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Section
III
Figure 3-6
Model 1821A
Set
up
main sweep
as explained
in
Figure
3-2.
6.
Set
Sweep
Display
to
MAIN
and
adjust
DE-
1.
Set
Delayed
VERNIER
to
CAL.
LAY
(DIV)
to
intensify
second
point
of
inter-
2.
Turn
the
Delayed
sweep
on by
setting
Delay-
est B.
ed
TIME/DIV
ten
to
one-hundred times
fast-
,
,
er than
Main TIME/DIV.
,
3.
Set
Delayed Trigger Source
to
AUTO.
<
4.
Adjust
DELAY
(DIV)
to
intensify
first
point
|
*
-
of
interest, A,
on
waveform.
'
^
*
5.
Set
Sweep
Display
to
DELAYED
ana
adjust
DELAY
(DIV)
to set
A
on a referency (Typ-
ically
the
Y
axis).
Note
setting
of
DELAY
(DIV).
7.
Set
Sweep
Display
to
DELAYED
and
adjust
DE-
LAY
(DlV)toset
B
on
same
reference
line
as
A.
Calculate the difference
between
the setting
of
DE-
LAY
(DIV)
in
steps #5
and#7.
Multiply the
MAIN
TIME/DIV
setting
by
this
difference
to
obtain the
time between
the
two
points
A
and
B.
Figure
3-6.
Time
Differential
Measurements
3-6
02591-3
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