Simrad SH90 - REV A, Руководство оператора

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Menu descriptions
•
TX Power
: This button controls the transmission power.
•
TVG
: Time Varied Gain. This function will automatically
adjust the gain in the sonar to compensate for geometric
spread and absorption. Note that the TVG will only work
within the first 1000 meters.
•
AGC
: Automatic Gain Control. This function will
automatically reduce the gain if you experience reverberation
and noise, or increase it if the conditions permit it. Using the
AGC will ensure best possible signal processing.
•
RCG
: Reverberation Controlled Gain. This function will
automatically remove unwanted reverberation from the
bottom or from the sea surface. It may however also remove
scattered fish.
•
PP Filter
: The Ping-to-Ping filter will only show you the
echoes if they are still present after several consecutive pings
(2, 4 or 8). This function will provide you with a more stable
echo presentation, as spurious echoes will be suppressed.
Display menu
Menu description
The
Display
menu is shown in all display
modes, and provides access to parameters
controlling the visual presentation of the
sonar views. Some of the choices on the
menu are simple on/off buttons.
Menu buttons
•
Full screen
: Click this button to remove or retrieve the menu.
•
Palette
: Click this button to choose a presentation colour
palette to suit your personal preferences.
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