950-7001001/Iss 1.2
EQ-55 Operators Manual
Page 2.38
Operation of the EQ-55
Kongsberg Simrad Mesotech Ltd.
Port Coquitlam, BC - Canada
2.7.11
Configuration - TVG (Time Varying Gain)
The Time Varying Gain (TVG) is a control that allows
the EQ 55 to make corrections for most of the losses
and absorption that occurs as sound energy passes
through sea water.
Each channel has its own TVG adjustment. Generally
speaking, if you are searching for small targets or are
looking for the best picture of the bottom at great
depths, use "FISH" (40logR).
If you are observing large schools of fish or have
excessive noise on the display screen, try the
"BOTTOM" (20logR) setting.
MAIN MENU
LF SETTING
HF SETTING
DISPLAY MODE
EXPANSION
SET MARKER
GAIN
TRANSMIT POWER
CONFIGURATION
↓↓↓↓
TVG
LF TVG
HF TVG
→
→
→
→
CONFIGURATION
UNITS
BACK COLOR
LANGUAGE
EXT I/F
TEST
OFF
TVG
COLOR THRESHOLD
SCROLL SPEED
ALARMS
WHITE LINE OFF
FILTER
OFF
STC
OFF
DEPTH ADJUSTMENT
SOUND VELOCITY
SAVE SETTINGS
LOAD SETTINGS
↓↓↓↓
LF TVG
BOTTOM
ON
FISH
Summary of Contents for EQ 55
Page 1: ...EQ 55 OPERATORS MANUAL 950 70017001 Issue 1 2 February 1998...
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