190-01499-00 Rev. A
Garmin GTX 335/345 Pilot’s Guide
5-1
Section 5
FIS-B Weather and Flight
5 – FIS-B WEATHER/FLIGHT INFO
5 FIS-B WEATHER AND FLIGHT INFORMATION
The GTX 345 Flight Information Services–Broadcast (FIS-B) function is capable of
receiving weather and flight information. FIS-B is a subscription-free service that is
broadcast over the UAT (978 MHz) data link. Reception of FIS-B data requires the
aircraft to be within range and line-of-sight of a ground station. Because terrain may
obstruct the signal, it may be necessary to gain altitude in order to receive the
broadcast. For information regarding the display of weather data and the associated
symbology, refer to the display operator’s guide. Table 5-1 lists FIS-B weather products
and the timing associated with each.
Transmission interval is how often the weather product is broadcast by the ground
stations. Update interval is how often the weather product is refreshed with new data
from on-ground sensors.
Table 5-1 FIS-B Weather Products
Weather Product
Expiration
Time
(Minutes)
Transmission
Interval
(Minutes)
Update Interval
(Minutes)
CONUS NEXRAD
60
15
1
Regional NEXRAD
30
2.5
5
AIRMETs
60
5
As available
SIGMETs
60
5
As available
typically 20 minutes,
then at 15 minute intervals
for 1 hour
METARS
90
5
As available, 1 minute
typically
≤
20 minutes
Winds and
Temperatures Aloft
90
or at the end of
the valid period
10
12 hours
Pilot Weather Report
(PIREP)
(Blue - Regular,
Yellow - Urgent)
90
10
As available
typically 20 minutes
TAFs
60
10
8
NOTAMs
60
10
As available
Содержание GTX 335
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