A-5
C.
Determine if the image frequency for the VOR/ILS Nav falls within the range of the TFM-138
unit. If so, select a two sets of frequencies that will cause the TFM-138 transceiver to be set
as close as possible to the image frequency. Chose one set in the localizer frequency range,
and one in the VOR frequency range. Record those values in the spaces provided in the
following chart. Modulate the TFM-138 transmitter on the following frequencies for at least
20 seconds. Listen for any noise or detected audio signals on the receiver audio; look for
any moment of flags or needles on the navigation display.
FREQUENCIES
RESULTS
VOR/ILS #1
TFM-138
PASS
FAIL
108.000
162.0000
108.100
162.1500
Image:
Image:
FREQUENCIES
RESULTS
VOR/ILS #2
TFM-138
PASS
FAIL
108.000
162.0000
108.100
162.1500
Image:
Image:
NOTES:
Summary of Contents for TFM-138
Page 13: ...2 2 FIGURE 2 1 Operator s Switches and Controls TFM 138 F10 B software...
Page 24: ...3 2 FIGURE 3 1 Outline Drawing for Model TFM 138 Transceiver...
Page 26: ...3 4 Figure 3 2 Wiring Connections for TFM 138 Transceiver...
Page 30: ...3 8 FIGURE 3 4 Microphone and Sidetone Level Main and Guard Squelch Adjustment Access Holes...
Page 42: ...STEP SYSTEM PASS FAIL NOTES A 11...
