Lowrance electronic LRA-2400 - Manual (Page 33)

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Section 4: Advanced Operation
Radar Only page display.
Reading the Display
The radar page displays digital information on the screen which covers,
Range Rings, Gain, Anti-Sea Clutter (STC), Anti-Rain Clutter (FTC)
and when active, Electronic Bearing Lines (EBL) and Variable Range
Markers (VRM).
Gain
The percentage listed next to Gain, displays the current Gain setting
for your radar display.
NOTE:
When adjusting Gain back to a useable level, increase the level un-
til you see a light peppering on the display. You will have to adjust
gain every time you change ranges.
Range Rings
The Range Ring display in the upper left-hand corner of the radar dis-
play shows the current range ring setting. In the example above, Range
is .5 nautical miles. The Range Ring setting (the distance between each
ring) is .125 nautical miles.