Furuno FSV-30, Руководство оператора

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2. HORIZONTAL MODE
2-45
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
NEAR AGC DISTANCE: Sets Near AGC effective distance. Set the range
between 20 m and 500 m in increments of 20 m. This is not available when
NEAR AGC in the H-SCAN SETTING menu is set to 0.
2ND AGC DISTANCE: Sets starting distance that 2
nd
AGC functions. The setting
range is 0 - 2000 m, in increments of 20 m. This is available more than the
setting value.
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.
BEAMWIDTH: Adjusts horizontal beamwidth. For further details see “2.10
Adjusting Beamwidth” on page 2-19.