Service Guide 5
U8001A/U8002A User’s and Service Guide 53
• Enable Auto- triggering
8 Allow the scope run for a few seconds to generate enough
measurement points.
9 Obtain the maximum peak- to- peak voltage measurement as
indicated in the scope. Divide this value by 10 to get the CV
peak- to- peak noise measurement. The result should not
exceed 12 mV
pp
.
10 Configure the RMS voltmeter as below:
• Set high pass filter to10 Hz
• AC coupling
11 Disconnect the oscilloscope and connect an RMS voltmeter in
its place. Do not disconnect the 50
Ω termination. Divide the
reading of the RMS voltmeter by 10. The result should not
exceed the RMS limits of 1 mV
RMS
.
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