Agc - Simrad SX90 - REFERENCE MANUAL REV D Reference Manual

Simrad SX90
112

AGC

The parameter dialog opens when you click the
AGC
in the ,
Horizontal Vertical
Dialog description
The
AGC (Automatic Gain Control)
in the sonar's preamplifier circuitry. This gain depends on the
strength of the incoming echo signal. The result is a filter effect,
reducing noise and reverberation. As show in the menu, the AGC
has four different settings. Note that the AGC circuitry senses
the echo strength in five directions, and use this information as a
basis for common adjustment for all the receiver beams.
Options
• : No gain adjustment
Off
• : Slow gain adjustment
Weak
• : Medium fast gain adjustment
Medium
• : Fast gain adjustment
Strong
• : Click to close the parameter dialog.
Close
• : Click to access the on-line help.
Help
Related topics
• Horizontal menu on page 83
• Vertical menu on page 85
• Vertical 180 menu on page 86
and menus.
Vertical 180
function adjusts the gain
button
AGC
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