Pilot's Guide

Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi
190-00663-02 Rev. B296
HAZARD AVOIDANCE
NEXRAD
Weather
Product
Symbol and
Age (U.S.
and Canada)
NEXRAD Weather
Product Selected
for Display
Figure 6-2 Weather Data Link (XM) Page
WARNING: Do not use the indicated data link weather product age to determine the age of the weather
information shown by the data link weather product. Due to time delays inherent in gathering and processing
weather data for data link transmission, the weather information shown by the data link weather product
may be significantly older than the indicated weather product age.
ForeachenabledSiriusXMWeatherproduct,thesystemdisplaysaweatherproducticonandproductage.
Theproductageistheelapsedtime(inminutes)sincetheweatherdataprovidercompiledtheweatherproduct.
Theproductagedisplaydoesnotindicatetheageoftheinformationcontainedwithintheweatherproduct,
which can be significantly older than the displayed weather product age.
TheSiriusXMWeatherservicebroadcastsweatherproductsatspecicintervals(denedintheBroadcast
RatecolumninTable6-1).Ifforanyreason,aproductisnotbroadcastwithintheExpiration Time intervals
(seeTable6-1),thesystemremovestheexpireddatafromthedisplay,andshowsdashesinsteadoftheproduct
age.  This ensures the displayed information is consistent with what is currently being transmitted by the
SiriusXMWeatherservice.Ifmorethanhalfoftheexpirationtimehaselapsed,thecoloroftheproductage
changestoyellow.Ifdataforaweatherproductisnotavailable,thesystemdisplays‘N/A’nexttotheweather
product symbol instead of the product age.
Table6-1showstheweatherproductsymbols,theexpirationtimesandthebroadcastrates.Thebroadcast
raterepresentstheintervalatwhichtheSiriusXMWeatherservicetransmitsnewsignalsthatmayormaynot
containupdatedweatherproducts.Itdoesnotrepresenttherateatwhichtheweatherinformationisupdated
orwhentheDataLinkReceiverreceivesnewdata.SiriusXManditsweatherdatasuppliersdeneandcontrol
the data update intervals, which are subject to change.