Agilent Technologies N9913A User Manual page 151

Measurement Selection
 Press Measure 1
 Then choose from the following:




Sweep Type and Frequency
Set the source and receiver frequencies for the FOPS measurements. The receiver
is an Agilent U-Series Power Sensor. These are broadband measurement devices,
which means that they measure power over a very wide frequency range. Tables
of frequency and power correction factors are stored within the power sensors.
The receiver (Rx) frequencies are used ONLY to apply the appropriate correction
factors to the power levels measured with the power sensor.
NOTE It is YOUR responsibility to ensure that ONLY the signal of interest is present at
the power sensor. All other signals MUST be filtered appropriately.
How to set Sweep Type and Frequency
 Press Freq/Dist
 Then
 Then
 Then choose from the following:

Frequency Offset using Power Sensor (FOPS) – Option 208
Similar to a 'normalization' cal, this selection guides you
Src Power Measure
through the following steps to make a measurement at the reference plane and
then store the data trace into memory.
1. 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.
2. Press . When finished, press
Measure
measured data into FieldFox memory. Preset or Mode Preset will clear
the stored memory.
3. Optionally choose from the following:
Make another measurement
Re-Measure
o
Src Data View only the re-measured data.
o
Src Memory View only the stored memory data.
o
Src Data & Memory
o
memory data.
4. Press
Done
Not available until source data is stored into memory.
Src Pwr Memory
Displays only the source power memory trace.
Not available until source data is stored into memory. Displays the
Gain
Output power / Source power (memory trace).
Displays the raw output power at the USB power sensor.
Rx Power
Frequency
Sweep Type
Used to make standard (non-offset) power meter measurements at a
CW
single frequency. Learn more beginning on page 142.
Src Data -> Mem
View both the re-measured data and the stored
to store the
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