Measure Subsystem - Anritsu Spectrum Master User Manual

SCPI SPA Commands
8-9

MEASure Subsystem

These commands take the instrument from its current state, enable the specified measurement and put the
instrument into single sweep mode. They correct any parameters that are invalid given the new measurement
state such that a valid measurement can take place. Other settings may be changed; see the documentation of
CONFigure for each measurement. They then initiate the measurement. When the measurement is complete,
they return the result.
To make a measurement with settings other than the "default" measurement settings applied by CONFigure,
do the following:
• Send the appropriate CONFigure command to set the desired measurement.
• Modify the settings as required.
• Send the appropriate READ command to measure and return the result.
To get the current measurement data, use the appropriate FETCh command.
:MEASure:ACPower?
Title: Measure Adjacent Channel Power Ratio
Description: Sets the active measurement to adjacent channel power ratio, sets the default
measurement parameters, triggers a new measurement and returns the main channel
power, lower adjacent, upper adjacent, lower alternate and upper alternate channel
power results. It is a combination of the commands :CONFigure:ACPower;
:READ:ACPower? For a description of the default adjacent channel power ratio
measurement parameters see :CONFigure:ACPower. To make an adjacent channel
power ratio measurement with settings other than the default values send:
:CONFigure:ACPower Commands to set desired settings :READ:ACPower?
Data is returned as 9 comma-separated values: main channel power, absolute lower
adjacent channel power, absolute upper adjacent channel power, absolute lower alternate
channel power, absolute upper alternate channel power, relative lower adjacent channel
power, relative upper adjacent channel power, relative lower alternate channel power,
relative upper alternate channel power.
Parameter(s): none
:MEASure:CHPower?
Title: Measure Channel Power And Density
Description: Sets the active measurement to channel power, sets the default measurement
parameters, triggers a new measurement and returns the channel power and channel
power density results. It is a combination of the commands :CONFigure:CHPower;
:READ:CHPower? For a description of the default channel power measurement
parameters see :CONFigure:CHPower. To make a channel power measurement with
settings other than the default values send: :CONFigure:CHPower Commands to set
desired settings :READ:CHPower? Data is returned as 2 comma-separated values:
channel power, channel power density.
Parameter(s): none
MS2760A UG PN: 10580-00427 Rev. C
8-9 MEASure Subsystem
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