Garmin GDL 52 Installation Manual - Page 23

Non-Garmin Antennas, Table 3-4, XM Satellite Radio Antenna Minimum Requirements

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Table 3-4 XM Satellite Radio Antenna Minimum Requirements Characteristics Specifications Frequency Range 2332.5 to 2345 MHz Gain (Typical) 24 dB* Noise Figure

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190-02087-10
GDL 51(R)/52(R) Installation Manual
Rev. 1
Page 3-4
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.
Table 3-4
XM Satellite Radio Antenna Minimum Requirements
Characteristics
Specifications
Frequency Range
2332.5 to 2345 MHz
Gain (Typical)
24 dB*
Noise Figure
<1.2 dB
Nominal Output Impedance
50
Ω
Supply Voltage
3.6 to 5.5 VDC
Supply Current (maximum)
150 mA
Operating Temperature Gain
-40 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 5XR. 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.
Table 3-5
Supported Non-Garmin Antennas
Model
Mount Style
Conn Type
Antenna
Type
Mfr
Antenna
Part
Number
Garmin
Order
Number
Comant
2480-201
VHF/GPS*
Screw Mount,
Teardrop Footprint
BNC/TNC*
VHF COM/
GPS
Comant
CI 2480-201
N/A
Comant
420-10 XM
only
antenna
Screw Mount ARINC
743 Footprint
TNC
XM
Comant
CI 420-10
N/A
*The GPS antenna connector is TNC type.
The VHF COM antenna connector is BNC type.