Installation manual

Operation
9
850--160139 / A
4. GAIN CONTROLS
VOLUME
The two upper push buttons control the volume of the audio
channel in the loudspeaker. The audio channel is shown with a
continualwhite line, and can be trained by the train controls. Also
note that the size of the audio sector can be changed from 11° to
99° in the menu (chapter 5.10).
MAN/AUTO GAIN
These two push buttons are used to simplify the ON/OFF
selection of the AGC and the RCG.
The selection adjusts the AGC and the RCG to the following
menu settings:
AGC.........: OFF AGC.........: MEDIUM
RCG.........: OFF RCG.........: MEDIUM
Notethat the GAIN(see below)may bereadjusted whenselecting
MAN/AUTO GAIN.
GAIN
Thetwolowerpush buttons control the totalgainofthesonar.The
gain is displayed in the upper right-hand corner of the display.
The gain has 51 values, numbered from 0 to 50, and the receiver
gain is changed 1 dB per step.