Audio Frequency Level Meter Operation - IFR COM-120C Operation Manual

Communications service monitor
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SECTION 4
OPERATION
4-1-4

AUDIO FREQUENCY LEVEL METER OPERATION

Th e A ud i o Fr e q ue n c y L e v el Me te r for t h e R F G e n er a t e me a s ur e s the l e v el of a n a ud i o
s i gn a l p a s se d t hr o u gh t h e A UD IO / D AT A IN Co n n e c tor .
Vr m s, d B m ( r e f er e n c ed t o I mp e da n c e [ 16 ]) or d B a s se l e ct e d.
C o n f i g u r e a n d o p e r a t e t h e A F L e v e l M e t e r a s f o l l o w s:
ZOOM
D i sp l a y s f u l l s c r e e n A F L e v e l M e t e r .
I f m e a su r i n g V r m s, se l e c t d e si r e d R a n g e :
MENU
D i s p l a y s R a n g e s e l e ct i o n s i n c l u d i n g A u t o r a n g e .
I f P e a k H o l d F u n ct i o n i s d e si r e d , t a ke
m e t e r o u t o f A u t o r a n g e a n d c o n f i g u r e a s
f o l l o w s:
OFF/ON
T o g g l e s P e a k H o l d F u n c t i o n O N o r O F F .
D i s p l a y s P e a k H i g h a n d P e a k L o w d i g i t a l
r e a d o u t w h e n O N .
RST PK
R e s e t s P e a k H o l d F u n c t i o n .
I f A v e r a g e F u n c t i o n i s d e s i r e d , c o n f i g u r e
a s f o l l o w s:
OFF/ON
T o g g l e s A ve r a g e F u n ct i o n O N o r O F F .
C u r s o r t o S a m p l e N u m b e r t o e n t e r
d e si r e d v a l u e . R a n g e i s 2 t o 1 0 .
e
S e l e c t i n g u n i t s o f d B m o r d B se t s R a n g e t o A U T O ( A u t o r a n g e ) .
Me a s ur e m en t s m a de ar e i n
Peak Hold:
Average:
Peak High:
Peak Low:
Average:
Upper Limit:
4-18
AF LEVEL
0.02 Vrms
0
0.05
ON
ON
2
1.92V
0.47V
ON
2
ON
1.50V

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