Garmin G1000 Reference Manual page 56

Hazard Avoidance
If for any reason, a weather product is not refreshed within the defined Expiration
Time intervals, the data is considered expired and is removed from the display. The
age of the expired product is replaced by dashes. If more than half of the expiration
time has elapsed, the color of the product age readout changes to yellow.
The refresh rate represents the interval at which the GFDS servers make available
the most current known weather data. It does not necessarily represent the rate at
which new content is received from weather sources.
Weather Product
Radar Precipitation
(PRECIP)
Infrared Satellite
(IR SAT)
Datalink Lightning
(DL LTNG)
SIGMETs/AIRMETs
(SIG/AIR)
Meteorological Aerodrome Report
(METARs)
Winds Aloft
(WIND)
Pilot Weather Report
(PIREPs)
Temporary Flight Restrictions
(TFRs)
Terminal Aerodrome Reports
(TAFs)
* The composite precipitation image is updated every 3 minutes, but individual radar sites may take
between 3 and 10 minutes to provide new data.
40
Garmin G1000 Cockpit Reference Guide for the Beechcraft 300/B300 Series
Symbol
no product image
no product image
Expiration
Refresh Rate
Time
(Minutes)
(Minutes)
U.S./Canada: 3*
30
Europe: 15
60
30 Continuous
60 Continuous
90 Continuous
60 Continuous
90 Continuous
60 Continuous
60 Continuous
190-01344-00 Rev. B
30