Furuno FSV-84 Operator's Manual page 107

TVG DISTANCE...: Sets the TVG effective distance for near, medium and far
ranges.
Setting range
NEAR: 50-150 m, 10 m increments
MED: 300-500 m, 20 m increments
FAR: 600-1000 m, 40 m increments
To adjust a TVG curve, select ▲or ▼of item desired and press the [MENU] key
to change the setting.
NEAR
100m 400m
Select item with trackball
and press [MENU] key to
change setting.
2ND AGC DISTANCE: Sets starting distance that 2
range is 0 to 2000 m, in increments of 20 m. Setting is invalid if display range is
lower than this setting.
NEAR AGC DISTANCE: Sets Near AGC effective distance. Set the range
between 20 m and 300 m in increments of 20 m.
SMOOTH ECHO RNG: Selects echo smoothing level in the range direction. The
setting range is 0-3. The higher the setting the greater the smoothing.
SMOOTH ECHO CIR: Selects echo smoothing level in circular direction. The
setting range is 0-3. The higher the setting the greater the smoothing.
GAIN CONTROL: If sensitivity is low even with maximum gain, change the
setting to WIDE. This doubles the control range.
BEAMWIDTH: See page 3-15.
DISPLAY POSITION: Selects where to display the vertical display, left side or
right side. Left side is the default setting.
Select to register
setting and finish.
QUIT
Quit
MED FAR
800m
CANCEL
Cancel
Setting window
3. VERTICAL MODE
Select to cancel
change.
nd
AGC functions. The setting
3-19