CA4
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Stretch – toggle between OFF, Auto, Pulse and Video.
Auto: the radar system will choose the optimum solution.
Pulse: will select the nearest longer pulse length on the screen, so the
weaker targets far away will be enlarged.
Video: all targets will be enlarged.
EBL (Electronic Bearing Line) mode: In this mode a dashed line can
be rotated counter-clockwise or clockwise by means of the zoom keys.
The bearing from the boat to the target can be displayed in True or
Relative degrees. Reset figures with
[CLR].
VRM (Variable Range Marker) mode: This is an option that allows
to increase or decrease a circular dashed line by means of the zoom
keys. The control panel at the side or below the radar display, will
indicate the distance in nautical miles that the dashed line is from the
boat. By placing the dashed line over a target or over an object, it will
indicate the distance to same. The readout automatically adjusts for the
range the radar is on. This dashed line can be placed over either a
moving target, such as another boat, or a fixed target, such as land.
The VRM feature should only be active when needed, and otherwise
turned off
[CLR] to eliminate extra clutter on the radar screen.
Trails after targets – toggle between OFF, 30sec, 1min, 2min, 5min,
10min, 15min, 30min, PERM (permanent). See also Glossary.
Clear trails will clear all trails, both from targets and own boat.
Own trail – toggle between OFF and ON.
GZ (Guard Zone alarm) –can be set
OFF / IN / OUT
–see also Glossary.
Define your “comfort” zone by means of the EBL and VRM markers.
Procedure: Use cursor to go to EBL1 and set the EBL line with +/-
keys – this is the first “wall” of the guard zone. Go to EBL2 and set the
second “wall”.ThengotoVRM1andsetthetop/bottom“wall” with
+/- keys. Go to VRM2 and set the second of the top/bottom “wall”.
Then go to GZ and choose:
IN = the alarm will be activated if any target enters the defined guard
zone.
OUT = the alarm will be activated if a target leaves the defined guard
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