Keysight N9927-90001 User’s Guide 463
Frequency Offset Using Power Sensor (FOPS) – Option 208
FOPS Settings
FOPS Settings
The following settings are unique to FOPS. Standard USB Power Meter mode
settings, which may be useful with FOPS, are documented in that chapter
starting in “USB Power Meter Settings” on page 453
Select Power Meter (USB Sensor) before making any setting in this section.
How to select Power Meter (USB Sensor)
—Press Mode
—Then Power Meter (USB Sensor)
— Then connect a USB Power Sensor to either FieldFox USB port.
— For a complete list of supported Keysight USB Power Sensors, please visit:
www.keysight.com/find/usbsensorsforfieldfox
Measurement Selection
—Press Measure 1
— Then choose from the following:
— Src Power Measure
Similar to a ‘normalization’ cal, this selection guides
you through the following steps to make a measurement at the reference
plane and then store the data trace into memory.
— Connect the power sensor to the measurement reference plane. This
is the location to where power measurements are to be referenced.
For example, to measure only the conversion loss through a
converter, attach the power sensor to the cable that connects to the
converter input.
—Press Measure
. When finished, press Src Data -> Mem to store the
measured data into FieldFox memory. Preset or Mode Preset will
clear the stored memory.
— 3.Optionally choose from the following:
——Re-Measure
Make another measurement
——Src Data
View only the re-measured data.
——Src Memory
View only the stored memory data.
——Src Data & Memory
View both the re-measured data and the
stored memory data.
—4.Press Done
— Src Power Memory Not available until source data is stored into memory.
Displays only the source power memory trace.
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