Garmin GTX 325 User Manual

190-01499-02 GTX 3x5 TSO Installation Manual
Rev. 1 Page 1-10
1.12 GPS Antenna Requirements
Antenna performance is critical to GNSS receiver operation. Antennas listed in table 1-10 meet
specifications outlined in Antenna Minimum Performance Specification for Garmin’s GPS/WAAS Receiver
System. To achieve acceptable performance with the GTX 335 or GTX 345 with internal GNSS receiver,
antennas listed table 1-10 must be used.
Table 1-10 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 TNC
Garmin 013-00235-( ) 013-00235-( )
Aero Antenna
AT575-93G( )-TNCF-000-RG-27-
NM
GA 36, GPS/WAAS TNC
Garmin 013-00244-( ) 013-00244-( )
Aero Antenna
AT575-126G( )-TNCF-000-RG-27-
NM
GA 37, GPS/WAAS/
XM
TNC
Garmin 013-00245-( ) 013-00245-( )
Aero Antenna
AT2300-126G( )-TNCF-000-RG-27-
NM
A33W, WAAS
Antenna
TNC
Garmin 013-00261-( ) 013-00261-( )
Aero Antenna
AT575-332G( )-TNCF-000-RG-27-
NM
GPS/VHF Antenna TNC/BNC Comant CI-2580-200 N/A
GPS/VHF Antenna TNC/BNC Comant CI-2728-200 N/A
GPS/XM/VHF
Antenna
TNC/TNC/BNC Comant CI-2580-410 N/A
GPS/XM/VHF
Antenna
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

Garmin GTX 325 Specifications

General

Brand	Garmin
Model	GTX 325
Category	Marine Radio
Language	English