:FUNCtion:UDEFined:TOP

Instrument:
N1000A
N109x
UXR Scope
Flex Apps:
FlexDCA
FlexRT
Meas. mode:
Scope
Eye
Jitter
TDR
Package License:
L-RND
Measure Define Commands

Command Syntax

:FUNCtion{1:64}:UDEFined:TOP   <amplitude>

Where the {1:64} specifier identifies one of sixty four math functions that you can create. For example, :FUNCtion2.

Where <amplitude> is an double.

Query Syntax

:FUNCtion{1:64}:UDEFined:TOP?

Description

For the indicated function, sets or queries the custom top-level setting. The top and base levels are used to locate a waveform's lower, middle, and upper threshold levels during the following measurements: duty-cycle distortion, rise time and fall time. Specify the level in volts or Watts depending on the waveform type. Use :FUNCtion{1:16}:UDEFined:BASe to set or query a custom base level.

Before this custom top level can be applied to measurements, use the :MEASure:TBASe:METHod command to select custom top-base definitions.

Example Command Sequence

:MEASure:TBASe:METHod UDEFined
:FUNCtion3:UDEFined:BASe -125E-3
:FUNCtion3:UDEFined:TOP 125E-3