Installation Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Page 6-2 Publication No. 150-041118
Section 6 – System Checkout Rev A
Sep 2001
12. Using a signal generator or a known available channel, verify that all transceivers can
receive normal signals. Standard signals that may be used are air traffic control tower or
ATIS frequencies for AM channels (RT-5000 only) and NOAA weather channels for VHF
FM frequencies. Verify the frequencies above
13. Select Transceiver #1 using the audio panel and attempt to transmit to a known good
receiver (Both the transmitter and the receiver must be using the same frequency). Press
the aircraft PTT switch and verify that the C-5000 display shows a transmit condition and
that the receiver detects a valid voice signal.
14. Repeat Step 9 for every transmitter in the system.
Please note that when testing the RT-5000 Transceiver, verify that the radio has been put
into AM mode if attempting to communicate with a Air Traffic control tower or the ATIS
channel. If the radio is accidentally left in FM mode, signal quality will be severely degraded
in the both the transmit, and receive functions.
15. If possible take a flight test and determine performance at various altitudes and distances.
There is no possible way to predict actual performance since variables such as antenna
placement, coax quality, ground station quality are different for every installation. The key
issue is to determine if the system will function acceptably for the user’s application.
16. Verify that the Transceivers in the system do not interfere with each other and other
systems on the aircraft such as AM COMS and GPS receivers. If interference exists, adjust
antenna locations to maximize distance (horizontal and vertical) between antenna systems.