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GDR-XXXX NAV/COM INSTALLATION MANUAL
CHAPTER 2 – SYSTEM INSTALLATION
64-000109
Page 33 of 62
C. MB Antenna
The GDR requires a 50 Ohm horizontally polarized Marker Beacon antenna
meeting TSO-C36e. Some possible antennas are listed in Table 11.
•
Use RG-400 or equivalent, not to exceed 2dB of signal loss.
•
Antenna should be mounted on the bottom of the aircraft, along the
centerline of the airframe at least 3 feet from other antennas.
•
In multiple GDR installations, a Comant CI 165 dual Marker Beacon
antenna (or equivalent) may be used.
•
Avoid sharp bends of the coax.
•
Maintain at least a 2 foot distance between MB and NAV or COM coaxial
cables when routed parallel to each other.
Table 11: List of MB Antennas
Vendor
Part Number
Maximum Airspeed
Freq. Range
Dayton Granger
EMB10-14
600 knots
75 MHz
Comant
CI 102
400 knots
75 MHz
Comant
CI 118
Not specified
75 MHz
Содержание GDR- COM Series
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