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Command Descriptions

2−166

TDS200/1000/2000 Series Oscilloscope Programmer Manual

WFMPre:WFId?

For a YT waveform, this might return

:WFMPRE:WFID Ch1, DC coupling, 1.0E0 V/div, 5.0E−4

s/div, 2500 points, Sample mode"

For a Math waveform, this might return

:WFMPRE:WFID Math, DC coupling, 1.0E0 V/div, 5.0E−4

s/div, 2500 points, Sample mode"

(For an FFT spectrum (TDS1000 and TDS2000 series, or TDS200

series with a TDS2MM measurement module), this might return

:WFMPRE:WFID Math, DC coupling, 1.0E1 dB/div,

2.52525253E4 Hz/div, 1024 points, Sample mode"

WFMPre:XINcr

The set form of this command specifies the interval (seconds per

point for non-FFT, Hertz per point for FFT) between samples of the

reference waveform specified by the DATa:DESTination command.

The oscilloscope uses this value to calculate the seconds/division or

Hertz/division units shown in the status bar and cursor readouts when

displaying a reference waveform.

The query form returns the interval between samples of the

waveform specified by the DATa:SOUrce command, if that

waveform is active or displayed. If that waveform is inactive or

displayed, the query fails and the oscilloscope generates an

execution error with event code 2244 (waveform requested is not

active).

NOTE. For waveform records acquired in Peak Detect mode, even

though there is a pair of samples for each conceptual time period,

the XINcr is such that (XINcr * recl) = the total time over which the

data was collected.

Waveform

Examples

Group

Tektronix TDS1012 Programmer's Manual

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