Specifications

Command Descriptions
2- 324
TDS3000, TDS3000B, and TDS3000C Series Programmer Manual
WFMPre:YUNit
The set form of this command sets the vertical units for the reference waveform
specified by DATa:DESTination.
NOTE. It is possible to set a combination of WFMPre:XUNit and WFMPre:YU-
Nit that is inconsistent (for example, seconds with dB or Hertz with volts). The
oscilloscope will not warn you of this condition. The oscilloscope uses
WFMPre:XUNit to determine if the waveform is YT or FFT.
The query form returns the vertical units of the waveform specified by the
DATa:SOUrce command, if that waveform is on or displayed. If that waveform
is not on or displayed, the query fails and the oscilloscope generates an execution
error with event code 2244 (waveform requested is not on).
Waveform
WFMPre:YUNit <Qstring>
WFMPre:YUNit?
<qstring> is “V”, “VV”, “s”, “Hz”, “%”, “div”, “S/s”, “ohms”, “A”, “W”, “min”,
“degrees”, “?”, “AA”, “hr”, “day”, “dB”, “B”, “/Hz”, “IRE”, “V/V”, “V/A”, “VW”,
“V/W”, “VdB”, “V/dB”, “A/V”, “A/A”, “AW”, “A/W”, “AdB”, “A/dB”, “WV”,
“W/V”, “WA”, “W/A”, “WW”, “W/W”, “WdB”, “W/dB”, “dBV”, “dB/V”, “dBA”,
“dB/A”, “dBW”, “dB/W”, “dBdB”, or “dB/dB”
<qstring> shown above
WFMPre:YUNit “W”
wfmpre:yunit?
might return: WFMPRE:YUNIT ”dB”
WFMPre:YUNit, WFMPre:<wfm>:YUNit, WFMPre:YMUlt
Group
Syntax
Arguments
Returns
Examples
Related Commands