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Vavg
measurement
Figure 3
13 For each of channel 1's vertical sensitivities in the DC Gain Test section
14 Repeat
15 Set the power supply voltage to +6 mV.
16 Move the BNC cable from the previously tested channel to the channel
Agilent 1000A Series Oscilloscopes Service Guide
Vavg Menu Item
of the
"Performance Test Record"
a For the positive (+) power supply setting:
i Record the DMM voltage reading as VDMM+.
ii Record the oscilloscope Vavg reading as VScope+.
b For the negative (- ) power supply setting:
i Record the DMM voltage reading as VDMM- .
ii Record the oscilloscope Vavg reading as VScope- .
c Calculate the DC Gain using the following expression and record this
value in the DC Gain Test section of the Performance Test Record:
V
out
-------------- - =
DCGain =
V
in
step 15
through
oscilloscope models or for channels 2, 3, and 4 on four- channel models.
you are currently testing.
on page 35:
V
– V
scope+
scope-
------------------------------------------- -
V
– V
DMM+
DMM-
step 23
for channel 2 on two- channel
Service
1
19
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