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
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