User's Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Publication No. 150-041118 Page A-3
Rev. C Appendix A
May 2006
B. Place an AT-150 or similar broad band antenna 10 feet from the aircraft antenna. The antenna
should be at the same elevation and have the same polarity as the antenna on the aircraft.
C. Connect the antenna to the Service Monitor set to receiver at the desired frequency of test.
D. Transmit over the FLEXCOMM II radio on the test frequency and measure the received signal
power.
E. The insertion loss should be between –30 and –40 dB @ 150 MHz. Substitution of the receiving
antenna or changes in antenna placement can significantly effect measurement results.
F. Record the actual values measured and the measurement setup. Use this information to track
any degradation in the antenna system on future system checkouts.