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(4)
ALIGNMENT FOR 450KHz TRAP
a.
Required Instrument
RF Signal Generator (RFSG) With Loop Antenna
SSVM
b.
Alignment Procedure
Setting
RECEIVING
450KHz
FREQUENCY
BAND
LW
AM MODE
AM
TONE
NORM
WIDE / NARR.
WIDE
MONO
RF GAIN
MAX.
ADJUSTMENT
T9
c.
Instrument Connection
SSVM
TP4
TP8
(1)
Turn the radio to ON and tune receiving frequency to LW 450KHz.
(2)
Feed a 450KHz signal with 1KHz 30% modulation to loop antenna.
(3)
Connect a SSVM to speaker output (TP4).
(4)
Adjust T9 to get minimum reading of SSVM.
T9
30%
450 KHz
1 2
Procedure
RFSG
106
dBµ
RF OUT
Loop Antenna
TP5
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