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Commands Listed in Alphabetical Order

Arguments

<NR3> isaﬂoati

ng point number that speciﬁes the threshold, in volts.

ECL speciﬁes a preset ECL high level of -1.3V.

TTL speciﬁes a preset TTL high level of 1.4V.

Examples

BUS:LOWERTHRESHOLD:CH1 TTL sets the CH1 lower threshold to 800mV.

BUS:LOWERTHRESHOLD:CH1? might return :BUS:LOWERTHRESHOLD:CH1

-800.0000E-3

indicatingtheCH1lowerthresholdis-800mV.

BUS:LOWerthreshold{:MATH|:MATH1}

This command speciﬁes the lower threshold for the math waveform. This will

apply to all search and trigger types that use the math waveform.

Group

Bus

Syntax

BUS:LOWerthreshold{:MATH|:MATH1} {<NR3>|ECL|TTL }

BUS:LOWerthreshold{:MATH|:MA

TH1}?

Related Commands

BUS:UPPerthreshold{:MATH|:MATH1}

Arguments

<NR3> is a ﬂoating point number that speciﬁes the lower threshold for the

reference waveform, in volts.

ECL – ECL (-1.3 volts). Note that this setting is constrained, depending upon the

vertical scale of the speciﬁed math waveform.

TTL – TTL (1.4 volts). Note that this setting is constrained, depending upon the

vertical scale of the speciﬁed math waveform.

Examples

BUS:LOWerthreshold:MATH TTL sets the lower threshold for the math

waveform to 1.4 volts.

BUS:LOWerthreshold:MATH? might return 0.0E+0, which is the default.

BUS:LOWerthreshold:REF<x>

This command sets the lower threshold for each reference waveform. This applies

to all search and trigger types that use that reference waveform.

Group

Bus

MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-205

Tektronix MDO4000B Series User Manual

Other manuals for Tektronix MDO4000B Series