Garmin GDL 69A Manual - Page 11

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Garmin GDL 69A Manual
General Antenna Requirements
Garmin recommends the Garmin XM antenna shown in the Table 1-9 below. These antennas are
approved with the certification of the GDL 69/69A. However, any equivalent XM antenna with
specifications listed in Table 1-10 should work with the GDL 69/69A. Antennas must provide protection
from direct lightning strikes. This STC does not support installations of equivalent antennas.
Model
Part Number
GA 37
013-00245-00
GA 55
011-01033-00
GA 55A
011-01153-00
GA 57*
011-01032-00
* Not recommended for new installations
Table 1-10. XM Satellite Radio Antenna Minimum Requirements
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 GDL 69/69A.
Table 1-11. GA 37, GA 55, and GA 55A XM Antenna Specifications
Frequency Range
Gain
Noise Figure
Nominal Output Impedance
Supply Voltage
Supply Current
Operating Temperature Range
Output Connector
GDL 69/69A Installation Manual
190-00355-02
Table 1-9. XM Antennas
Description
GPS/WAAS
XM Antenna
XM Antenna
GPS/WAAS + XM Antenna
2332.5 to 2345 MHz
24 dB ± 1 dB**
<1.2 dB
50 ohms
3.6 to 5.5 VDC
55 mA
-50 to +85°C
2332.5 to 2345 MHz
25 ± 2 dB
<1.2 dB
50 ohms
3.6 to 5.5 VDC
40 to 55 mA
-50 to +85 ° C
TNC
General Description
Mounting Configuration
Tear-drop
Stud mount Tear-drop form factor
Thru-mount (ARINC 743 style mount)
Thru-mount (ARINC 743 style mount)
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