HP4402.book : chapter2.fm 39 Thu Feb 11 15:53:59 1999
Power Meter Operation
Setting Averaging
HP E4418B User’s Guide 2-39
Figure 2-9: Averaged Readings
These four resolution levels represent:
• 1, 0.1, 0.01, 0.001 dB respectively if the measurement suffix is
dBm or dB.
• 1, 2, 3 or 4 significant digits respectively if the measurement suffix
is W or %.
To set averaging:
1. Press , , . Press the
softkey to access the filter menu.
2. The current setting of averaging is displayed under the
softkey. To change this setting press . A pop up window
appears. Use the , , or keys to set your filter
length.
3. To confirm your choice press .
The filter can be disabled and re-enabled simply by pressing
.
Step Detection
To reduce the filter settling time after a significant step in the measured
power the filter can be set to re-initialise upon detection of a step
10 dB
10 dB
Minimum Sensor Power
Maximum Sensor Power
Power Sensor
Dynamic Range
10 dB
10 dB
1234
1 8 128 128
Resolution Setting
Number of Averages
1 1 16 256
11232
11116
1118
System
Inputs
Input Settings
More
Filter
Length
Length
Enter
Filter Off On