:MEASure:THReshold:DISTal

Meas. mode:

Scope

Eye

TDR

Flex Apps:

FlexDCA

FlexRT

Command Syntax

:MEASure:THReshold:DISTal  <amplitude>

<amplitude> is a double.

Query Syntax

:MEASure:THReshold:DISTal?

Description

Sets or queries the upper threshold-definition level. This value is used when making certain measurements with custom threshold definitions based on percent. When custom threshold definitions are based on absolute amplitude, use the :CHANnel, :EMEMory, :FUNCtion, or :WMEMory command refered to in :MEASure:THReshold:METHod. This command is equivalent to the settings in the Thresholds tab of the Configure Measurements dialog.

Use the :MEASure:THReshold:METHod command to use custom threshold definitions. Use the :MEASure:THReshold:UNITs command to select levels based on voltage or percentages.

Use the :MEASure:THReshold:MESial command to enter a middle threshold level. Use the :MEASure:THReshold:PROXimal command to enter a lower threshold level.

Measurements Affected by `:MEASure:THReshold` Commands
Instrument Mode
Oscilloscope	Eye	TDR/TDT
Average	Duty Cycle Distortion	Average
Duty Cycle	Fall Time	Fall Time
Fall Time	Rise Time	Rise Time
Rise Time		Δ Time
Frequency		Time at Edge
Preshoot		Time at Amplitude
Oversoot
Period
+ Pulse Width
— Pulse Width
Δ Time
Time at Edge
Time at Amplitude
RMS
Amplitude at Upper
Amplitude at Middle
Amplitude at Lower
OMA
Phase
Jitter

Common Numerical Child Commands

This command supports the use of the following common numerical child commands: :DEFault, :MAXimum, :MINimum, and :STEP.

Custom Upper Threshold Limits (Distal)
Threshold	Approximate Limits
	%	Units
	%	Volts (electrical)	Watts (optical)
Maximum	125%	429 mV	676 μW
Default^*	90%	0V	200 μW
Minimum^*	–25%	–429 mV	–175 μW
*. Limited by middle threshold's setting.

Example Command Sequence

:MEASure:THReshold:METHod UDEFined
:MEASure:THReshold:UNITs PERCent
:MEASure:THReshold:DISTal 9.50E+1
:MEASure:THReshold:MESial 5.0E+1
:MEASure:THReshold:PROXimal 1.50E+1