TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TFM-550 Installation & Operating Instructions
TiL 99RE262 Rev A Issue 9
A-5
C.
Determine if the image frequency for the VOR/ILS Nav falls within the range of the TFM-
550. If so, select two sets of frequencies that will cause the TFM-550 to be set as close as
possible to the image frequency. Choose 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.
Establish the relative ultimate sensitivity of the ILS receiver using a NAV simulator, then
increase the simulator signal by 17db. Modulate the TFM-550 transmitter on or as close to
the following frequencies for at least 20 seconds. Listen for any noise or detected audio
signals on the receiver audio; look for any movement of flags or needles on the navigation
displays.
A placard is required unless the above test is performed and passed. The placard shall read
"Use of the transmitting function of the TFM-550 in the range of 36 to 40 MHz is
prohibited during IFR approach operations.". This placard must be placed adjacent to the
TFM-550 and RC-550 (if installed). The placard must be high contrast, clearly legible and
indelible.
Note: Where indicated by an asterisk (*), required action is to switch ATC-550 on and off
as often as necessary.
FREQUENCIES RESULTS
VOR/ILS #1
TFM-550
PASS
FAIL
108 36
108 162
108.1 36.0325
108.1 162.15
112 *
Image:
Содержание TFM-550
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