UAV-1000xxx-001
ECCN 7A994
Page
20 | 32
apply, an attractive alternative solution may be to use 3 or 4 pair data
cable.
Please note that not all data cable is suitable for this application. Cables
with solid cores should not be used. Cables should be selected based on
the wear characteristics of their insulation material, including temperature
rating, resistance to solvents and oils, and flammability. Most inexpensive
commercial data cables have poor flammability properties.
8.7 Antenna Installation
8.7.1 Supplied Dipole Antenna
The following considerations should be taken into account when siting the
antenna.
•
The antenna should be well removed from any projections, the
engine(s) and propeller(s). It should also be well removed from
landing gear doors, access doors or other openings which will break
the ground plane for the antenna.
•
The antenna should be mounted in a vertical position when the
aircraft is in level flight.
•
Avoid mounting the antenna within 1 meter of the ADF sense antenna
or any COMM antenna and 2 meters from the transponder to the
DME antenna.
•
Where practical, plan the antenna location to keep the cable lengths
as short as possible and avoid sharp bends in the cable to minimize
the VSWR.
Electrical connection to the antenna should be protected to avoid loss of
efficiency due to exposure to liquids and moisture. All Antenna feeders
shall be installed in such a way that a minimum of RF energy is radiated
inside the aircraft.
8.7.2 Conventional OEM Monopole Antenna
The antenna should be installed accordin
g to the manufacturer’s
instructions.
