TECHNISONIC INDUSTRIES LIMITED
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TDFM-136A Installation Instructions
Page A-6
TiL 09RE404 Rev C Issue 1
For the following tests (E & F), select a frequency at the top, middle and bottom of the band of the
TDFM-136A 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-
136A 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-136A
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:
