Garmin GDL 69, Руководство по установке

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General Description
Page 1-6 GDL 69/69A Installation Manual
Revision E 190-00355-02
1.8.1 General Antenna Requirements
Garmin recommends the Garmin XM antenna shown in the Table 1-5 below. These antennas are
approved with the certification of the GDL 69/69A. However, any equivalent XM antenna with
specifications listed in Table 1-6 should work with the GDL 69/69A. Antennas must provide protection
from direct lightning strikes. This STC does not support installations of equivalent antennas.
Table 1-5. XM Antennas
Model Part Number Description Mounting Configuration
GA 55 011-01033-00 XM Antenna Stud mount Tear-drop form factor
GA 55A 011-01153-00 XM Antenna Thru-mount (ARINC 743 style mount)
GA 57 011-01032-00 GPS/WAAS + XM Antenna Thru-mount (ARINC 743 style mount)
Table 1-6. XM Satellite Radio Antenna Minimum Requirements
Frequency Range 2332.5 to 2345 MHz
Gain (Typical) 24 dB ± 1 dB**
Noise Figure <1.2 dB
Nominal Output Impedance 50 ohms
Supply Voltage 3.6 to 5.5 VDC
Supply Current (maximum) 55 mA
Operating Temperature Gain -50 to +85°C
** 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 1-7. GA 55, GA 55A, GA 57 XM Antenna Specifications
Frequency Range 2332.5 to 2345 MHz
Gain 25 ± 2 dB
Noise Figure <1.2 dB
Nominal Output Impedance 50 ohms
Supply Voltage 3.6 to 5.5 VDC
Supply Current 40 to 55 mA
Operating Temperature Range -50 to +85 ° C
Output Connector TNC