Environmental Specifications - Garmin GDU 370 Installation Manual

2.2.4 Antennas
Table 2-4 lists Garmin and non-Garmin antennas currently supported by the GDU 37X. Refer to Section
6 for Garmin antenna installation information. For non-Garmin antennas, follow the manufacturer's
installation instructions.
Only a single GPS antenna is required for installations using more than
one GDU 37X unit, as the GDU 37X will "share" the GPS information
with all GDU 37X units.
Model Mount Style
Comant Screw
2480-201
Mount,
VHF/GPS Teardrop
[1] Footprint
Comant Screw
420-10 XM Mount,
only ARINC 743
Antenna Footprint
Suction Cup,
GA 26C Magnetic or
Flange Mt
Ground
GA 26XM
Plane Mt
GA 55 Stud Mount
GA 55A ARINC 743
GA 56 Stud Mount
Screw
GA 57X Mount,
[2] ARINC 743
Footprint
[1] The GPS antenna connector is TNC type. The VHF COM antenna connector is BNC type.
The GPS antenna should provide a gain of 16 to 25dB, and requires a
4.5V to 5V supply voltage that can provide 50mA max.

2.3 Environmental Specifications

The GDU 37X has an Operating Temperature Range of -20°C to +60°C.
G3X Installation Manual – GDU 37X
190-01115-01
NOTE
Table 2-4. GDU 37X Supported Antennas
Conn Antenna
Type Type
VHF
BNC
COM,
TNC
GPS
TNC XM
BNC GPS
TNC XM
TNC XM
TNC XM
BNC GPS
BNC GPS
TNC XM
NOTE
Antenna Part
Mfr
Number
Comant CI 2480-201
Comant CI 420-10
Garmin 011-00149-04
Garmin 013-00268-10
Garmin 011-01033-00
Garmin 011-01153-00 010-10598-00
Garmin 011-00134-00 010-10040-01
Garmin 011-01032-10 010-11370-10
Garmin Order
Number
N/A
N/A
010-10052-04
010-11373-00
010-10600-01
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Revision A