CR40/42/50 MKII Glossary of terms
Appendix A
157
advanced to decrease excessive video clutter around own ship’s position in the
center of the display if necessary.
Guard zone
The use of the Guard zone feature built into the radar can detect
approaching vessels entering your “comfort” zone and you can use the guard
zone while you are moving or when anchored to protect you in a full 360
degrees. The audio alarm can be sounded from the unit or through an external
speaker/buzzer wired into the system – see section 9.7 Electrical connections.
)
Warning! When you have set up a guard zone, the system generates an alarm
tone when there is an echo greater than the preset level in this zone. However,
this does not mean that the alarm tone is always generated from ships or land
alone. You may need to adjust sensitivity and set rain and sea clutter properly
after considering the effects of sea surface conditions and meteorological
conditions (rain or snow). Note also that this function does not eliminate the need
for maintaining a watch in your ship.
HU – Head-Up
The heading line always appears on the display at 0 degrees as
the antenna passes the bow of the vessel. Targets appearing on the display are
relative to your own ship’s position and heading.
IR
– Interference Rejection.
Lock chart cursor to radar cursor
– will synchronize the two cursors in split
screen operation. The synchronization is controlled from the radar display.
Navigation points
- appro next navigation point can be shown on the
radar display when operating in navigation mode.
NU – North-Up
In this mode, targets are displayed at their measured distances
in true direction from your boat. North being at the top of the display. In the
North-Up mode, you must be interfaced with an electronic compass for proper
operation.
Off-Center mode
- lets you position the origin own ship to any point on the
screen within 66% of the radius of the display (the center 2/3 of the display).
The Off-Center mode permits the operator to obtain a greater view in the
direction of interest.
