3-14
SECTION 3
COMPOSITE
3-3-8
RF RECEIVE SCREEN
T h e R F R e c e i v e O p e r a t i o n S c r e e n i s u s e d t o d e f i n e a n d a c t i v a t e t h e C O M - 1 2 0
C
R F
R e c e i v e r a n d i s a c c e s s e d b y p r e s s i n g t h e R E C T e s t M o d e K e y .
T h e R F R e c e i v e O p e r a t i o n S c r e e n d i s p l a y s i n t h e c o n f i g u r a t i o n l a s t u s e d .
1 . H e a d e r B a r
D i s p l a y s c u r r e n t o p e r a t i o n
m o d e .
2 . R F F ie l d
D is p l a y s c u r r e n t R F
R e c e i v e F r e q u e n c y .
R a n g e i s f r o m 0 . 0 0 0 0 t o
1 0 0 0 . 0 0 0 0 M H z .
S c a n F u n c t i o n s e a r c h e s a
s p e c i f i e d F r e q u e n c y L i s t
( 3 ) r a n g e , s t o p p i n g f o r a
s e l e c t e d t i m e p e r i o d o r
w h e n s q u e l c h i s b r o k e n .
S w e e p F u n c t i o n s w e e p s a
s e t r a n g e o f f r e q u e n c i e s ,
i n c r e a s i n g o r d e c r e a s i n g
f r e q u e n c y a t s e t r a t e a n d
s t o p p i n g f o r a s e t t i m e o r w h e n s q u e l c h i s b r o k e n .
∆
F u n c t i o n a l l o w s c h a n g e o f f r e q u e n c y i n s e l e c t e d i n c r e m e n t (
∆
) .
3 . F L ( F r e q u e n c y L i s t ) S e t t i n g
D i s p l a y s s e l e c t e d F r e q u e n c y L i s t n u m b e r ( F L - 0 0 t h r o u g h F L - 9 9 ) w h e n a c t i v e a n d
O F F w h e n i n a c t i v e . R F F ie l d ( 2 ) e c h o e s f r e q u e n c y o f s e l e c t e d F r e q u e n c y L i s t
s e t t i n g . D i r e c t l y e d i t i n g R F F ie l d ( 2 ) i n a c t i v a t e s F L S e t t i n g . D i s p l a y s o p t i o n a l
F r e q u e n c y L i s t L a b e l i f u s e d .
4 . I n p u t C o n n e c t o r
D i s p l a y s c o n n e c t o r s e l e c t e d f o r i n p u t . D i s p l a y s e i t h e r T / R o r A N T .
5 . D e m o d u l a t i o n T yp e
D i s p l a y s s e l e c t e d D e m o d u l a t i o n T yp e . S e l e c t i o n s i n c l u d e F M , A M o r P M .
6 . A t t e n u a t i o n
D i s p l a y s s e l e c t e d a t t e n u a t i o n o f i n p u t s i g n a l . D i s p l a y s e i t h e r 0 o r 3 0 .
DISTORTION:
%
AF FREQUENCY:
0
RECEIVE
00607009
RF:
FL:
Input:
Demod:
AF GEN OUT
LINE:
HPF:
BPF:
Tone/Data Code:
OFF
OFF
OFF
MOD MTR
FM IF BW: 15 kHz
ANT Atten: 0 dB
OFF
105.0000 MHz
+++
Hz
-100
RF ERROR
REC LEVEL
DEVIATION
- 0.034 kHz
104.999966 MHz
100
-25
-120
- 39.1 dBm
2
0
- 0.05 kHz
POCSAG
LPF: 20kHz
-120
-110
-100
-90
-80
-70
-60
-50
-40
dBm
ANALYZER
1 MHz
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
19
17
R F R e c e i v e S c r e e n
Содержание COM-120C
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Страница 290: ...6 115 SECTION 6 OPTIONS 1 Monitor Filter Softkeys See Appendix D 2 Radio Monitor Softkeys See Appendix D ...
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Страница 318: ...USER REPLACEABLE BATTERY AND FUSES BATTERY VOLTAGE FUSE INSTRUCTIONS ...
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