Garmin Volvo Penta Glass Cockpit B7 Owner's Manual page 62

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 a Radar screen or the Radar overlay, select
Menu > Gain.
2 Select Down to lower the gain until the semi-circular,
streaked pattern disappears from the Radar screen.
Reducing the gain to eliminate side-lobe interference
may cause smaller or distant targets to blink or
disappear from the Radar screen.
Radar Filter Settings
Adjusting Sea Clutter on the Radar Screen
You can adjust the appearance of clutter caused by
choppy sea conditions. The sea clutter setting affects the
appearance of nearby clutter and targets more than it
affects the appearance of distant clutter and targets. A
higher sea clutter setting reduces the appearance of
clutter caused by nearby waves, but it can also reduce or
eliminate the appearance of nearby targets.
NOTE: Depending upon the radar in use, the sea clutter
setting configured for use in one radar mode may or may
not be applied to other radar modes or to the radar
overlay.
NOTE: Not all options and settings are available on all
radar and chartplotter models.
1 From a radar screen or the radar overlay, select Menu
> Radar Filters > Sea Clutter.
2 Select an option:.
• Select an Auto option based on the sea conditions.
• Select Up or Down to adjust the appearance of sea
clutter until other targets are clearly visible on the
radar screen. Select a setting that reflects the
present sea conditions.
Clutter caused by sea conditions may still be visible.
When using a compatible radar model, the chartplotter
adjusts the sea clutter based on the sea conditions
automatically.
Adjusting Rain Clutter on the Radar Screen
You can adjust the appearance of clutter caused by rain.
Reducing the radar range also can minimize rain clutter
(Adjusting the Radar Range, page
The rain clutter setting affects the appearance of nearby
rain clutter and targets more than it affects the
appearance of distant rain clutter and targets. A higher
rain clutter setting reduces the appearance of clutter
caused by nearby rain, but it can also reduce or eliminate
the appearance of nearby targets.
NOTE: Depending upon the radar in use, the rain clutter
settings configured for use in one radar mode may or may
50
46).
not be applied to other radar modes or to the radar
overlay.
1 From a radar screen, select Menu > Radar Filters >
Rain Clutter.
2 Select Up or Down to decrease or increase the
appearance of nearby rain clutter until other targets
are clearly visible on the radar screen.
Clutter caused by rain may still be visible.
Averaging Multiple Scans on the Radar Screen
You can average the results of multiple scans on the
radar screen. This can be an effective method to filter out
noise and enhances the detection of consistent targets.
Averaging is most effective when using a longer range.
1 From a radar screen or the radar overlay, select Menu
> Radar Filters > Scan Average.
2 Select an option.
The High setting filters out the most noise.
Radar Options Menu
From a radar screen, select Menu > Radar Options.
MotionScope™: Uses the Doppler effect to detect and
highlight moving targets to help you avoid potential
collisions, find flocks of birds, and track weather
formations (MotionScope
page 47). This option is only available on Fantom
models.
Pulse Exp.: Increases the duration of the transmit pulse,
which helps maximize the energy directed toward
targets. This helps to enhance the detection and
identification of targets. This option is only available on
xHD radome and xHD2 open array models.
Target Size: Adjusts the size of targets, by adjusting the
pulse compression processing. Select smaller targets
for a sharp, high resolution radar image. Select larger
targets to display larger echos for point targets, like
boats and buoys. This option is only available on
Fantom models.
Echo Trails: Enables you to track the movement of
vessels on the radar screen. This option is not
available on xHD open array or HD/HD+ radome
models.
VRM/EBL: Shows the variable range marker (VRM) circle
and the electronic bearing line (EBL) to allow you to
measure the distance and bearing from your boat to a
target object (VRM and EBL, page
Guard Zone: Sets a safe zone around your boat and
sounds an alarm when anything enters the zone
(Enabling a Guard Zone, page
Timed Transmit: Helps conserve power by transmitting
radar signals at set intervals.
Radar Setup Menu
From a radar screen, select Menu > Radar Setup.
Source: Selects the radar source when more than one
radar is connected to the network.
™ Doppler Radar Technology,
48).
47).
Radar