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(6)
ALIGNMENT FOR USB/LSB FINE TUNING
a.
Required Instrument
RF Signal Generator (RFSG)
Frequency Counter
b.
Alignment Procedure
Setting
RECEIVING
15.1 MHz
FREQUENCY
BAND
SW
AM MODE
LSB
TONE
NORM
WIDE / NARR.
NARR.
MONO
RF GAIN
MAX
TUNING STEP
SLOW
CENTER
VOLUME
POSITION
ADJUSTMENT
SVR2
c.
Instrument Connection
Frequency Counter
0.000 KHz
(1)
Turn the radio to on and tune the receiving frequency to 15.1MHz.
(2)
Set the AM mode to "USB" mode.
(3)
Set the tuning step to "SLOW".
(4)
Connect RFSG to ANT IN (TP2) and set RF output to 15.1MHz 40
emf/dBµ without modulation.
(5)
Connect a frequency counter to speaker output (TP4).
(6)
Adjust SVR2 to have a reading of 40Hz
Rotary tuning change the receiving frequency from 15.1MHz to
15.101MHz.
SSVM
TP4
TP8
Procedure
SVR2
RFSG
0%
15.000 MHz
1 4
10Hz increment while
40
dBµ
TP2
RF OUT
TP5
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