Garmin Gps/Xm Antennas; Gps Antennas; Xm Antennas; Gps Antenna Minimum Requirements - Garmin GDU 370 Installation Manual

6

Garmin GPS/XM Antennas

For non-Garmin antennas, follow the manufacturer's installation instructions. If using a Garmin GA 26C
or GA 26XM, refer to the accompanying installation instructions (190-00082-00 or 190-00522-03). For
GA 55/55A, or GA 56 or GA 57X antennas, refer to this section and the drawings in Appendix C.
Garmin recommends the antennas shown in Tables 6-1 and 6-3. However, any equivalent GPS or XM
antenna that meets the specifications listed in Tables 6-2 and 6-4 should work with the G3X.

6.1 GPS Antennas

Part
Model
Number
GA 26C 011-00149-04
GA 56 011-00134-00
GA 57X 011-01032-10
Characteristics
Frequency Range
Gain
Noise Figure
Nominal Output Impedance
Supply Voltage
Supply Current
Output Connector

6.2 XM Antennas

Part
Model
Number
GA 26XM 013-00268-10
GA 55 011-01033-00
GA 55A 011-01153-00
GA 57X 011-01032-10
G3X Installation Manual – Antennas
190-01115-01
Table 6-1. GPS Antennas
Description
GPS Antenna
GPS Antenna
GPS/XM Antenna
Table 6-2. GPS Antenna Minimum Requirements
Table 6-3. XM Antennas
Description
XM Antenna
XM Antenna
XM Antenna
GPS/XM Antenna
Weight Mounting Configuration
Flange, Magnetic, or Suction
NA Cup Mount (for in-cabin
mounting)
Stud mount (Tear-drop form
0.24 lbs (0.11 kg)
factor)
Thru-mount (ARINC 743 style
0.47 lbs (0.21 kg)
mount)
Specifications
1565 to 1585 MHz
16 to 25 dB typical, 40dB max.
<4.00 dB
50 ohms
4.5 to 5.5 VDC
up to 50 mA
BNC
Weight Mounting Configuration
Flange, Magnetic, or Suction
NA Cup Mount (for in-cabin
mounting)
Stud mount (Tear-drop form
0.25 lbs (0.11 kg)
factor)
Thru-mount (ARINC 743 style
0.43 lbs (0.20 kg)
mount)
Thru-mount (ARINC 743 style
0.47 lbs (0.21 kg)
mount)
Page 6-1
Revision A