TM 55-1510-221-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
G. AVIONICS FLIGHT CHECKS (CONT)
*5
UHF radio set - Check as follows.
K3-7
a.
Altitude - 1200 feet above ground level
(AGL).
b.
Transmitter selector switch - #3 or #5.
c.
Function selector switch (UHF command
set) - BOTH.
d.
Frequency selector switches - Select
required test frequencies
e.
Mode selector - As required.
f.
Volume control - As required.
g.
Squelch switch - As required.
h.
Fly aircraft to a point 35 nautical miles
away from test station.
i.
Communicate with test station when 20
miles away and again at 35 miles.
j.
At 35 nautical miles maintain
communication with test station each 10
while flying a 360° flat turn (not to
exceed 5
bank). Communication should
be uniformly loud and clear through these
tests
k.
Repeat procedure for frequencies in low,
middle, and high ranges.
*6.
VHF radio set - Check as follows:
K8-9
a.
Altitude - 1000 feet AGL.
4-24
