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Apply
sine
wave
signal
3
V p-p
of 75
MHz.
Adjust
PULSE Width
to
7.5 nsec for both
<
and
>,
and switch between WIDTH
<
and WIDTH
>.
Check:
-
Width
<
7.5 nsec
scope should trigger
-
Width
>
7.5 nsec
scope should NOT trigger
Set
the
sine wave generator
to
230 MHz. Adjust PULSE WIDTH
to
2.5
nsec
and switch between WIDTH
<
and WIDTH
>.
Check:
-
Width
<
2.5 nsec
scope should trigger
-
Width
>
2.5 nsec
scope should NOT trigger
Repeat
the
above
test for CH2.
12.2
Trigger on Interval Width
<
Set up the DSO:
Turn off all
the traces
except
CHI.
Set the trigger:
-
Smart /Complex Trigger
-
Trigger Type
-
Width Type
-
Source
-
Coupl
-
Slope
-
Level
-
Delay
Set the input of CHI:
-
Coupl
-
Gain
-
Var
-
Offset
ON
SINGLE SOURCE
INTERVAL WIDTH
CHI
AC
+
zero
20 %
Pretrigger
50 2
.5
V/div
Gain
1
zero
17
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