If Bandwidth; Smoothing; Single Or Continuous Measure - Keysight FieldFox B Series User Manual

NA (Network Analyzer) Mode
NA Mode Settings
6. While averaging is in process, press Sweep 3 then

IF Bandwidth

The FieldFox converts the received signal from its source to a lower
intermediate frequency (IF). The bandwidth of the IF bandpass filter is
adjustable. Reducing the IF receiver bandwidth reduces the effect of random
noise on a measurement. However, narrower IF bandwidths cause longer
sweep times.
How to set IF BW
1. Press BW 2 >
2. Then choose from the following:
—

Smoothing

Trace smoothing averages a number of adjacent data points to smooth the
peak-to-peak noise values on a displayed trace. The number of adjacent data
points that are averaged is known as the smoothing aperture. Aperture is set
by specifying a percentage of the X-axis span.
Trace smoothing does NOT significantly increase measurement time.
Smoothing is used in Group Delay measurements, although it can be used with
any NA formatEXCEPT Polar or Smith Chart. Learn more about NA Mode
formats, including Group Delay, in
When enabled,
How to set Smoothing
1. Press BW 2 >
2. Then
3. Press Enter

Single or Continuous Measure

This setting determines whether the FieldFox sweeps continuously or only once
each time the
or to allow you to save or analyze a specific measurement trace.
Keysight N9938-90006 User's Guide
— Point averaging is usually faster than sweep averaging. However,
you may need to increase the Point Average count to obtain the
same level of noise reduction as with sweep averaging.
averaging at 1.
IF BW
10 Hz | 100 Hz | 1 kHz
More 30 Hz | 300 Hz |
Smo appears on the FieldFox screen.
Smoothing ON OFF
Sm. Aperture and enter a value between 0 and 25 (percent) using
the numeric keypad.
Single button is pressed. Use Single to conserve battery power
| 10 kHz | 100 kHz
3 kHz | 30 kHz
"Format" on page
Restart to restart the
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