Advanced Radar Options - Lowrance HDS Live Operator's Manual

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.
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 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
(Broadband 4G and Halo Radar only)
Controls the target discrimination of the radar (separation between
objects is more prominent).
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