Agilent Technologies 54501A Dokumentacja Strona 60

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hp
runn
ing
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rePet
I
t i
ve
HP
54510A
Front-Panel
Relerence
Figure
64.
Two-Bunt
Pulse
wlStable
Tiger
The input
signal to the oscilloscope has
two
500
ns
pulses.
On
the
lirst
risrng
edge a trigger occurs and
activates the holdofftimer.
When
the
holdofftine
(1.0a000ps)
has
elapsed,
the oscilloscope
lools
for
another
trigger. The
oscilloscope
triggers
on the frst rising
edge
of
the
second
burst. Each
tiger
event occurs
on a different
pulse,
and is
consequently
al unstable condition.
By
adjusting
holdoffto wait
until the rising
edge
of the
second
pulse
passes,
the oscilloscope triggers only
on the fust rising
edge
and the
signal
is
stable.
In
this case the trigger is
stable
with
approximately
t.Mps holdoff.
Trigger
Menu
67
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