# :NETWorks:TRACe:THReshold:GENeral:TOP

:NETWorks:TRACe Threshold Commands

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

## Command Syntax

    :NETWorks:TRACeN:THReshold:GENeral:TOP <amplitude>

<amplitude> is a double.

Where N identifies a specific trace and must be selected from 1 to 128 {1:128}.

## Query Syntax

    :NETWorks:TRACe{1:128}:THReshold:GENeral:TOP?

## Description

For the indicated S-parameter trace, sets or queries the General threshold's custom top-level setting. The top and base levels are used to locate a waveform's lower, middle, and upper threshold levels during measurements.

Specify the level in the units shown in the following table, depending on the waveform type.

Units Used for Displayed Content Window Graphs
Content Window Graphs | Y-Axis Units
--- | ---
S-Parameters
Freq-Mag | Decibels
Phase | Degrees
GrpDelay | Seconds

Use `:NETWorks:TRACe:THReshold:GENeral:BASE` to set or query a custom top level.

Before this custom top level can be applied to measurements, use the `:MEASure:TBASe:GENeral:METHod` command to select custom top-base definitions. On the front panel, you can choose Measure > Thresholds... and in the Thresholds tab, General subtab of the Configure Measurements dialog box, set the signal's Top-Base Definition.