Averaging; Single/Continuous; Resolution - Agilent Technologies FieldFox N9923A User Manual

Averaging

Trace Averaging helps to smooth a trace to reduce the effects of random noise on
a measurement. The FieldFox computes each data point based on the average of
the same data point over several consecutive sweeps.
Average Count determines the number of sweeps to average. The higher the
average count, the greater the amount of noise reduction.
An average counter is shown in the left edge of the screen as Avg N. This shows
the number of previous sweeps that have been averaged together to form the
current trace. When the counter reaches the specified count, then a „running
average‟ of the last N sweeps is displayed. Average Count = 1 means there is NO
averaging.
This setting can be changed at any time without affecting calibration accuracy.
How to set Trace Averaging
 Press BW 2 .
 Then
 Enter a value using the numeric keypad. Enter 1 for NO averaging.
 Press Enter.
 While Trace Averaging is in process, press Sweep 3 then
Single or Continuous Measure
This setting determines whether the FieldFox measures continuously or only
once each time the
power or to allow you to save or analyze a specific measurement.
This setting can be changed at any time without affecting calibration accuracy.
How to set Single or Continuous
 Press Sweep 3.
 Then choose one of the following:
 You can also use Run / Hold +/- to toggle between Single and Continuous.
Resolution (Number of Data Points)
Data points are individual measurements that are made and plotted across the X-
axis to form a trace. Select more data points to increase measurement resolution.
However, more data points require more time to complete an entire
measurement sweep.
CAT (Cable and Antenna Test) Mode - Option 305
where N is the current count setting.
Average N
the averaging at 1.
Single
Automatically sets Continuous OFF and causes FieldFox to make
Single
o
ONE measurement, then hold for the next Single key press. When a data
trace is displayed, the entire trace is measured, then holds. The
annotation changes to an arrow
Continuous ON OFF
o
setting when battery power is not critical.
button is pressed. Use Single to conserve battery
--> while the measurement occurs.
Makes continuous measurements. This is the typical
to restart
Restart
Hold
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