Keysight N1911A Programming Manual page 37

Power Meter Remote Operation 1
The following example uses the expected value parameter to specify a value of
–50 dBm. This selects the power sensor's lower range (refer to "Range" on
page 60 for details of the range breaks). The resolution parameter is defaulted,
leaving it at its current setting. The source list parameter specifies a Channel B
measurement. The measurement is displayed on the lower window.
specifies expected power value
specifies window specifies channel
MEAS2? -50,DEF,(@2)
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 109, 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 N1912A Only" on page 38.
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.
specifies window specifies resolution setting
MEAS1? DEF,3
N1911A/1912A P-Series Power Meters Programming Guide 37