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4-9
SPECTRUM ANALYZER OPERATION ( F M / A M - 1 2 0 0 s
ONLY)
F M / A M - 1 2 0 0 s
CONNECTORS AND
I N D I C A T O R S A P P L I C A B L E TO
SPECTRUM ANALYZER O P E R A T I O N :
11 T / R
C o n n e c t o r
3 1 CRT D i s p l a y
3 4 ANT C o n n e c t o r
3 7 VFD
F i g u r e 4 - 5
F M / A M - 1 2 0 0 s
F r o n t P a n e l
C o n t r o l s
A p p l i c a b l e t o S p e c t r u m A n a l y z e r
O p e r a t i o n
CONTROL
S E T T I N G
K e y b o a r d
PWR/OFF/BATT S w i t c h
VERTICAL
A t t e n u a t o r
S e l e c t o r C o n t r o l
HORIZONTAL S w e e p S e l e c t o r
C o n t r o l
VERT POS C o n t r o l
I N T C o n t r o l
FOCUS C o n t r o l
HORIZ P O S C o n t r o l
MODE S e l e c t o r C o n t r o l
T a b l e 4 - 1 0
F M / A M - 1 2 0 0 s
t o S p e c t r u m
A s r e q ' d
"PWR" o r " B A T T "
A n y p o s i t i o n
e x c e p t " O F F "
"1 M H z / D i v n
" M i d R a n g e "
A s r e q ' d
A s r e q ' d
" M i d R a n g e "
A s r e q ' d
F r o n t P a n e l C o n t r o l s A p p l i c a b l e
A n a l y z e r O p e r a t i o n
4 - 9 - 1
GENERAL
T a b l e 4 - 1 0 l i s t s t h e F M / A M - 1 2 0 0 s
f r o n t p a n e l c o n t r o l s a p p l i c a b l e t o t h e
S p e c t r u m A n a l y z e r f u n c t i o n .
T h e FM/AM- 1 2 0 0 s S p e c t r u m A n a l y z e r i s a
g e n e r a l p u r p o s e a n a l y z e r c a p a b l e o f m o n i t o r i n g RF s i g n a l s w i t h i n a r a n g e
o f 2 5 0 k H z t o 9 9 9 . 9 9 9 9
MHz.
T h e H O R I Z O N T A L S w e e p S e l e c t o r C o n t r o l
( 2 6 )
m u s t b e i n o n e o f t h e M H z / D i v o r k H z / D i v
p o s i t i o n s f o r s p e c t r u m a n a l y z e r
o p e r a t i o n .
T h e RF f r e q u e n c y d i s p l a y e d o n VFD ( 3 7 ) i s t h e s p e c t r u m
a n a l y z e r c e n t e r f r e q u e n c y .
T h e s p e c t r u m a n a l y z e r b a n d w i d t h i s a u t o -
m a t i c a l l y s e l e c t e d .
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