Koden ESR-S1BB, Operation Manual

Page: 35 / 73

2-15
SONAR OPERATION
OPERATION DIALS
GAIN DIAL
Adjusts the sensitivity of the received signal and turn this dial
Clockwise to increase the gain.

Gain controls can be adjusted by “GAIN UP” function in
FUNCTION SETTINGS.
CF
page 3-6
FAR GAIN DIAL
TVG CURVE in FUNCTION SETTINGS
10LOG ~ 40LOG
As the echoes returning from the bottom and from fish targets
get weaker as the depth increases, it is advantageous to have a
Time-varied-gain function that automatically compensates for
propagation loss of sound.
CF
page 3-7
STC function in TVG CURVE in FUNCTION SETTINGS
This STC function enables you to reduce noise interference
resulting from bubbles, dirt, etc. near the surface of the water.
As the dial is turned toward “0”, then the STC effect will
become progressively from the surface to the distance stronger.

Selecting STC function releases the gain adjustment
automatically so that the sensitivity of the receiver becomes
weaker in the distance.

Gain controls can be adjusted by the Gain Dials and “GAIN UP”
function in FUNCTION SETTINGS.
CF
page 3-6
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