Tektronix DPO2000 Series Programmer's Manual

Command Groups
Math Command G
roup
Use the commands in the Math Command Group to create and define a math
waveform. Use the available math functions to define your math waveform.
The math waveform you create depe nds on sources listed in the math expression.
If you change these sources, the math waveform you previously defined will be
affected.
Math expressions can be simple without any mathematical computations. For
example: CH1, which specifies that a waveform shows the signal source of
Channel 1.
The acquisition of a live waveform can stop for several reasons: You can turn
off the channel, stop the waveform, or stop the trigger. When you turn off
the
channel, math continues and data is acquired but is not displayed. When you
stop either the waveform or the trigger, the math calculation stops, and the last
math calculation p erformed is displayed.
When a live waveform update or reference waveform is altered, math waveforms
containing those w aveforms as sources are also updated to reflect the changes.
Remember that sources must exist, but d o not need to be displayed, to be used in
and to update math waveforms.
Table 2-25: Math Commands
Command
Description
MATH[1]? Returns the definition of the math waveform
MATH[1]:DEF ine
Sets or returns the current math function as
atextstring
MATH[1]:HO Rizontal:POSition Sets or returns the math horizontal display
position for FFT or (non-live) math reference
waveforms
MATH[1]:HO Rizontal:SCA le Sets or returns the math horizontal display
scale for FFT or for Dual Math w aveform s
MATH[1]:HO Rizontal:UNIts Returns the math waveform horizontal unit
value
MATH[1]:LABel
Sets or queries the waveform label for the
math waveform
MATH[1]:SPECTral:GATing:INDICators Enables or disables the display of indicators
that show the portion of the source waveform
record used to compute the math FFT
waveform
MATH[1]:SPECTral:GATing:INDICators:
END?
Returns the ending point in the source
waveform record used for computing the FFT
MATH[1]:SPECTral:GATing:INDICators:
STARt?
Returns the starting point in the s ource
waveform record used for computing the FFT
MATH[1]:SPECTral:MAG Sets or returns the units of spectral
magnification in the math string
MSO2000B, DPO2000B, MSO2000 and DPO2000 Series Oscilloscopes Programmer Manual 2-25

Tektronix DPO2000 Series Specifications

General

Brand	Tektronix
Model	DPO2000 Series
Category	Test Equipment
Language	English