Non-Garmin Antennas - Garmin GDL 52 Installation Manual

Table 3-4 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 GDL 51R/52R. Note that gain specifications are defined at the output of connector for
some antennas, e.g. GA 24 TNC. Additional attenuation will be required for any modifications made to
the cabling to these external antennas.

3.8 Non-Garmin Antennas

Table 3-5 lists non-Garmin antennas currently supported by the GDL 5X/5XR. For non-Garmin antennas,
follow the manufacturer's installation instructions. It is the installer's responsibility to ensure that their
choice of antenna meets FAA standards according to the specific installation.
Model Mount Style
Comant
Screw Mount,
2480-201
Teardrop Footprint
VHF/GPS*
Comant
420-10 XM Screw Mount ARINC
only** 743 Footprint
antenna
*The GPS antenna connector is TNC type. The VHF COM antenna connector is BNC type.
**GDL 51R/52R only
190-02087-10
Rev. 2
Table 3-5 Supported Non-Garmin Antennas
Conn Type
BNC/TNC*
TNC
Specifications
2332.5 to 2345 MHz
3.6 to 5.5 VDC
-40 to +85° C
Antenna
Mfr
Type
VHF COM/
Comant
GPS
XM Comant
GDL 50(R)/51(R)/52(R) Installation Manual
24 dB*
<1.2 dB
50 Ω
150 mA
Antenna Garmin
Part Order
Number Number
CI 2480-201 N/A
CI 420-10 N/A
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