Commands Listed in Alphabetical Order
Arguments
ON enables phas
eunwrap.
OFF disables phase wrap.
<NR1> = 0 disables phase wrap; any other value enables phase wrap.
Examples
MATH1:SPECTRAL:UNWRAP ON enables phase wrap of the spectral analyzer
output data.
MATH1:SPECTRAL:UNWRAP? might return :MATH1:SPEC TRAL:UNWRAP 0,
indicating that the phase unwrap of the spectral analyzer output data is disabled.
MATH<x>:SPECTral:WINdow
This command sets or returns the window function used to multiply the spectral
analyzer input data for the specified math waveform. The Math waveform is
specified by x, which ranges from 1 through 4. A spectral window determines
what the filter shape of the spectral analyzer will be in the frequen
cy domain. It
can be described by a mathematical function that is multiplied point-by-point times
the input data to the s pectral analyzer. This command is equal to selecting Spectral
Setup from the Math menu, and choosing from the Window Type drop-down list.
Following is a list of arguments that specify the window function used to multiply
the spectral analyzer input data. The w indows are listed in the order of their
ability to resolve frequencies (resolution bandwidth). For additional information
about spectral windows, see Selecting a Spectral Window in the online h elp for
this instrument.
Group
Math
Syntax
MATH<x>:SPECTral:WINdow {RECTANGular|
HAMMing|HANNing|KAISERBess el|B
LACKMANHarris|
FLATTOP2|GAUSSian|TEKEXPon ential}
MATH<x>:SPECTral:WINdow?
Related Commands
MATH<x>:SPECTral:RESBw
Arguments
RECTANGular window function is equivalent to multiplying all gate data by one.
HAMMing window function is based on a c osine series.
HANNing window function is based on a c osine series.
KAISERBessel window function is based on a cosine series.
BLACKMANHarris window function is based on a cosine series.
DPO7000, DPO70000/B and DSA7000/B Series Programmer Manual 2-359
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