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3 ) I n t h e s t a t e o f a b o v e 2 ) , s e t t h e m o d u l a t i o n t o 0 % '
C o n n e c t t h e f r e q u e n c y c o u n t e r t o a t e s t p o i n t T P 1 o f
l C 2 O 2 . A d i u s t a s e m i - s o l i d r e s i s t o r V R 2 0 1 s o t h a t t h e
f r e q u e n c v c o u n t e r r e a d s 1 9 K H z i 5 0 H z '
3. AM Adlustment
1 ) C o n n e c t t h e o u t p u t o f A M - S G t o a l o o p a n t e n n a '
Connect the loop antenna attached to the main body
t o t n e A M a n t e n n a t e r m i n a l , t a k e t h e o u t p u t f r o m
p i n 1 2 o f l C 2 O 1 , a n d c o n n e c t i t t o t h e A C v o l t m e t e r '
2 ) S e t t h e A M - S G f r e q u e n c y t o 5 2 0 K H z ' T u n e p o i n t e r t o
the lowest frequency. Adiust the local oscillator trans-
former so that 520 KHz can be received from AM-SG
3 ) S e t t h e A M - S G f r e q u e n c y t o 1 6 5 0 K H z ' T u n e p o i n t e r
to the highest frequency. Adjust the local oscillator
t r i m m e r C 3 1 7 s o t h a t 1 6 5 0 K H z c a n b e r e c e i v e d f r o m
( a
AM'sG.
-
4 l S e t t h e A M - S G f r e q u e n c y t o 6 0 0 K H z ' T u n e t h e s e t s o
t h a t 6 0 0 K H z c a n b e r e c e i v e d f r o m A M - S G ' A d j u s t t h e
tuning tra'nsformer T301 so that the AC voltmeter
registers the maximum reading.
D I A L C O R D , S T R I N G I N G
l,l o'7 ê. o ,Lz 5 ç
5 ) S e t t h e A M S G f r e q u e n c y t o 1 4 0 0 K H z . T u n e t h e s e
s o t h a t 1 4 0 0 K H z c a n b e r e c e i v e d f r o m A M - S G . A d l u s
the trimmer capacitor C302 so that the AC voltmete
r e g i s t e r s t h e m a x i m u m r e a d i n g .
6 ) R e p e a t s t e p s 2 ) t h r o u g h 5 ) s e v e r a l t i m e s .
4. Adjustment of LW
1 ) O b t a i n a s t a t e a s i n t h e a d , i u s t m e n t o f M W .
2 ) S e t A M - S G f r e q u e n c y a t 1 4 0 k H z . T u n e s e t i n d i c a t i o
to the lowest frequency. Adjust the local transforme
T 3 0 4 t i l l 1 4 0 k H z c a n b e r e c e i v e d f r o m A M ' S G . A d i u s
t h e t u n i n g t r a n s f o r m e r T 3 0 2 s o t h a t t h e m a x . r e e a d i n g
o b t a i n e d o n a n A C v o l t m e t e r .
3 ) S e t A M - S G f r e q u e n c y t o 3 6 0 k H z . T u n e s e t i n d i c a t i o
t o t h e h i g h e s t f r e q u e n c y . A d j u s t t h e t r i m m e r c a p a c i t
C 3 1 9 t i l l 3 6 0 k H z i s r e c e i v e d f r o m A M - S G . A d j u s t t h
t r i m m e r c a p a c i t o r C 3 0 4 s o t h a t t h e m a x . r e a d i n g
o b t a i n e d o n a n A C v o l t m e t e r .
4 ) R e p e a t s t e p s 2 ) a n d 3 ) s e v e r a l t i m e s '
5 ) S e t A M - S G f r e q u e n c y t o 1 4 0 k H z . T u n e s o t h a t 1 4 0 k H
can be received from AM-SG. Adjust lF transforme
T 3 0 5 a n d T 3 0 6 s o t h a t t h e m a x . r e a d i n g i s o b t a i n e d o
a n A C v o l t m e t e r .
f q l
{-\'7
I
0
2 ) / 2 r
T U T ] I N G S H A F T
- 1 3 -
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