AFMS, Garmin GTX 33X and 3X5 XPDR with ADS-B 190-00734-15 Rev. 3
FAA APPROVED Page 7 of 17
The GTX 3X5 performs the following functions:
x Transmission of ADS-B out data on 1090 extended squitter (1090 MHz)
o Integration of data from internal and external sources to transmit the
following data per 14 CFR 91.227:
GPS Position, Altitude, and Position Integrity
Ground Track and/or Heading, Ground Speed, and Velocity Integrity
Air Ground Status
Flight ID, Call Sign, ICAO Registration Number
Capability and Status Information
Transponder Squawk Codes between 0000-7777.
Emergency Status
IDENT - initiates SPI (special position identification) pulse for 18
seconds
o Pressure Altitude Broadcast Inhibit
The GTX 335 performs the following additional functions:
x Reception of TIS-A traffic data from a ground station
x Provide TIS-A traffic alerting to the pilot via interfaced display and audio
output.
The GTX 345 performs the following additional functions:
x Reception of ADS-B In data on 1090 MHz
o ADS-B (Data directly from another transmitting aircraft)
o ADS-R (Rebroadcast of ADS-B data from a ground station)
x Reception of ADS-B In data on UAT (978 MHz)
o ADS-B (Data directly from another transmitting aircraft)
o ADS-R (Rebroadcast of ADS-B data from a ground station)
o TIS-B (Broadcast of secondary surveillance radar) (SSR) derived traffic
information from a ground station.
o FIS-B (Broadcast of aviation data from a ground station)
x Provide ADS-B traffic information and alerting to the pilot via an interfaced
display