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:MEASure Commands 22

Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide 459

If a measurement cannot be made (typically because the proper portion of the

waveform is not displayed), the value +9.9E+37 is returned for that measurement.

Making Measurements

If more than one waveform, edge, or pulse is displayed, time measurements are

made on the portion of the displayed waveform closest to the trigger reference

(left, center, or right).

When making measurements in the zoomed (delayed) time base mode

(:TIMebase:MODE WINDow), the oscilloscope will attempt to make the

measurement inside the zoomed sweep window. If the measurement is an average

and there are not three edges, the oscilloscope will revert to the mode of making

the measurement at the start of the main sweep.

When the command form is used, the measurement result is displayed on the

instrument. When the query form of these measurements is used, the

measurement is made one time, and the measurement result is returned over the

bus.

Measurements are made on the displayed waveforms specified by the

:MEASure:SOURce command. The MATH source is an alias for the FUNCtion

source.

Not all measurements are available on the digital channels or FFT (Fast Fourier

Transform).

Reporting the Setup

Use the :MEASure? query to obtain setup information for the MEASure subsystem.

(Currently, this is only :MEASure:SOURce.)

Return Format

The following is a sample response from the :MEASure? query. In this case, the

query was issued following a *RST command.

:MEAS:SOUR CHAN1,CHAN2;STAT ON

Keysight Technologies InfiniiVision 3000T X Series User Manual

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