W Ithout O Perational L Imitations - Garmin GNS 480 Installation Manaul

General Information
1.3.10 Antenna Requirements
1.3.10.1 GPS Antennas
Antenna performance is critical to the GPS/WAAS operation. Refer to the following sections and tables
for selection of the GPS/WAAS antenna.
Other TSO-C144 antennas may meet the installation requirements of the GNS 480 (CNX80) models.
Contact Garmin to ensure compatibility and applicable operational limitations before beginning the
installation.
Record the GPS Antenna model and part number in the Post Installation Checkout Log,
and in the GNS 480 (CNX80) AFMS Limitations section.
1.3.10.1.1 Antennas Without Operational Limitations
The list of TSO-C144 antennas shown in Table 1-1 allow the GNS 480 (CNX80) models to meet TSO-
C146a requirements without the operational limitations specified in the Limitations Section 5.2 of this
manual.
Table 1-1 Antennas Without Operational Limitations
Model / Description Mount Style
Screw mount,
GA 35, GPS/WAAS
Teardrop
[6]
footprint
[1]
GA 36, GPS/WAAS Screw mount,
[6] ARINC 743
GA 37, GPS/WAAS Screw mount,
+XM [6] ARINC 743
Comant , Screw mount,
GPS/WAAS+VHF [4]
[6]
Comant GPS/WAAS Screw mount,
+VHF [4] [6]
Screw mount,
Comant GPS/WAAS
+XM+VHF [3] [4] [6]
A33W, WAAS [2] [4]
Screw mount
[6]
[1] Same mounting hole pattern as GA 56, but GA 35 antenna has a physically larger footprint.
[2] The A33W was designed to be a compatible replacement for the original A-33. See Appendix G for
removal and replacement instructions. The A33W is not intended for new installations. The GA 35 is
recommended for new installations.
[3] The GPS/WAAS connector is a TNC type. The VHF connector is a BNC type.
[4] Installation of this antenna is not covered by the Garmin GA Antenna AML STC SA01695SE.
[5] The GPS/WAAS connector is a TNC type. The XM connector is a TNC type. The VHF connector is a
BNC type.
[6] Compatible on aircraft equipped with SATCOM.
1-12
Conn
Type
Garmin
TNC
Antenna
Garmin
TNC
Antenna
Garmin
TNC
TNC
Antenna
TNC
Teardrop BNC Comant
COM [3]
TNC
BNC Comant
Teardrop
[3]
TNC
TNC
Teardrop Comant
BNC
COM
[5]
Garmin
TNCF
Antenna
560-0982-01 Rev L
NOTE
Mfr Part Number
013-00235-00
Aero AT575-93GW -TNCF-
000-RG-27-NM
013-00244-00
AT575-126GW-
Aero
TNCF-000-RG-27-
NM
013-00245-00
AT2300-126GW-
Aero
TNCF-000-RG-27-
NM
CI-2580-200
CI-2728-200
CI-2728-410
013-00261-00
Aero
GNS 480 (CNX80) Installation Manual
Garmin Order Additional
Number Requirements
013-00235-00
013-00235-00
013-00244-00
Must have
013-00244-00
GPS software
V3.1 or later to
013-00245-00
operate without
limitations.
013-00245-00
GPS software
N/A
V1.x or V2.x
operational
limitations in
N/A
Section 5.2 of
this manual
apply.
N/A
013-00261-00