Setting Measurement Averaging; Figure 2-17 Typical Averaged Readings - Keysight N1911A User Manual

2 General Power Meter Functions

Setting Measurement Averaging

The power meter uses 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,
obtain the desired resolution and to reduce the jitter in the measurement results.
Increasing the value of the measurement average reduces measurement noise.
However, the measurement time is increased. You can manually select the
measurement average or you can set the power meter to auto measurement
average mode. The default is AUTO.
When the auto measurement average mode is enabled, the power meter
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 setting and the power level
currently being measured.
Figure 2-17
Figure 2-17
when the power meter is in auto filter mode and is set to normal speed mode.
P-Series power meters recognize different sensor types when they are connected,
and configure suitable averaging automatically.
78
Minimum sensor power
10 dB
10 dB
10 dB
10 dB
Maximum sensor power
Typical averaged readings
shows the typical number of averages for each range and resolution
Resolution setting
2
1
128
1 8
1
1
1 1
1
1
1
1
Keysight N1911A/1912A User's Guide
4
3
128
256
16
2 32
1
16
1
8