4-51
SECTION 4
OPERATION
4-2-10 AUDIO FREQUE NCY COUNTER
T h e A u d i o F r e q u e n c y C o u n t e r f o r t h e R F R e ce i v e r c o u n t s t h e a u d i o f r e q u e n c y w h e n
t h e r e c e i ve d R F Si g n a l i s m o d u la t in g . F i lt e r in g f o r t h e si g n a l p a s s e d t o t h e A u d i o
F r e q u e n c y C o u n t e r i s p r o v i d e d b y t h e A u d i o / D a t a F i l t e r s .
C o n f i g u r e a n d o p e r a t e t h e A u d i o F r e q u e n c y C o u n t e r
f o l l o w s :
ZOOM
D i s p l a y s f u l l s c r e e n A u d i o F r e q u e n c y C o u n t e r .
S e l e c t R a n g e a s f o l l o w s :
200 Hz
S e l e c t s 2 0 0 H z r a n g e .
2000 Hz
S e l e c t s 2 0 0 0 H z r a n g e .
20 kHz
S e l e c t s 2 0 k H z r a n g e .
AUTO
S e l e c t s A u t o r a n g e .
I f P e a k H o l d F u n c t i o n i s d e s i r e d , t a k e
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 .
RST PK
R e s e t s P e a k H o l d F u n c t i o n .
DEMOD
2000 Hz
ON
ON
OFF
1 S
Source:
Range:
Average:
Upper Limit:
Lower Limit:
Gate Time:
Alarm:
ON
Peak Hold:
ON
100 Hz
1900 Hz
2
Peak Hold:
Average:
ON
ON
2
Содержание COM-120C
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Страница 318: ...USER REPLACEABLE BATTERY AND FUSES BATTERY VOLTAGE FUSE INSTRUCTIONS ...
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