Keysight x-series Programmer's Reference

9 Programming the Instrument
9.3 SCPI Operation and Results Query
MEAN
Returns a single value that is the arithmetic mean of the data point values
(indB/dBm) for the specified region(s) of trace data. For I/Q trace data, the mean of
the magnitudes of the I/Q pairs is returned. See the following equations.
NOTE
If the original trace data is in dB, this function returns the arithmetic mean of
those log values, not log of the mean power which is a more useful value. The
mean of the log is the better measurement technique when measuring CW
signals in the presence of noise. The mean of the power, expressed in dB, is
useful in power measurements such as Channel Power. To achieve the mean of
the power, use the RMS option.
Equation 1: Mean Value of Data Points for Specified Region(s)
where Xi is a data point value, and n is the number of data points in the specified
region(s).
Equation 2: Mean Value of I/Q Data Pairs for Specified Region(s)
where |Xi| is the magnitude of an I/Q pair, and n is the number of I/Q pairs in the
specified region(s).
DMEan
Returns a single value that is the mean power (indB/dBm) of the data point values
for the specified region(s) of trace data. See the following equation:
Equation 3: DMEan Value of Data Points for Specified Region(s)
RMS
Returns a single value that is the average power on a root-mean-squared voltage
scale (arithmetic rms) of the data point values for the specified region(s) of trace
2561 Vector Modulation Analyzer Mode User's &Programmer's Reference

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)