:DIFF:UDEFined:TOP

Instrument:
DCA-X
DCA-M
Meas. mode:
Scope
Eye
Jitter
TDR
Flex Apps:
FlexDCA
FlexRT
Definition Commands

Command Syntax

:DIFFN:UDEFined:TOP <amplitude>

<amplitude> is a double.

Where N identifies the differential waveform, which must be selected from {1:8}{A|C}. For example, the differential waveform of channels 1A and 2A would be identified as :DIFF1A.

Query Syntax

:DIFFN:UDEFined:TOP?

Description

For the indicated channel, 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 :DIFF{1:4}: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
:DIFF3:UDEFined:BASe -125E-3
:DIFF3:UDEFined:TOP 125E-3