Garmin GDL 52 Installation Manual

Also see for GDL 50: User guide

190-02087-10 GDL 50(R)/51(R)/52(R) Installation ManualRev. 2 Page 3-43.8 Non-Garmin AntennasTable 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 theirchoice of antenna meets FAA standards according to the specific installation.Table 3-4 XM Satellite Radio Antenna Minimum RequirementsCharacteristics SpecificationsFrequency Range 2332.5 to 2345 MHzGain (Typical) 24 dB*Noise Figure <1.2 dBNominal Output Impedance 50 ΩSupply Voltage 3.6 to 5.5 VDCSupply Current (maximum) 150 mAOperating 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 theantenna and the GDL 51R/52R. Note that gain specifications are defined at the output of connector forsome antennas, e.g. GA 24 TNC. Additional attenuation will be required for any modifications made tothe cabling to these external antennas.Table 3-5 Supported Non-Garmin AntennasModel Mount Style Conn Type AntennaType MfrAntennaPartNumberGarminOrderNumberComant2480-201VHF/GPS*Screw Mount,Teardrop Footprint BNC/TNC* VHF COM/GPS Comant CI 2480-201 N/AComant420-10 XMonly**antennaScrew Mount ARINC743 Footprint TNC XM Comant CI 420-10 N/A*The GPS antenna connector is TNC type. The VHF COM antenna connector is BNC type.**GDL 51R/52R only