190-01499-10
GTX 35R/45R Installation Manual (Non-Certified Aircraft)
Rev. 1
Page 1-4
1.4
ADS-B Capabilities
1.4.1
ADS-B Out
The GTX 35R/45R include ADS-B Out capabilities when installed with GPS position source that meets
the TSO performance requirements specified in 14 CFR 91.227
1.4.1.1 Garmin Altitude Encoder
In most installations, the GTX 35R/45R receives pressure altitude data from the G3X system. An optional
GAE sensor module is available for installations requiring pressure altitude data that meets the
requirements of TSO-C88b. The sensor module connects to the aircraft static system. The module attaches
to the rear connector plate with two screws, and has short, unshielded wires to connect to the GTX 35R/
45R unit through the rear D-sub connector.
NOTE
The GAE sensor does not need to be disconnected if the GTX 35R/45R is removed from the
mounting rack.
1.4.2
ADS-B In
The GTX 45R includes receivers for both the UAT and the 1090 MHz frequency bands for all ADS-B In
data reception capabilities. The GTX 45R receives ADS-B transmissions from other ADS-B Out equipped
aircraft, ADS-R, and TIS-B information from ground stations. The GTX 45R supplies ADS-B data to G3X
Touch displays, certain Garmin panel-mount navigators, and certain portable devices via Bluetooth.
1.4.3
Installation Approval for ADS-B Systems
The conditions and tests necessary for TSO approval of the GTX 35R/45R are minimum performance
standards. It is the responsibility of the installer to determine if the aircraft installation conditions are
within the TSO standards.
All GTX 35R/45R unit functions are design-approved under the TSO. Changes or modifications to any
unit that are not approved can void the compliance to necessary regulations and authorization for continued
equipment usage.
It is the installer’s responsibility to make sure the ADS-B Out system installation is compliant with
14 CFR 91.227.
1.5
FIS-B Capabilities
FIS-B information is for pilot-planning and pilot near-term decisions. The information shown are areas of
inclement weather that are out of visual range or are not easily seen.
The GTX 45R receives FIS-B information from UAT ground stations in the United States. A direct line-of-
sight between the ground station and aircraft is necessary to receive FIS-B data. The GTX 45R supplies
FIS-B data to G3X Touch displays, certain Garmin panel-mount navigators, and certain portable devices
via Bluetooth. Supported FIS-B data includes:
•
NOTAM (includes TFRs)
•
AIRMET
•
SIGMET
•
SUA
•
METAR
•
TAFs
•
PIREP
•
Winds/Temps Aloft
