TM 55-1510-222-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
G. AVIONICS FLIGHT CHECKS (CONT)
b. Transmitter selector switch -
#3 or #5.
c. Function
selector
switch
(UHF command set) - BOTH.
d. Frequency selector switches -
Select required test frequen-
cies.
e. Mode selector - As required.
f. Volume control - As required.
g. Squelch switch - As required.
h. Fly aircraft to a point 35 nau-
tical miles away from test sta-
tion.
i. Communicate with test sta-
tion when 20 miles away and
again at 3.5 miles.
j. At 35 nautical miles maintain
communication with test sta-
tion 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 frequen-
cies in low, middle, and high
ranges.
*6.
VHF radio set - Check as follows:
a. Altitude - 1000 feet AGL.
K 8 - 9
b. Transmitter selector switch
(audio control panel) - #1 or
#2.
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