# :MEASure:TBASe:RFALl:METHod

Threshold Definition Commands

- :MEASure:TBASe:GENeral:BASE
- :MEASure:TBASe:GENeral:METHod
- :MEASure:TBASe:GENeral:TOP
- :MEASure:TBASe:RFALl:BASE
- :MEASure:TBASe:RFALl:METHod
- :MEASure:TBASe:RFALl:TOP
- :MEASure:THReshold:EREFerence
- :MEASure:THReshold:GENeral:HYSTeresis
- :MEASure:THReshold:GENeral:LOWer
- :MEASure:THReshold:GENeral:METHod
- :MEASure:THReshold:GENeral:MIDDle
- :MEASure:THReshold:GENeral:PLOWer
- :MEASure:THReshold:GENeral:PMIDdle
- :MEASure:THReshold:GENeral:PUPPer
- :MEASure:THReshold:GENeral:UPPer
- :MEASure:THReshold:PAM:GENeral:HYSTeresis
- :MEASure:THReshold:PAM:GENeral:LMEThod
- :MEASure:THReshold:PAM:GENeral:METHod
- :MEASure:THReshold:PAM:GENeral:PAMLevel:LEVel{N}
- :MEASure:THReshold:PAM:GENeral:THResholds:EYE{N}
- :MEASure:THReshold:PAM:RFALl:LMEThod
- :MEASure:THReshold:PAM:RFALl:METHod
- :MEASure:THReshold:PAM:RFALl:PAMLevel:LEVel{N}
- :MEASure:THReshold:RFALl:LOWer
- :MEASure:THReshold:RFALl:METHod
- :MEASure:THReshold:RFALl:PLOWer
- :MEASure:THReshold:RFALl:PUPPer
- :MEASure:THReshold:RFALl:UPPer

## Command Syntax

    :MEASure:TBASe:RFALl:METHod  {AUTO | ABSolute}

## Query Syntax

    :MEASure:TBASe:RFALl:METHod?

## Description

Selects the method used to define the Rise/Fall threshold's global waveform top and base definitions. The command is equivalent to setting the global Top-Base Definition in the Thresholds > Rise/Fall 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 `:MEASure:TBASe:RFALl:TOP` and `:MEASure:TBASe:RFALl:BASE` commands to enter the global top and base levels depending on the waveform type.

## Example Command Sequence

    :MEASure:TBASe:RFALl:METHod ABSolute
    :MEASure:TBASe:RFALl:BASE -125E-3
    :MEASure:TBASe:RFALl:TOP 125E-3