3-20 hsb
2
PLUS Series LCD Display
Placing a Guard Zone
Placing a Guard Zone
Placing and positioningguard zones on the PathfinderPlus Radar displayis
quickand easy.
• If a guardzone is not already displayed, you can place one usingthe
ALARMS key.
• Ifyouhavealreadyplaceda guard zone,pressingtheALARMS keyallows
you to toggle eitherguard zone on or off.
Note: When you turn on a guard zone, it is normally displayed in its last-used
positionand shape.However,if thispositionis off-screenat the currentrange
setting,or withinone quarter of the current range from your vessel, the guard
zone is placed at its default position and shape instead. This is at one third
(Zone 1) or two thirds (Zone 2) of the current range, as a sector zone occupy-
ing 30° either side of the ship’s heading marker.
➤ To placea guard zone:
1. Press ALARMS. The soft keys are displayed.
The soft keys indicate the current statusof the two guard zones.
2. Ifnecessary,pressthe softkeyfortheguardzoneyourequire,totogglethe
settingbetweenOFF and ON. The soft keys are cleared. If you turned a
guardzoneon,itisdisplayedinitslast-usedpositionwithonecornerunder
cursorcontrol.
The radar picture shows the guardzone as a four-sided shape bounded by
a solidline (or a circleif previously set as one).
The cursor is positionedover an outer corner of the zone as shown in
Figure 3-14. The cursor hascontrol of this corner,as shown by the text
GRD in inverse video, the four-headedarrow, and the solid guard zone
boundary.
Figure 3-14: Placing a Guard Zone
ALARMS
D3791-2
GUARD 1
OFF ON
GUARD 2
OFF ON
GUARD 1
OFF ON
D3971-1
Ship's Heading Marker
Cursor symbol as
four-way arrow
Cursor text in
inverse video
Indicate cursor control
of guard zone
Zone as solid line
Move
cursor
Sector Zone Circular Zone
GRD GRD
81186_3.book Page 20 Thursday, August 22, 2002 8:23 AM
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