Garmin International Inc 01246 사용자 설명서
GDL 88 TSO Installation Manual
Page 1-5
190-01122-00
Rev. A
1.3.7 UAT/1090 Requirements
The GDL 88 requires UHF antenna(s) meeting the following specifications:
Vertically polarized
The VSWR produced by the antenna does not exceed 1.7:1 at 978 MHz and 1.5:1 at 1090 MHz.
TSO-C66, TSO-C74, or TSO-C112 antennas that also meet the VSWR specification.
NOTE
Certain types of transponder antennas that utilize very thin radiator elements are only
intended for use at 1030 and 1090 MHz. These types of antennas should be evaluated on
a model-by-model basis to determine their suitability as UAT data link antennas.
intended for use at 1030 and 1090 MHz. These types of antennas should be evaluated on
a model-by-model basis to determine their suitability as UAT data link antennas.
CAUTION
Operating the GDL 88 without RF terminations on the top or bottom UAT antenna ports
can result in equipment damage. Always operate the GDL 88 with the top and bottom
UAT antenna ports terminated with a VSWR ration of 3.0:1 or less.
can result in equipment damage. Always operate the GDL 88 with the top and bottom
UAT antenna ports terminated with a VSWR ration of 3.0:1 or less.
1.3.8 GPS Antenna Requirements
Antenna performance is critical to the GPS/SBAS operation. The antennas listed in Table 1-8 provide
acceptable performance with the GDL 88.
acceptable performance with the GDL 88.
Table 1-8. Approved GPS/SBAS Antennas
Model/Description
Conn Type
Mfr
Part Number
Garmin
Order
Number
GA 35, GPS/WAAS
[1]
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
[2]
Comant
CI-2580-200
N/A
GPS/VHF Antenna
TNC/BNC
[2]
Comant
CI-2728-200
N/A
GPS/XM/VHF Antenna
TNC/TNC/BNC
[3]
Comant
CI-2580-410
N/A
GPS/XM/VHF Antenna
TNC/TNC/BNC
[3]
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
[1] Same mounting hole pattern as GA 56, but GA 35 antenna has a physically larger footprint.
[2] The antenna connector is a TNC type. The VHF connector is a BNC type.
[3] The antenna connector is a TNC type. The XM connector is a TNC type. The VHF connector is a
BNC type.