Garmin 4008 Manual Do Proprietário
2
GPSMAP 4000 Series Owner’s Manual
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Advanced Sonar Settings
To adjust advanced sonar settings, press
MENU
while viewing a sonar screen.
Range—the range of the depth scale on the right side of the screen (
Auto
or
Manual Range)
.
Gain—controls the sensitivity of the sonar receiver (
Auto
or
Manual Gain
). To see more detail,
increase the gain. If the screen is cluttered, decrease the gain.
Frequency—when using a dual frequency transducer, select how the frequencies appear on screen
Frequency—when using a dual frequency transducer, select how the frequencies appear on screen
(
200kHz
,
50kHz
,
Dual,
or
Auto
).
Zoom—zoom in to a section of the Full Screen. The zoom is off, or set to No Zoom,by default. Four
options are available:
2x Zoom—twice the magnification.
4x Zoom—four times the magnification.
bottom lock—locks the zoom window to the bottom.
Split Zoom—opens the Split Zoom screen.
4x Zoom—four times the magnification.
bottom lock—locks the zoom window to the bottom.
Split Zoom—opens the Split Zoom screen.
Depth line—quickly reference a specific depth (
On
or
Off
).
A-Scope (dual frequency only)—a vertical flasher along the right side of the screen (
On
or
Off
).
Sonar Setup—opens the Sonar Setup screen. See
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