:MEASure:THReshold:UNITs

Meas. mode:

Scope

Eye

TDR

Flex Apps:

FlexDCA

FlexRT

Measurements Affected

FlexDCA uses the threshold definitions during these measurements:

Oscilloscope Mode:

Average
Duty Cycle
Fall Time
Frequency
Preshoot
Overshoot
Period
+ Pulse Width
− Pulse Width
Rise Time
Δ Time
Time at Edge
Time at Amplitude
RMS
Amplitude at Lower
Amplitude at Middle
Amplitude at Lower
Optical Modulation Amplitude
Jitter

Eye/Mask Mode:

Duty Cycle Distortion
Rise Time
Fall Time

TDR/TDT Mode:

Rise Time
Fall Time

Command Syntax

:MEASure:THReshold:UNITs  {PERCent | UNITs}

Query Syntax

:MEASure:THReshold:UNITs?

Description

Selects custom threshold definition levels based on percentages (PERCent argument) or absolute amplitudes (UNITs argument). To apply these definitions to measurements, custom threshold definitions must first be selected using the :MEASure:THReshold:METHod command. Depending on the argument, use the commands listed in the following table to set the actual levels.

Commands to Enter Custom Threshold Levels
Level	Levels Based On
Level	Percentage	Unit Amplitude
Upper Level	:MEASure:THReshold:DISTal	:CHANnel{N}:UDEFined:DISTal :EMEMory{1:8}:UDEFined:DISTal :WMEMory{1:8}:UDEFined:DISTal :FUNCtion{1:16}:UDEFined:DISTal
Middle Level	:MEASure:THReshold:MESial	:CHANnel{N}:UDEFined:MESial :EMEMory{1:8}:UDEFined:MESial :WMEMory{1:8}:UDEFined:MESial :FUNCtion{1:16}:UDEFined:MESial
Lower Level	:MEASure:THReshold:PROXimal	:CHANnel{N}:UDEFined:PROXimal :EMEMory{1:8}:UDEFined:PROXimal :WMEMory{1:8}:UDEFined:PROXimal :FUNCtion{1:16}:UDEFined:PROXimal

Example Command Sequence

:MEASure:THReshold:METHod UDEFined
:MEASure:THReshold:UNITs UNITs
:EMEMory2:UDEFined:DISTal 125E-3
:EMEMory2:UDEFined:MESial 0E0
:EMEMory2:UDEFined:PROXimal -125E-3