Furuno FSV-84, Руководство оператора

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2. HORIZONTAL MODE
2-50
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
S
or
T
of item desired and press the [MENU] key
to change the setting.
NEAR
100
Quit
QUIT
Cancel
CANCEL
MED
400
FAR
800
Select item with trackball
and press [MENU] key to
change setting.
Select to register
setting and finish.
Select to cancel
change.
TVG setting window
2ND AGC DISTANCE: Sets starting distance that 2
nd
AGC functions. The setting
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:
Adjusts horizontal beamwidth. For further details see “2.10
Adjusting Beamwidth”.