Setting The Averaging - Keysight Technologies U2040 X-Series Programming Manual

1 U2040 X-Series Remote Operation

Setting the Averaging

This section provides an overview of setting the averaging. For more detailed information,
refer to the individual commands in Chapter 16, "SENSe Subsystem".
Averaging
The U2040 X-Series has a digital filter to average power readings. The number of readings
averaged can range from 1 to 1024. This filter is used to reduce noise, to obtain the desired
resolution, and to reduce the jitter in the measurement results. However, the time to take
the measurement is increased. You can select the filter length or you can set the
U2040 X-Series to the auto-filter mode. To enable and disable averaging, use the following
command:
[:SENSe[1]:]AVERage[:STATe] <boolean>
Auto-averaging mode
To enable and disable the auto-filter mode, use the following command:
[:SENSe[1]:]AVERage:COUNt:AUTO <boolean>
When the auto-filter mode is enabled, the U2040 X-Series automatically sets the number
of readings averaged together to satisfy the filtering requirements for most power
measurements. The number of readings averaged together depends on the resolution and
the power level currently being measured. Figure 1-2 shows the typical number of
averages for each range and resolution when the U2040 X-Series is in the auto-filter mode
and set to the normal speed mode.
44 Keysight U2040 X-Series Programming Guide