Garmin Xm Antennas - Garmin G3X Installation Manual

6.3 Garmin 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
Table 6-5. XM Satellite Radio Antenna Minimum Requirements
Characteristics
Frequency Range
Gain (Typical)
Noise Figure
Nominal Output Impedance
Supply Voltage
Supply Current (maximum)
Operating Temperature Gain
*For each 1 dB gain over 24 dB, add 1 dB of attenuation into the antenna cable path between the antenna and the
GDU 375.
It is the installer's responsibility to ensure that their choice of antenna meets FAA standards according to
the specific installation. This installation manual discusses only the antennas listed in Tables 6-2 and 6-4.
Other antennas may be acceptable but their installation is not covered by this manual.
There are several critical factors to take into consideration before installing an antenna for a satellite
communications system. These factors are addressed in the following sections.
G3X Installation Manual – Antennas
190-01115-01
Table 6-4. XM Antennas
Description
XM Antenna
XM Antenna 0.25 lbs (0.11 kg)
XM Antenna 0.43 lbs (0.20 kg)
GPS/XM Antenna 0.47 lbs (0.21 kg)
Weight Mounting Configuration
Flange, Magnetic, or Suction
NA Cup Mount (for in-cabin
mounting)
Stud mount (Tear-drop form
factor)
Thru-mount (ARINC 743 style
mount)
Thru-mount (ARINC 743 style
mount)
Specifications
2332.5 to 2345 MHz
24 dB*
<1.2 dB
50 ohms
3.6 to 5.5 VDC
55 mA
-50 to +85°C
Page 6-3
Revision E