aMeasuring Measurements can also be made on a waveform that is stored in aOtherSourcesWaveformMemoryorontheresultsofamathematicalcalculation,aeWaveformFunction.`e Press SHIFT entry key then the V P-P [1] entry key.At this time the measurement source prompt is c#(for channei number).è Rotate the knob slowly.The measurement source prompt cycles through m¥,f#, and c#.When m# is selected a waveformmemorynumbercanbeselectedas~~the measurement source, and when |f# is selected a waveform functionnumber can be selected as themeasurement source.ə Press SHIFT entry key.The measurement is cancelled.Making Automatic Measurements HP 54501A, HP 54502A and HP 54503A4-6 Getting Started Guide