5 - 2
SECTION 5
COMMON PRACTICES
5-1-1
GENERATING FM MODULATED 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
F M M o d u l a t e d R F S i g n a l a t t h e T / R C o n n e c t o r .
The audio portion of the signal is a 1 kHz sine wave from Audio Generator 1.
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 .
P
R
E
P
T h e s p e a k e r i s c o n f i g u r e d t o p l a y t h e i n t e r n a l m o d u l a t e d s i g n a l .
ο
S e t R F F i e l d t o R c v r C e n t e r F r e q u e n c y .
ο
S e t O u t p u t L e v e l t o - 5 0 d B m .
ο
S e t O u t p u t t o T / R .
ο
S e l e c t A u d i o G e n e r a t o r 1 ( G EN 1 ) f o r M o d u l a t i o n S o u r c e .
ο
S e t M o d u l a t i o n T yp e t o F M .
ο
S e t D e v i a t i o n L e v e l t o 5 . 0 0 k H z.
ο
S e t F o r m a t t o T O N E .
ο
S e t T o n e F r e q t o 1 0 0 0 . 0 H z.
ο
S e t S h a p e t o S I N E.
ο
A c c e s s F i l t e r s S e t u p M e n u .
ο
S e t S p e a k e r / H e a d p h o n e s F ie l d t o I N T - M O D .
ο
R e t u r n t o 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 .
ο
S e t V O L U M E C o n t r o l f o r d e s i r e d a u d i o l e v e l .
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 318: ...USER REPLACEABLE BATTERY AND FUSES BATTERY VOLTAGE FUSE INSTRUCTIONS ...