Kenwood AG-203, Инструкция по эксплуатации, Страница: 11 / 24

( 1 k H z ± 1 k H z x 1 % / V x I V =
1 k H z ± 1 k H z x 0 . 0 1 ) , v
t h e f r e q u e n c y c a n b e s y n c h r o n i z e d w i t h
1 k H z o f t h e i n p u t s i g n a l .
N o t e t h a t t o o high a s y n c h r o n i z i n g s i g n a l v o l t a g e w i l l
a f f e c t t h e a m p l i t u d e a n d d i s t o r t i o n f a c t o r , a n d c a r e m u s t
t h e r e f o r e be t a k e n w h e n t h e s i g n a l v o l t a g e is h i g h e r t h a n
3 V r m s . A l s o , n o t e t h a t i f t h e s y n c h r o n i z i n g s i g n a l is
l a r g e l y d e v i a t e d f r o m t h e f r e q u e n c y o f A G - 2 0 3 , t h e
s y n c h r o n i z a t i o n is p u l l e d o u t w h i c h a f f e c t s t h e d i s t o r -
t i o n f a c t o r . I t is t h e r e f o r e a d v i s a b l e t h a t t h e o s c i l l a t i n g
f r e q u e n c y b e f i r s t s y n c h r o n i z e d w i t h a l o w i n p u t signal
v o l t a g e (less t h a n 1 V r m s ) a n d t h e n t h e v o l t a g e be
i n c r e a s e d .
F i g . 3
1 1
Oscillatin
g
frequenc
y
deviatio
n
(%
)
Outpu
t leve
l (dB
)
Distortio
n
facto
r {%
)
S y n c h r o n i z i n g range
L x t e r n a l s y n c h r o n i z i n g
input v o l t a g e
, ( V r m s )
Output v o l t a g e v a r i a t i o n
E x t e r n a l s y n c h r o n i z i n g input v o l t a g e ( V r m s )
Output s i g n a l d i s t o r t i o n
E x t e r n a ! s y n c h r o n i z i n g input v o l t a g e ( V r m s )