User's Manual

08RE398 TDFM-136B Installation Instructions
For the following tests (E & F), select a frequency at the top, middle and bottom of the
band of the TDFM-136B Transceiver.
VHF Band (138 to 174 Mhz)
Frequency No. 1
Frequency No. 2
Frequency No. 3
E. At a safe altitude engage the autopilot or stability augmentation system. Modulate the
TDFM-136B on the above frequencies for at least 20 seconds. Observe any effect on the
autopilot or stability augmentation system.
Observations:
F. Perform a coupled ILS approach to the aircraft’s certified limits. Modulate the TDFM-136B
transmitter on the above frequencies for at least 20 seconds. Observe any effect on the
autopilot. Repeat for second flight director/autopilot if so equipped.
Observations:
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