Raymarine RL80C Plus Dokumentacja Pobierz pdf (Strona 87)

Chapter 3: Standard Radar Operations 3-19

Setting Guard Zones

and Alarms

3.5 Setting Guard Zones and Alarms

ThePathfinderPlusRadar displayallows you to set up one or two guard

zones,usingthe ALARMS key. You can set up sectorzonesor 360° (circular)

zonesasshowninFigure 3-13.

Note:You can only view and controlguardzonesif you are using theMaster

display(thatis, the displayto which the scanneris connected).

Figure 3-13: Guard Zone Display

Guardzones arefixedwithrespectto the ship’s headingmarker (SHM),

movingasthe SHM moves.They alsomoveifyou offsetthe center,orifyou

changethe rangescale,so thatthearea you have markedis maintained.

Theguardalarm soundswhenatarget enters a guardzone, exceedingthe

target densitythresholdwithinthe zone;the alarm alsosounds on a repeater

display.The alarm sensitivity controlallowsyou to set the thresholdabove

whicha newtargetwill triggeran alarm, and alsototurnthe alarmonoroff.

Note:A guardzone onlyoperateswhen the whole zone is displayedon the

screen,or couldbe displayedby offsettingthecenter.In addition,a guard

zoneis inactivefor 10 secondsafterit is placedor re-sized,to avoidinappro-

priatealarmsduringpositioning.

Thissectioncoversthe followingtopics:

• Placinga guardzone

• Moving,reshapingor deletinga guard zone

• Controlling guardzone alarms

AUTO

3nm

1/2

H-UP

126°T

GRD

CURSOR

BRG R

031°

RNG nm

2.24

D3975-1

Guard zone 1, sector zone

(short-dashed line)

Guard zone 2, circular zone

(long-dashed line)

1 2 ... 82 83 84 85 86 87 88 89 90 91 92 ... 249 250

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Raymarine RL80C Plus Dokumentacja Strona 87