# :CGMemory:THReshold:RFALl:TOP

:CGMemory Threshold Commands

- :CGMemory:TBASe:GENeral:METHod
- :CGMemory:TBASe:RFALl:METHod
- :CGMemory:THReshold:GENeral:AUTO
- :CGMemory:THReshold:GENeral:BASE
- :CGMemory:THReshold:GENeral:HYSTeresis
- :CGMemory:THReshold:GENeral:LOWer
- :CGMemory:THReshold:GENeral:METHod
- :CGMemory:THReshold:GENeral:MIDDle
- :CGMemory:THReshold:GENeral:PLOWer
- :CGMemory:THReshold:GENeral:PMIDdle
- :CGMemory:THReshold:GENeral:PUPPer
- :CGMemory:THReshold:GENeral:STZero
- :CGMemory:THReshold:GENeral:TOP
- :CGMemory:THReshold:GENeral:TRACking
- :CGMemory:THReshold:GENeral:UPPer
- :CGMemory:THReshold:RFALl:BASE
- :CGMemory:THReshold:RFALl:LOWer
- :CGMemory:THReshold:RFALl:METHod
- :CGMemory:THReshold:RFALl:PLOWer
- :CGMemory:THReshold:RFALl:PUPPer
- :CGMemory:THReshold:RFALl:TOP
- :CGMemory:THReshold:RFALl:TRACking
- :CGMemory:THReshold:RFALl:UPPer

## Command Syntax

    :CGMemoryN:THReshold:RFALl:TOP <amplitude>

<amplitude> is a double.

Where N identifies one of eight color grade memories. For example, the color grade memory 2 would be identified as :CGMemory2.

## Query Syntax

    :CGMemoryN:THReshold:RFALl:TOP?

## Description

For the indicated color grade memory, sets or queries the custom top-level setting. The top and base levels are used to locate a waveform's lower and upper threshold levels for rise time, fall time, and slew rate measurements. Specify the level in volts or Watts depending on the waveform type. Use `:CGMemory:THReshold:RFALl:BASE` to set or query a custom base level.

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

## Example Command Sequence

    :CGMemory1:THReshold:RFALl:TRACking OFF
    :CGMemory1:TBASe:RFALl:METHod ABSolute
    :CGMemory1:THReshold:RFALl:BASE -125E-3
    :CGMemory1:THReshold:RFALl:TOP 125E-3