TM 55-1510-222-MTF
P R O C E D U R E
T R O U B L E S H O O T I N G
R E F E R E N C E
*8.
ADF radio set - Check as follows:
a. Mode selector switch - ANT.
Tuning meter and frequency
indicator should be illuminat-
ed. Allow sufficient time for
warm-up.
b.
c..
Range switch - Set to 190 to
400 kHz range.
Tune control - Tune in a sta-
tion and peak the tuning me-
ter.
d. Frequency dial - Note reading
under hairline.
c.
f.
BFO switch - BFO.
Tune control - Adjust for zero
beat.
The frequency dial
should read the same as in
step d.
g.
h.
BFO switch - OFF.
Tune in a low frequency sta-
tion on each of the other
bands (400 to 850 and 850 to
1750 kHz) to insure that band
switching is taking place.
NOTE
Do not key transmitter when set to WWV.
(2) Mode selector - USB.
(3) Listen to the time tick,
tone, or voice announce-
ments. The tone prefera-
ble.
K19-26
4-27
