prog.book : chapter1.fm 18 Mon Feb 15 09:24:37 1999
Power Meter Remote Operation
Making Measurements
1-18 HP E4418B/E4419B Programming Guide
Example 6 - Making a Ratio Measurement
The following command can only be carried out on the HP E4419B. 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.
Note HP E4419B only
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? etc).
This means that when the source list parameter is defaulted, there
are a number of possibilities.
Command Current Window Setup Measurement
MEAS1[:POW][AC]? Upper Window: A A
BB
Any Other A
MEAS2[:POW][AC]? Lower Window: A A
BB
Any Other B
MEAS1:POW:AC:RAT Upper Window: A/B A/B
B/A B/A
Any Other A/B
MEAS1:POW:AC:RAT? DEF,DEF,(@1),(@2)
specifies window
specifies the relationship of the
channels in the ratio
Channel A / B
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