Signal Generator - Aeroflex TCAS-201-2 Maintenance Manual

Ramp test set
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S T E P
3 7 . V e r i f y S t e p 3 6 va l u e / S t e p 4 va l u e r a t i o i s 9 0 % ( ± 1 % ) .
3 8 . P r e s s R U N / S T O P K e y t o t e r m i n a t e t e s t .
3 9 . D i s c o n n e c t t e s t e q u i p m e n t .
4 0 . C o n n e ct t e st e q u i p m e n t a cco r d i n g t o 2 - 2 - 2 , F i g u r e 2 2 w i t h A T C - 6 0 1 - 2 A N T E N N A
4 1 . S e t R F S i g n a l G e n e r a t o r f o r 1 0 3 0 M H z.
4 2 . R u n A T C - 6 0 1 - 2 D i a g n o st i cs a s f o l l o w s:
4 3 . P o s i t i o n O s c i l l o s c o p e l e a d i n g d e l a y c u r s o r o n r i s i n g e d g e o f P
4 4 . U s e d e l a y t i m e a n d p o s i t i o n P
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R A N G E D E L A Y
C o n n e ct o r i n i t i a l l y co n n e ct e d t o H e t e r o d yn e Mo n i t o r R F i n p u t .
SCOPE
CHAN 1
TRIG
50
INPUT
IF
HETERODYNE
MONITOR
LO
RF
RF
SIGNAL
GENERATOR
F I E L D
S I G N A L T Y P E :
A T T E N U A T I O N :
P R F :
r e f e r e n ce .
MAINTENANCE MANUAL
TCAS- 201-2
P R O C E D U R E
ANT
ATC-601-2
10 dB
COUPLER
R a n g e D e l a y T e st S e t u p D i a g r a m
F i g u r e 2 2
r i s i n g e d g e a c r o s s 0 , 0 p o i n t o n O s c i l l o sc o p e f o r
3
SYNC
ANT
TCAS-201-2
8506009
S E T T I N G
I T M _ A T C _ C
0 0
2 3 5
i n i n t e r r o g a t i o n .
3
P a g e 1 3
S e p 1 / 0 4
2 - 2 - 2

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