HP 37718A Installation And Verification Manual page 114

Performance Tests
External Mux/Demux
N OTE
It may be necessary to visibly fit the waveform to the mask by adjusting
the oscilloscope vertical position and horizontal delay to obtain a PASS on
the Mask.
12 Measure the peak pulse amplitude at the mid pulse-width using the
oscilloscope and verify that this is between 1.896V and 2.844V.
13 Disconnect all test equipment.
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