Single/Continuous; Zeroing - Agilent Technologies FieldFox N9912A User Manual

Average Count determines the number of readings 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 readings that have been averaged together. When the
counter reaches the specified count, then a „running average‟ of the last N
readings 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 Averaging
 Press Meas Setup 4
 Then
 Then
 Enter a value using the numeric keypad. Enter 1 for NO averaging.
 Press Enter.
 While Averaging is in process, press Meas Setup 4, then More, 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.

Zeroing

When performing a Cable Trimming operation, one cable is compared to another.
After measuring the first, shorter cable, pressing Zero performs the same
operation as Data->Memory, then Data/Mem, also known as Normalization. All
subsequent electrical length measurements are relative to the stored
measurement.
To make an accurate measurement, set
VVM (Vector Voltmeter) Mode
More
where N is the current count setting.
Average N
to restart the averaging.
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
Makes continuous measurements. This is the typical setting
Continuous
o
when battery power is not critical.
button is pressed. Use Single to conserve battery
--> while the measurement occurs.
Zero OFF
Restart
Hold
before calibrating.
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