Garmin GPSMAP 6008 Owner's Manual page 93

3. Complete an action:
Menu Gain
• Select >
• Configure the setting for the short-range screen in Dual Range mode. Select
the GPSMAP 6000 series. Select
• Configure the setting for the long-range screen in Dual Range mode. Select
the GPSMAP 6000 series. Select
4. Select Up to raise the gain, until light speckles appear across the Radar screen.
Data on the Radar screen is refreshed every few seconds. As a result, the effects of manually adjusting the
gain may not appear instantly. Adjust the gain slowly.
5. Select Down to lower the gain until the speckles disappear.
6. If boats, land, or other targets are within range, select
blink.
7. Select Up to raise the gain until the boats, land, or other targets appear steadily lit on the Radar screen.
8. Minimize the appearance of nearby large objects, if necessary
9. Minimize the appearance of side-lobe echoes, if necessary
Minimizing Nearby Large-object Interference
Nearby targets of significant size, such as jetty walls, can cause a very bright image of the target to appear on
the Radar screen. This image can obscure smaller targets located near it.
Note: Depending upon the radar in use, the gain setting configured for use in one radar mode may or may
not be applied to other radar modes or to the Radar Overlay
1. From the Home screen, select Radar.
2. Select Cruising, Harbor, offshore,
3. Complete an action:
Menu Gain
• Select >
• Configure the setting for the short-range screen in Dual Range mode. Select
the GPSMAP 6000 series. Select
• Configure the setting for the long-range screen in Dual Range mode. Select
the GPSMAP 6000 series. Select
4. Select Down to lower the gain until the smaller targets are clearly visible on the Radar screen.
Reducing the gain to eliminate nearby large-object interference may cause smaller or more-distant targets
to blink or disappear from the Radar screen.
Minimizing Side-lobe Interference on the Radar Screen
Side-lobe interference may appear to streak outward from a target in a semi-circular pattern. Side-lobe effects
can be avoided by reducing the gain or reducing the radar range.
Note: Depending upon the radar in use, the gain setting configured for use in one radar mode may or may
not be applied to other radar modes or to the Radar Overlay
1. From the Home screen, select Radar.
2. Select Cruising, Harbor, offshore,
GPSMAP 6000/7000 Series Owner's Manual
®
for Cruising, Harbor, Offshore, or Sentry mode.
Left > Gain
Right > Gain
Dual Range
for Cruising, Harbor, Offshore, or Sentry mode.
Left > Gain
Right > Gain
Dual Range
for the GPSMAP 7000 series.
for the GPSMAP 7000 series.
Down to lower the gain until the targets begin to
(page 87).
(page 87).
(page 85).
or Sentry mode.
for the GPSMAP 7000 series.
for the GPSMAP 7000 series.
(page 85).
or Sentry mode.
Radar
Menu Gain
> > for
> Menu > Gain for
Menu Gain
> > for
Menu Gain
> > for
87