Agilent Technologies N9913A User Manual page 147

Averaging
Averaging is used to improve measurement accuracy in low power or noisy
power situations. Increased averaging improves measurement accuracy, but also
reduces measurement speed.
How to set Power Meter Averaging
 Press BW 2 or Meas Setup 4.
 Then choose from the following:
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.
Step Detection Mode
The FieldFox supports the Step Detection feature that is present in Agilent USB
power sensors. When enabled, this feature reduces settling time after a
significant step in the measured power. For more information, please refer to the
USB Power Meter documentation.
How to set Step Detection mode
 Press Meas Setup 4.
 Then
Power Meter (USB) Mode
Averaging Auto Man Off
o
Auto Allows the USB Power Sensor to use its Auto Averaging settings.
o
See the USB Power Sensor documentation for details.
Man Manually enter an averaging count by setting Num Averages.
o
OFF Performs NO averaging.
o
Sets the number of Power Meter readings to be averaged
Num Averages
o
before a valid reading is displayed. When a number is entered, Averaging is
automatically set to Man.
Single
Single Automatically sets Continuous OFF and causes FieldFox to make
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.
Step Detection ON Off
button is pressed. Use Single to conserve battery
--> while the measurement occurs.
Hold
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