TDS5000B Online Programmer Guide
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MATH<x>:VERTical:SCAle
Description
This command sets or queries the vertical scale of the specified math
waveform. The Math waveform is specified by x, which ranges from 1
through 4 for four--channel instruments or 1 through 2 for two--channel
instruments. This command is equivalent to selecting Position/Scale
from the Math menu and then entering a Vert Scale value or adjusting
the front--panel Vertical SCALE knob.
Each waveform has its own vertical scale parameter. For a signal with
constant amplitude, increasing the scale causes the waveform to be dis-
played smaller. Decreasing the scale causes the waveform to be dis-
played larger.
Scale affects all waveforms. For reference and math waveforms, the
scale setting controls the display only, graphically scaling these wave-
forms and having no affect on the acquisition hardware.
Be aware that autoscaling occurs when a math waveform is first defined
and enabled, or when a math string changes. After the math waveform
is computed for the first time, the instrument determines the min + max
of that waveform data. Then, the instrument sets the math position so
that (min + max)/2 is in the center of the screen. In addition, the instru-
ment sets the math scale so that the range of the min and max covers 6
divisions. This autoscaling process can take up to 1/2 second to com-
plete and will override any vertical scale or position commands for that
math waveform received during this time. You should insert an ap-
propriate pause in your program after defining and enabling a math
waveform before changing its position or scale.
Group
Math, Vertical
Related Commands
CH<x>:SCAle, REF<x>:VERTical:SCAle
Syntax 1
MATH<x>:VERTical:SCAle <NR3>
Syntax 2
MATH<x>:VERTical:SCAle?
Argument
H <NR3>
This is the scale, in volts, amps or watts per division. The range is
from 100.0E--36 through 100.0E+36.