1 Power Meter Remote Operation
64 Keysight N8262A Programming Guide
Example 4 - Specifying the Resolution Parameter
The previous examples detailed the use of the expected value and source list
parameters. The resolution parameter is used to set the resolution of the specified
window. This parameter does not affect the resolution of the data, however it does
affect the auto averaging setting (refer to Figure 1-2).
Since the filter length used for a channel with auto-averaging enabled is
dependent on the window resolution setting, a conflict arises when a given
channel is set up in both windows and the resolution settings are different. In this
case, the higher resolution setting is used to determine the filter length.
The following example uses the resolution parameter to specify a resolution
setting of 3. This setting represents 3 significant digits if the measurement suffix is
W or %, and 0.01 dB if the suffix is dB or dBm. Refer to Chapter 2, “MEASurement
Commands”on page 123, for further details on the resolution parameter. The
expected power and source list parameters are defaulted in the example. The
expected power value remains unchanged at its current setting. The source list
parameter defaults as described in the note “Keysight N8262A” on page 65. Note
that as the source list parameter is the last specified parameter you do not have to
specify DEF. The measurement is carried out on the upper window.
Example 5 - Making a Difference Measurement
The following command is performed on the N8262A. It queries the lower window
to make a difference measurement of Channel B -Channel A. The expected power
and resolution parameters are defaulted, leaving them at their current settings.
MEAS1? DEF,3
specifies window
specifies resolution setting
MEAS2:POW:AC:DIFF? DEF,DEF,(@2),(@1)
specifies window
specifies between which channels
the difference is calculated
Channel B - A
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