5 - 1 0
SECTION 5
COMMON PRACTICES
5-1-5
GENERATING DTMF CODED RF SIGNAL
T h i s p r o c e d u r e c o n f i g u r e s t h e R F G e n e r a t e O p e r a t i o n S c r e e n t o t r a n s m i t a n R F S i g n a l
F M M o d u l a t e d w i t h D T M F C o d e a t t h e T / R C o n n e c t o r .
T h e d e v i a t i o n i s s e t a t 5 k H z .
T h e O u t p u t L e v e l i s - 5 0 d B m .
T h e s i g n a l i s s e t t o r u n i n a c o n t i n u o u s l o o p .
P
R
E
P
o
S e t R F F i e l d t o
R c v r C e n t e r F re q u e n c y
.
o
S e t O u t p u t L e v e l t o
- 5 0 d B m
.
o
S e t O u t p u t t o
T / R
.
o
S e l e c t D T M F G e n e r a t o r 1 (
D T M F
) f o r M o d u l a t i o n S o u r c e .
o
S e t M o d u l a t i o n T yp e t o
F M
.
o
S e t D e v i a t i o n L e v e l t o
3 . 5 0 k H z
.
o
E n t e r d e s i r e d D T M F C o d e .
o
S e t M a r k T i m e t o
7 0 m s e c
.
o
S e t S p a c e T im e t o
7 0 m s e c
.
o
S e t P a u s e T im e t o
7 0 m s e c
.
o
C u r so r t o C o d e f i e l d .
o
Pr ess
F 2
C O N T
.
Summary of Contents for COM-120C
Page 1: ...comMQRPc c š ƒ o ƒ mƒ šƒ QPPRMPVPQMRpP advancing wireless test s m ...
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Page 45: ...2 4 SECTION 2 INSTALLATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 145: ...4 72 SECTION 4 OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
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Page 318: ...USER REPLACEABLE BATTERY AND FUSES BATTERY VOLTAGE FUSE INSTRUCTIONS ...