to open the respective
menu.
2 Click
TVG to adjust the parameter.
Click the left or right side of the
TVG button to choose a
setting, or the m iddle of the button to open the parameter
dialogue.
For m ore information about this parameter, see What is TVG?
on page 171.
Mode procedures
This section explains how to choose operational modes, and how
to set up the
Mode buttons on the SH80 Operating Unit.
How to select operational mode
Your SH80 sonar is equipped with several operational modes.
Observe these procedures to choose the mode best fit for your
current operations.
Mode
1
1 Locate the Mode field on your Operating Panel
2 Press one of the four buttons to choose mode.
or:
1 Locate the
Mode buttononthetopofeachmenu.
2 Click the
Mode button to choose operational mode.
Click the left or right side of the
Mode button to choose
mode, or the middle of the button to open the parameter
dialogue.
How to define the function of the Mode
buttons
The Mode buttons on your SH80 Operating Panel can either
be used to select operational mode, or user settings. To switch
between these options, observe the procedure.
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