:DIFF:THReshold:RFALl:BASE

:DIFF Threshold Commands

Command Syntax

:DIFFN:THReshold:RFALl:BASE <amplitude>

<amplitude> is a double.

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:THReshold:RFALl:BASE?

Description

For the indicated differential waveform, sets or queries the Rise/Fall threshold's custom base-level setting. The top and base levels are used to locate a waveform's lower and upper threshold levels for the rise time, fall time, and slew rate measurements. Specify the level in volts. Use :DIFF:THReshold:RFALl:TOP to set or query a custom top level.

Before this user-defined base level can be applied to measurements, use the :DIFF:TBASe:RFALl:METHod command to select user-defined top-base definitions.

Example Command Sequence

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