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Page Title:
Video Enable Delay and Period Test-CONT. |
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 I
Control settings
Performance standard
Test procedure
Equipment under test
Step
Test equipment
2
b. Note that start of video enable
b. None.
(Cont)
period pulse on B INPUT is coincident
with the trailing edge of the video
enable delay pulse on A INPUT.
MAIN
c. None.
c. Set
TIME/DIV to 10 SEC.
Observe the complete video
enable period pulse.
d. Disconnect A INPUT from
d.None.
A 1 0 T P 6 and connect to
AN/TPM-25A REPLY VID
OUT.
e. Observe position of trailing edge
e. The video enable period will
of last reply pulse on A INPUT
after
conclude within 6
with respect to trailing edge of
the trail-edge of the last
video enable period pulse on B
reply pulse.
INPUT.
f. None.
f. S e t t e s t s e t FUNCTION
switch IP and MODE switch
to 1.
g. Same as e above.
g. Set AN/TPM-25A REPLIES
FUNCTION SEL switch to I/P
Ml. Repeat procedure in e above.
h. Set test set MODE switch to 2.
h. None.
i. Set AN/TPM-25A REPLIES
i. Same as e above.
MODULATION SEL switch to
I/P M2/3. Repeat procedures in e
above.
j. S e t t e s t s e t FUNCTION
j. None.
switch to EMER.
k. Set AN/TPM-25A REPLIES
k. None.
MODULATION SEL switch to
EMERG.
l. S e t
MAIN
l. Same as e above.
TIME/DIV to 10 SEC and
repeat procedure in e. above.
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