O P E R AT I O N M A N U A L
I F F - 7 0 1 T i
1 - 2 - 3
P a g e 7
J u l 1 / 0 0
3 . 1 3 C O M M U N I C A T I O N O PER A T I O N
( R E C E I V E R T E S T S )
( T YPI C A L C O N T R O L SET T I N G S)
ST EP PR O C ED U R E
1 . M O N I T O R M ET ER F U N C T I O N
S w i t c h
R F t o v e r if y p r o p e r l e v e l i n g o f
i n t e r n a l S i g n a l G e n e r a t o r o n t h e
M O N I T O R M e t e r .
3 0 % o r 1 0 0 % t o ve r if y o r se t 3 0 %
s i n e - w a v e m o d u l a t i o n t o n e o n t h e
M O N I T O R M e t e r .
2 . C O U N T ER M O D E Sw it ch
G EN t o r e a d o u t t h e S i g n a l
G e n e r a t o r f r e q u e n c y o n t h e D I G I T AL
D i s p l a y w h e n o p e r a t i n g i n f i x e d
( F I X E D ) o r v a r ia b l e ( V A R ) m o d e s .
3 . F R EQ U EN C Y M O D E Sw it ch
C O M F I X E D i s m a n d a t o r y i n r a m p
o p e r a t i o n a n d i s u s e d o n b e n c h f o r a
s t a b l e c h a n n e l c e n t e r f r e q u e n c y .
C O M 2 5 K H z t o c h e c k C O M R e c e i v e r
c h a n n e l s . S e t V A R F R E Q C o n t r o l s
a s d e s i r e d f r o m 1 1 8 . 0 0 0 t o
1 5 6 . 0 0 0 M H z , i n 2 5 K H z s t e p s .
C O M 8 . 3 3 K H z t o ch e ck C O M
R e c e i v e r c h a n n e l s . S e t V A R F R E Q
C o n t r o l s a s d e s i r e d f r o m 1 1 8 . 0 0 0 t o
1 5 6 . 0 0 0 M H z , i n 8 . 3 3 k H z s t e p s .
( Se e T a b l e 1 )
4 . V A R F R E Q C o n t r o l s ( F R EQ U E N C Y
M O D E S w i t ch e s se t t o C O M
2 5 K H z o r C O M 8 . 3 3 K H z)
U s e a s n e e d e d t o c h a n g e C O M
f r e q u e n c y i n 2 5 k H z s t e p s o r
8 . 3 3 k H z s t e p s a s d e t e r m i n e d b y t h e
f r e q u e n c y m o d e s w i t c h .
5 . T U N E C o n t r o l
A d j u s t u n t i l T U N E I n d i c a t o r s t o p s
i l l u m i n a t i n g , i n d i c a t i n g S i g n a l
G e n e r a t o r i s i n t h e f i n e t u n e r a n g e .
ST EP PR O C ED U R E
6 . F I N E T U N E Sw it ch
P r e s s a n d a d j u s t T U N E C o n t r o l u n t i l
M O N I T O R M e t e r i n d i c a t e s l e a s t
d e f l e ct i o n f r o m l e f t .
7 . O U T PU T AT T EN U AT O R C o n t r o l
U s e a s n e e d e d t o e s t a b l i s h R e c e i v e r
s e n s i t i v i t i e s .
8 . R F O U T C o n n e c t o r
C o n n e c t t o R e c e i v e r A n t e n n a
C o n n e c t o r , o r a t t a c h A n t e n n a i n
r a m p o p e r a t i o n .
9 . T O N E S E L E C T S w i t c h
S e l e c t a u d i o t o n e : 1 0 2 0 , 4 0 0 , 1 3 0 0
o r 3 0 0 0 H z a s d e s i r e d ; o r M O D I N t o
a p p l y e x t e r n a l m o d u l a t i o n t h r o u g h
M O D I N / E X T F R E Q C T R I N
C o n n e c t o r ( b e n c h t e s t i n g o n l y ) .
1 0 . M O D I N / E X T F R E Q C T R I N
C o n n e c t o r ( T O N E S E L E C T S w i t c h
se t t o M O D I N )
U s e t o a p p l y e x t e r n a l m o d u l a t i o n t o
S i g n a l G e n e r a t o r .
1 1 . M A S T E R M O D L E V E L C o n t r o l
S e t t o C A L f o r 3 0 % e a c h t o n e o r
v a r ia b l e f r o m 3 % t o 5 5 % .
1 2 . P W R / B A T S w i t c h
PWR t o u s e e x t e r n a l a c l i n e p o w e r
t h r o u g h t h e A C I N C o n n e c t o r .
B A T t o i n i t i a t e o p e r a t i o n u s i n g
i n t e r n a l B a t t e r y p o w e r .
Summary of Contents for NAV-402AP-3
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