IFR Systems FM/AM-1200S/A Operation Manual page 214

Communications service monitor
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S T E P
PROCEDURE
I f :
w a s p r o g r a m m e d , t h e c a l l w i l l
e n d .
P r o c e e d t o
S t e p 1 4 .
5 .
A f t e r t h e M o b i l e u n i t
h a s
b e e n c a l l e d ,
t h e f o l l o w i n q s c r e e n w i l l
a p p e a r o n t h e V F D :
On t h i s s c r e e n ,
t h e " X X D B "
i n d i c a t i o n i s t h e p r o g r a m m e d d B L e v e l
t o b e t e s t e d .
T h e
"-
X X X "
s e g m e n t o f t h e s c r e e n i s t h e G e n e r a t e
L e v e l o f t h e F M / A M - 1 2 0 0 5 .
T h e f i r s t d i g i t o f t h e
" =
X X X "
w i l l
b l i n k ,
i n d i c a t i n g t h i s
i s t h e c u r s o r p o s i t i o n .
T h e M O D U L A T I O N M e t e r ( 1 ) w i l l
b e a t f u l l d e f l e c t i o n a t t h i s t i m e .
A
:
1
6 .
C o n n e c t t h e UUT H a n d s e t A u d i o O u t p u t t o t h e EXT M O D I S I N A D
C o n n e c t o r ( 1 5 ) o f t h e F M I A M - 1 2 0 0 s .
- 1
T h e S I N A D M e t e r h a s a r a n g e o f 3 d B t o 2 0 d B a t
1 k H z ,
a n a c c u r a c y o f +1 d B a t 1 2 d B S I N A D a n d a n
I n p u t L e v e l
o f 0 . 2 5 VRMS t o 2 VRMS ( 1 0 VRMS M a x i -
m u m ! .
A
i
7 .
P l a c e t h e 1 k H z TONE GENERATOR S w i t c h
( 7 )
t o I N T L .
V v T I T I
8 .
A d j u s t t h e RF L e v e l C o n t r o l
( 3 ) a n d RF L e v e l V e r n i e r C o n t r o l
( 1 0 )
f o r a S I N A D i n d i c a t i o n o n t h e M O D U L A T I O N M e t e r ( 1 ) e q u a l
t o t h e
" X X D B "
l e v e l d i s p l a y e d o n t h e V F D .
1
-
l ~ - T h 1 1 7 T I
I
V
I
~
II
A
V V V
A A

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