Averaging; Video Bandwidth; Single Or Continuous Measure - Keysight N9912A User Manual

Averaging

Averaging helps to reduce the effects of random noise on a measurement. The more
measurements that are averaged, the greater the amount of noise reduction.
Averaging is allowed for all pulse measurements.
Averaging is performed in the USB Power Sensor before the data is sent to the
FieldFox.
Annotation in the left pane shows the state of the Average setting. When Manual is
selected, the 'Num of Averages' is setting is also shown.
How to set Averaging
 Press BW 2.
 Then
 Then choose from the following:


Video Bandwidth

The Video Bandwidth setting enables an FIR (finite impulse response) filter within the
USB Power Sensor. The filter setting affects the appearance of the trace results.
Video Bandwidth is allowed for all pulse measurements
How to set Video Bandwidth
 Press BW 2.
 Then
 Then choose from the following:

Single or Continuous Measure

This setting determines whether the FieldFox continuously queries the USB Power
Sensor for data, or only once each time the
conserve battery power or to allow you to save or analyze specific data.
How to set Single or Continuous
 Press Sweep 3
 Then choose one of the following:
Pulse Measurements Mode - Option 330
Averaging
Averaging is set to a reasonable value by the USB Power Sensor.
Auto
o
Averaging is set to the value specified in the 'Num Averages' setting.
Man
o
Averaging is OFF
Off
o
Select a value using the numeric keypad, then press Enter.
Num Averages
Video Bandwidth
Video Bandwidth is disabled.
Off
o
Similar to a low pass filter, ripple in the pass band is minimized but allows
Low
o
higher side-lobes on the filter skirt.
Smooth pass band with reasonable transition ripple.
Medium
o
The pass band ripple is similar to the OFF setting, but the transition skirts
High
o
are smoother.
button is pressed. Use Single to
Single
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