Keysight FieldFox B Series User Manual page 606

VVM (Vector Voltmeter) Mode - Option 308
VVM Mode Settings
How to set Output Power
— Press Meas Setup 4.
— Then
— Then
Averaging
Averaging helps to reduce the effects of random noise on a measurement. The
FieldFox computes the displayed value over several consecutive readings.
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.
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Output Power
— High Sets output power to the maximum achievable power at all
displayed frequencies. Output power is NOT FLAT across the
displayed FieldFox frequency span. Use the High power setting, when
better dynamic range and lower noise is desired. Please see
"Specifications/Data Sheet" on page 857
— Low Sets output power to approximately –50 dBm.
— Man (Default setting) Sets the output power to –15 dBm, FLAT across
the displayed FieldFox frequency span. If flattened power can NOT be
achieved, a warning message and beep occurs. To achieve a
flattened output power, reduce the power level or stop frequency.
— Then press Power Level
— Then enter a value using the numeric keypad, the
rotary knob.
— Press Enter.
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Avg N where N is the current count setting.
for expected power levels.
arrows, or the
Keysight N9938-90006 User's Guide