Kenwood AG-203 Instruction Manual page 14

1 . C o n n e c t A G - 2 0 3 , a n a m p l i f i e r to b e tested and an
o s c i l l o s c o p e as s h o w n in F i g . 7 .
2 . Press W A V E F O R M ( 5 ) t o t h e "_TL" p o s i t i o n to obtain
s q u a r e w a v e s o f a p p r o p r i a t e f r e q u e n c y a n d a m p l i t u d e .
3 . D u r i n g t h e t e s t , c h a n g e t h e f r e q u e n c y a s n e c e s s a r y .
T h e r e l a t i o n s h i p b e t w e e n w a v e f o r m s a n d a m p l i f i e r
c h a r a c t e r i s t i c s is s h o w n in F i g . 8 .
1 4
A G - 2 0 3
O U T P U T
O u t p u t A m p l i f i e r
Waveform Characteristic
F l a t f r e q u e n c y
_n_n_
i s t i c o v e r 1 0 t i m e s t h e i n p u t
f r e q u e n c y .
F r e q u e n c y o f
A / \ .
t i m e s t h e i n p u t f r e q u e n c y is
c u t o f f .
F r e q u e n c y o f a b o u t 1 / 1 0 o f
t h e i n p u t f r e q u e n c y
o f f .
P e a k a p p e a r s o n f r e q u e n c y
of a b o u t 1 0 t i m e s t h e i n p u t
f r e q u e n c y .
F i g . 8
O s c i l l o s c o p e
A m p l i f i e r
under t e s t
F i g . 7
c h a r a c t e r -
a b o u t 1 0
^ ^ ^ ^ ^ ^ ^ ^
is c u t