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5-6
GDL 88 ADS-B Transceiver Pilot’s Guide
190-01122-03 Rev. A
5.5 FIS-B Winds and Temperatures Aloft
Winds and Temperatures Aloft data shows the forecast wind speed, direction,
and Temperature at selected altitudes. Altitudes can be selected in increments
from the 1,000 feet up to 53,000 feet. The update rate is every 12 hours.
5.6 SIGMETs and AIRMETs
SIGMETs (SIGnicant METerological Information) and AIRMETs (AIRmen’s
METerological Information) are broadcast for potentially hazardous weather
considered of importance to aircraft. The update rate is approximately every 20
minutes.