RT-2087/ZPX-A User and Installation Guide
UAV-1005667-001 Rev A
ECCN 7A994
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7.7 Transponder Antenna
An appropriate L-band antenna, designed to receive and transmit vertically
polarized signals at 1030 and 1090 MHz, must be installed.
Prior to powering ZPX-A, ensure an appropriate antenna or
commercially available 50
Ω
load is connected to the SMA port.
Powering ZPX-A without an attached load will result in damage
to the device not covered under warranty.
The following antennas may be used:
•
Standard 50Ω vertically polarized antenna with VSWR ≤ 1.5:1 over
the 1030 to 1090 MHz frequency band
•
TSO-C74( ) or TSO-C112( ) antennas that meet the above
specification
•
uAvionix non-TSO SMA dipole: P/N UAV-1004675-001
Take into consideration the antenna manufacturer’s installation instructions.
General guidance is provided below.
•
The antenna should be mounted external to the airframe, and
typically on the bottom of the aircraft.
The antenna should be mounted in a vertical orientation when the aircraft is
in level flight. For uAvionix UAV-1004675-001, see below for proper
orientation.
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