Commands Listed in Alphabetical Order
the factory def
ault string value of “None”, they become the attenuated units of
measurement for that channel. It is assumed that the probe connected to the
specified channel is of the correct type to receive the output of the user’s external
transducer or network.
Group
Vertical
Syntax
CH<x>:PROBEFunc:EXTUnits <str>
CH<x>:PROBEFunc:EXTUnits?
Related Commands
CH<x>:PRObe:UNIts?
Arguments
<str> can contain a string of up to eight characters to indicate the attenuation unit
of measurement for the specified channel. However, most instrument attenuators
only display the fi rst two characters.
Examples
CH4:PROBEFUNC:EXTUNITS "Pa" sets the unit of measurement for the Channel
4 external attenuator.
CH2:PROBEFUNC:EXTUNITS? might r eturn :CH2:PROBEFUNC:EXTU NITS
"Pa"
, indicating that the Channel 2 external attenuator units of measurement are
Pascals.
CH<x>:SCAle
This command sets or queries the vertical scale of the specified channel. The
channel is specified by x. The value of x can range from 1 through 4. Sending
this command is equivalent to selecting Vertical Setup from the Vertical menu
and then viewing or setting the Scale.
Each waveform has a vertical scale parameter. For a signal with constant
amplitude, increasing the Scale causes the waveform to be displayed smaller.
Decreasing the scale causes the waveform to be displayed larger.
Scale affects all waveforms, but affects channel waveforms differently from
other waveforms:
For channel waveforms, this setting controls the vertical size of the acquisition
window as well as the display scale. The range and resolution of scale
values depends on the probe attached and any other external factors you have
specified.
For reference and math waveforms, this setting controls the display only,
graphically scaling these waveforms and having no affect on the acquisition
hardware.
2-128 DPO7000, DPO70000/B and DSA7000/B Series Programmer Manual
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