:PNOise:SOURce:TWO

:PNOise Commands

Command Syntax

:PNOise:SOURce:TWO <source_waveform>

Where <source_waveform> can be one of the following:

  • CHANnel<connection1-8>_<ch1-8>; With connection 1, the "1_" part is optional, and you can simply use CHANnel<ch1-8>.
  • DIFF{1:4}
  • FUNCtion{1:64}
  • WMEMory{1:8}

Query Syntax

:PNOise:SOURce:TWO?

Description

When the selection of a second signal source is enabled (see :PNOise:SOURce:TWO:ENABled), this command selects the second signal source.

Select an analog input channel (or Magnify or Average math function).

Use the :PNOise:SOURce:ONE command to select the first signal source for the Phase Noise analysis.

The oscilloscope phase noise measurement floor is reduced by using two input channels. You can split a single-ended signal into two copies or you can use both polarities of a differential signal.

When using two input channels, use the :PNOise:CORRelations command to specify the number of correlations that will be accumulated between averages.