Garmin G1000H Marine Radio User Manual


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190-01255-00 Rev. B
Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
287
HAZARD AVOIDANCE
4) Press the MENU Key.
5) Turn the FMS Knob to highlight ‘Display XM Weather’ and press the ENT Key. Page title displays ‘MAP -
WEATHER DATA LINK (XM)’ to indicate XM WX is the selected weather datalink source.
Figure 6-2 Weather Data Link (XM) Page
NEXRAD
Weather Product
Selected for
Display
NEXRAD Weather
Product Icon
NEXRAD Weather
Product Ages (US
& Canada)
WhenanXMWXproductisactiveonamap,theageofthedataisdisplayedonthescreentotherightofthe
productsymbol(Figure6-2).Theageoftheproductisbasedonthetimedifferencebetweenwhenthedata
wasassembledonthegroundandthecurrentGPStime.Weatherproductsarerefreshedatspecicintervals
(denedintheRefresh RatecolumninTable6-1).
Ifforanyreason,aweatherproductisnotrefreshedwithintheExpiration Timeintervals(seeTable6-1),the
dataisconsideredexpiredandisremovedfromthedisplay.Thisensuresthatthedisplayeddataisconsistent
withwhatiscurrentlybeingbroadcastbyXMWXservices.Ifmorethanhalfoftheexpirationtimehaselapsed,
thecoloroftheproductagedisplayedchangestoyellow.Ifnodataforaweatherproductisavailable,the
systemdisplays‘N/A’insteadofaproductagewhenitisenabledfordisplay.
Table6-1showstheweatherproductsymbols,theexpirationtimeandtherefreshrate.Therefreshrate
representstheintervalatwhichXMWXservicestransmitsnewsignalsthatmayormaynotcontainnew
weatherdata.Itdoesnotrepresenttherateatwhichweatherdataisupdatedornewcontentisreceivedby
theDataLinkReceiver.WeatherdataisupdatedatintervalsthataredenedandcontrolledbyXMWXand
itsdatavendorsandaresubjecttochange.
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