Lowrance HDS-7 LIVE HDS Live Operator Manual - Page 133

Sea clutter, Auto Sea Offset, Sea State, Rain clutter

Page 133 highlights

A higher gain makes the radar more sensitive to radar returns, allowing it to display weaker targets. If the gain is set too high, the image might be cluttered with background noise. Gain has a manual and an automatic mode. You toggle between automatic and manual mode in the slide bar. Sea clutter Filters the effect of random echo returns from waves or rough water near the vessel. When you increase the sea clutter setting, filtering the on-screen clutter caused by the echoes of waves is reduced. The system includes predefined Sea clutter settings for harbor and offshore conditions for all radar systems except Halo, in addition to the manual mode where you can adjust the settings. For all radar systems except Halo, Sea clutter modes can be selected from the menu. Auto Sea Offset (Halo Radar only) To allow fine tuning of the Sea control while in Auto mode (Auto uses directional adaptive clutter rejection), the Auto setting may be offset. Sea State Set the Sea State control according to current sea conditions for best sea clutter rejection. Rain clutter Rain clutter is used to reduce the effect of rain, snow or other weather conditions on the radar image. The value should not be increased too much as this may filter out real targets. Radar| HDS Live Operator Manual 133

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A higher gain makes the radar more sensitive to radar returns,
allowing it to display weaker targets. If the gain is set too high, the
image might be cluttered with background noise.
Gain has a manual and an automatic mode. You toggle between
automatic and manual mode in the slide bar.
Sea clutter
Filters the effect of random echo returns from waves or rough water
near the vessel.
When you increase the sea clutter setting, filtering the on-screen
clutter caused by the echoes of waves is reduced.
The system includes predefined Sea clutter settings for harbor and
offshore conditions for all radar systems except Halo, in addition to
the manual mode where you can adjust the settings.
For all radar systems except Halo, Sea clutter modes can be selected
from the menu.
Auto Sea Offset
(Halo Radar only)
To allow fine tuning of the Sea control while in Auto mode (Auto
uses directional adaptive clutter rejection), the Auto setting may be
offset.
Sea State
Set the Sea State control according to current sea conditions for
best sea clutter rejection.
Rain clutter
Rain clutter is used to reduce the effect of rain, snow or other
weather conditions on the radar image.
The value should not be increased too much as this may filter out
real targets.
Radar
| HDS Live Operator Manual
133