TDS5000B Online Programmer Guide
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MATH<x>:SPECTral:MAG Sets or returns the units of the SpectralMag
function in the specified math string
MATH<x>:SPECTral:PHASE Sets or returns the units of the SpectralPhase
function in the specified math string
MATH<x>:SPECTral:REFLevel Sets or returns the vertical position of the out-
put data from the spectral analyzer
MATH<x>:SPECTral
:REFLEVELOffset
Sets or returns the spectral reference level
offset used for calculating the dB value
MATH<x>:SPECTral:RESBw Sets or returns the resolution bandwidth of the
spectral analyzer
MATH<x>:SPECTral:SPAN Sets the top of the span to a value that is clos-
est to the specified value
Or returns the specified math waveform’s cur-
rent span value
MATH<x>:SPECTral:SUPPress Sets or returns the phase suppression thresh-
old
MATH<x>:SPECTral:UNWRap Enables or disables or returns the state of the
phase unwrap of the spectral analyzer output
data
MATH<x>:SPECTral:WINdow Sets or returns the window function used to
multiply the input data to the spectral analyzer
MATH<x>:UNITString Sets or returns the units used for the math wa-
veform; command overrides the default unit
string
MATH<x>:VERTical:POSition Sets or returns the specified math waveform
vertical position
MATH<x>:VERTical:SCAle Sets or returns the specified math waveform
vertical scale (per div)
MATHVAR:VAR<x> Sets or returns numerical values you can use
within math expressions
Measurement Command Group
Use the commands in the Measurement Command Group to control the
automated measurement system.
Up to eight automated measurements can be displayed on the screen. In
the commands, these measurement readouts are named MEAS<x>,
where <x> can be 1 through 8.
In addition to the eight displayed measurements, the measurement com-
mands let you specify an additional measurement, IMMed. The imme-
diate measurement has no front --panel equivalent. Immediate measure-
ments are never displayed. Because they are computed only when
needed, immediate measurements slow the waveform update rate less
than displayed measurements.
Whether you use displayed or immediate measurements, use the VAL-
ue? query to obtain measurement results.
Measurement commands can set and query measurement parameters.
You can assign some parameters, such as waveform sources, differently
for each measurement. Other parameters, such as reference levels, have
only one value, which applies to all measurements.
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