Advanced radar options
Noise Rejection
(Broadband 4G and Halo radar only)
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.
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Note: 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 unit, 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
The Target separation control allows you to control the target discrimination of the radar
(separation between objects is more prominent).
Fast scan
(Broadband and Halo 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.
Target boost
(3G and 4G Broadband, and Pulse Radar only)
The target boost control increases pulse length or reduces radar bandwidth to make targets
appear larger in range and increase radar sensitivity.
Radar | NSO evo3S MPU Operator Manual
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