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TM 1-1510-223-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(7) Each localizer and glideslope
receiver shall provide positive
indications with no glideslope or
localizer
display
oscillations
occurring from the outer marker to
the approach end of the runway.
(8) Verify that marker beacon can be
received for a distance of not less
than one mile, when in horizontal
flight over the ground station cone
of silence marker at 10,000 feet
above ground level.
(9) Check marker beacon sensitivity
switch function as follows:
(a)
Marker beacon sensitivity
switch (pedestal extension) -
HI.
(b)
Fly toward marker beacon
station.
When marker
beacon
indicator
light
illuminates and audio tone
sounds, set sensitivity switch
to LO. Observe that marker
beacon indicator light and
audio tone cease.
(c)
Continue to fly toward station.
Verify that marker beacon
indicator
light
again
illuminates and audio tone
sounds.
*10. TACAN - Check as follows:
4-19
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