190-01499-02
GTX 3X5 Transponder TSO Installation Manual
Rev. 4
Page 3-9
3.8
GPS Antenna Requirements
Use an antenna in table 3-8 to get the best performance with the GTX 3X5 with internal GNSS receiver.
These antennas meet specifications in the document
Antenna Minimum Performance Specification for
Garmin’s GPS/WAAS Receiver System.
Table 3-8 GNSS Receiver Antennas
[1] Same mounting hole pattern as GA 56, except GA 35 has a physically larger footprint.
[2] The GPS antenna connector is a TNC and the VHF connector is BNC.
[3] The GPS antenna connector is a TNC connector, the XM connector is TNC, and the VHF
connector is BNC.
Model/Description
Connector
Type
Manufacturer
P/N
Garmin Order
Number
GA 35, GPS/WAAS [1]
TNC
Garmin
013-00235-( )
013-00235-( )
Aero Antenna
AT575-93G( )-TNCF-000-RG-27-NM
N/A
GA 36, GPS/WAAS
TNC
Garmin
013-00244-( )
013-00244-( )
Aero Antenna
AT575-126G( )-TNCF-000-RG-27-NM
N/A
GA 37, GPS/WAAS/XM
TNC
Garmin
013-00245-( )
013-00245-( )
Aero Antenna
AT2300-126G( )-TNCF-000-RG-27-NM
N/A
A33W, WAAS Antenna
TNC
Garmin
013-00261-( )
013-00261-( )
Aero Antenna
AT575-332G( )-TNCF-000-RG-27-NM
N/A
GPS/VHF Antenna [2]
TNC/BNC
Comant
CI-2580-200
N/A
GPS/VHF Antenna [2]
TNC/BNC
Comant
CI-2728-200
N/A
GPS/XM/VHF Antenna [3]
TNC/TNC/BNC Comant
CI-2580-410
N/A
GPS/XM/VHF Antenna [3]
TNC/TNC/BNC Comant
CI-2728-410
N/A
GPS/WAAS Antenna
TNC
Comant
CI-428-200
N/A
GPS/XM Antenna
TNC/TNC
Comant
CI-428-410
N/A