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.
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.
Advanced radar options
Noise Rejection
(Broadband 4G and Halo radar only)
The Noise Rejection control sets the amount of noise filtering applied by the radar. Target
sensitivity is increased at longer ranges when this control is set to Low or High, but does
cause some loss of target discrimination.
Tip: To get maximum range performance from Broadband 4G Radar, transmit on one range
only, set the Noise Reject control to High and the threshold as low as possible. The default is
30% for less clutter on the screen. If OFF is selected for the NSS evo2, the range performance
is about equal to 3G radar. In some areas where extreme high interference may exist, try OFF
for best radar image.
Radar threshold
The threshold sets required signal strength for the lowest radar signals. Radar returns below
this limit are filtered and are not displayed.
Default value: 30%.
Target expansion
Target expansion increases the length of targets in range, making them easier to see.
Rejecting radar interference
Interference could be caused by radar signals from other radar units operating in the same
frequency band.
A high setting reduces the interference from other radars.
In order not to miss weak targets, the interference rejection should be set to low when no
interference exists.
Target separation
(Broadband 4G and Halo Radar only)
The Target separation control allows you to control the target discrimination of the radar
(separation between objects is more prominent).
Fast scan
(Broadband Radar only).
Sets the speed of the radar antenna rotation. This option gives faster target updates.
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Note: Maximum speed may not be achieved depending on the radar Settings, Mode,
and Range selected. The radar will only rotate as fast as the current control settings allow.
Sea State
Set the Sea State control according to current sea conditions for best sea clutter rejection.
Radar | NSS evo2 Operator Manual
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