Keysight Technologies C Series - Smoothing; Single or Continuous Measure

Keysight N9915-90020 User’s Guide 55
CAT (Cable and Antenna Test) Mode
CAT Mode Settings
This setting can be changed at any time without affecting calibration accuracy.
How to set Trace Averaging
1. Press BW 2
.
2. Then
Average N where N is the current count setting.
3. Enter a value using the numeric keypad. Enter 1 for NO averaging.
4. Press Enter.
5. While Trace Averaging is in process, press Sweep 3
then Restart to restart
the averaging at 1.
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 can be used with any CAT format.
When enabled, Smo appears on the FieldFox screen.
How to set Smoothing
1. Press BW 2
.
2. Then
Smoothing ON OFF.
3. Then
Sm. Aperture and enter a value between 0 and 25 (percent) using
the numeric keypad.
4. Press Enter.
Single or Continuous Measure
This setting determines whether the FieldFox sweeps continuously or only once
each time the
Single button is pressed. Use Single to conserve battery power
or to allow you to save or analyze a specific measurement trace.
This setting can be changed at any time without affecting calibration accuracy.
How to set Single or Continuous
—Press Sweep 3
.
Averaging is often used to increase the dynamic range of a measurement.
To achieve the highest dynamic range, select NA mode and reduce the IF
Bandwidth setting. Learn more about dynamic range in
“Increase Dynamic
Range” on page 112
.