FEATURES
SPECIFICATIONS
* A c c u r a t e a t t e n u a t i o n over a w i d e range f r o m D C t o
1 M H z .
* M e t a l l i c f i l m resistors are used t h r o u g h o u t t h e c i r c u i t r y
t o p r o v i d e e x c e l l e n t t e m p e r a t u r e characteristic a n d ac-
c u r a t e a t t e n u a t i o n a c c u r a c y .
* A d o p t i o n o f phase c o m p e n s a t i o n e l i m i n a t e s phase devia-
t i o n in high f r e q u e n c i e s , p e r m i t t i n g a t t e n u a t i o n o f
pulse signals.
* Since t h e case is of t h e f l o a t i n g g r o u n d s y s t e m , t h e u n i t
can be r e a d i l y c o n n e c t e d t o an e l e c t r o n i c device having
a d i f f e r e n t case p o t e n t i a l . B y g r o u n d i n g t h e case, t h e
m e a s u r e m e n t accuracy is f u r t h e r i m p r o v e d .
* R o t a r y s w i t c h e s are used f o r easy dial s e t t i n g .
3
F r e q u e n c y Range:
DC-1 M H z
A t t e n u a t i o n Range:
0 - 1 2 1 d B (0.1 d B step)
I n p u t / O u t p u t I m p e d a n c e :
6 0 0 o h m , ± 10 o h m
M a x i m u m I n p u t Level:
+ 2 7 d B m or 0 . 5 W or 1 7 V r m s
A t t e n u a t i o n A c c u r a c y ( l k H z ) :
Less t h a n ± 0 . 2 d B
Less t h a n ± 0 . 1 d B f o r 1 d B step range
Less t h a n ± 0 . 0 1 d B f o r 0.1 d B step range
F r e q u e n c y Characteristic (reference f r e q . 1 k H z )
D C - 8 0 k H z : ± 0 . 2 d B ( 0 - 1 2 1 d B )
D C - 1 0 0 k H z : ± 0 . 2 d B ( 0 - 1 0 0 d B )
D C - 1 5 0 k H z : ± 0 . 5 d B ( 0 - 1 0 0 d B )
D C - 1 5 0 k H z : ±1 d B ( 0 - 1 2 1 d B )
DC-1 M H z : ± 1 . 5 d B ( 0 - 6 0 d B )
M a x i m u m F l o a t i n g V o l t a g e :
( D C + A C p e a k ) : ± 6 0 0 V
A m b i e n t T e m p e r a t u r e :
2 3 ° C ± 1 0 ° C
O p e r a t i n g T e m p e r a t u r e :
0 ° C - 5 0 ° C
D i m e n s i o n s :
3 3 5 ( W ) x 8 7 ( D ) x 1 0 5 ( H ) m m
Weight:
2 kg
Accessories: I n s t r u c t i o n
m a n u a l 1
S h o r t i n g
bar 1
Cover ( o p t i o n ) S t a n d a r d
Accessory
f o r R A - 9 2 0 ( A )