Keysight Technologies EPM-P Series Programming Manual page 35

specifies window
Example 6 - Making a ratio measurement
The following command can only be carried out on the E4417A. It queries the
upper window to make a ratio measurement of channel A/B. The expected power
and resolution parameters are defaulted, leaving them at their current settings.
specifies window
E4417A only.
NOTE
The operation of the MEASure? command when the source list parameter is
defaulted depends on the current setup of the window concerned (for example, A,
B, A/B, A-B etc.) and on the particular command used (for example,
MEAS[:POW][:AC]? and MEAS:POW:AC:RAT?).
This means that when the source list parameter is defaulted, there are a number
of possibilities.
Keysight EPM-P Series Programming Guide
MEAS2:POW:AC:DIFF? DEF,DEF,(@2),(@1)
MEAS1:POW:AC:RAT? DEF,DEF,(@2),(@1)
Power Meter Remote Operation
specifies between which channels
the difference is calculated
Channel B - A
specifies the relationship of the
channels in the ratio
Channel A/B
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