:DIFF:TBASe:GENeral:METHod

:DIFF Threshold Commands

Command Syntax

:DIFFN:TBASe:GENeral:METHod  {AUTO | ABSolute}

Where N identifies a specific differential waveform in the form "<connection1-8>_<ch1|ch3|ch5|ch7>". With connection 1, the connection number part (that is, "1_") is optional, and you can simply use the channel number "<ch1|ch3|ch5|ch7>". When two channels are paired to create a differential waveform and a common-mode waveform, the odd-numbered channel is used when specifying the waveform. For example, connection 5 differential waveform 3 (from the pairing of channels 3 and 4) is DIFF5_3.

Query Syntax

:DIFFN:TBASe:GENeral:METHod?

Description

MEASUREMENTS AFFECTED

Infiniium uses the top and base levels to locate a waveform's lower, middle, and upper percent threshold levels during certain measurements.

For the indicated differential waveform, selects the method used to define the waveform top and base definitions. The command is equivalent to setting the signal's Top-Base Definition in the Thresholds > General tab of the Configure Measurements dialog box.

AUTO
Specifies that the top (100%) and base (0%) levels be automatically determined using a histogram of the signal's amplitude values. This is the default setting.
ABSolute
Allows you to enter absolute values for the top-base levels. When ABSolute is selected, use the :DIFF:THReshold:GENeral:TOP and :DIFF:THReshold:GENeral:BASE commands to enter the signal's top and base levels.

Example Command Sequence

:DIFF3_1:THReshold:GENeral:TRACking OFF
:DIFF3_1:TBASe:GENeral:METHod ABSolute
:DIFF3_1:THReshold:GENeral:BASE -125E-3
:DIFF3_1:THReshold:GENeral:TOP 125E-3