IFR Systems FM/AM-1200S/A Operation Manual page 36

Communications service monitor
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I T E M
NAME
-
D E S C R I P T I O N
iiZ5iii-j
F u l l
r e c e i v e c a p a b i l i t y e x i s t s ,
e v e n w h e n t r a n s -
m i t t i n g i n t o T / R
C o n n e c t o r ( 1 1 ) .
DUP GEN P o s i t i o n
-
P l a c e s F M / A M - 1 2 0 0 S / A
i n t o g e n e r a t e m o d e w i t h t h e
G e n e r a t o r o n a n d o f f s e t b y a p r e - p r o g r a m m e d
a m o u n t .
I n t h i s p o s i t i o n ,
a u t o m a t i c r e c e i v e m o d e i s
o v e r r i d d e n w h e n t r a n s m i t t i n g i n t o T / R
C o n n e c t o r
( 1 1 ) w i t h e x t e r n a l t r a n s m i t t e r .
T h e DUP GEN
O u t p u t i s o n l y a v a i l a b l e a t t h e T / R
C o n n e c t o r
( 1 1 ) w i t h t h e l e v e l c o n t r o l l e d b y t h e RF L e v e l
A t t e n u a t o r
C o n t r o l
( 9 ) .
4 0 .
VOLUME C o n t r o l
C o n t r o l s v o l u m e o f F M / A M - 1 2 0 0 S / A
s p e a k e r .
4 1 .
-
S U L C H C o n t r o l
-
=
C o n t r o l s r e c e i v e r s q u e l c h t h r e s h 0 1 d .
S q u e l c h d i s a b l e s a u d i o o u t -
p u t ,
f r e q e r r o r a n d m o d u l a t i o n i n d i c a t o r s w h e n RF i n p u t a t ANT
C o n n e c t o r ( 3 4 )
f a 1 1 s b e 1 ow s q u e l c h t h r e s h o l d .
4 2 .
S I G I n d i c a t o r L a m p
When i l l u m i n a t e d ,
i n d i c a t e s i n p u t l e v e l a t ANT C o n n e c t o r ( 3 4 )
i s
a b o v e s q u e l c h t h r e s h o l d o f F M / A M - 1 2 0 0 S / A
r e c e i v e r .

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