Disclaimer; Performing A Wcdma Power Servo And Acpr Measurement; Example Program 3 - Code Structure - Keysight Technologies M9393A Programming Manual

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Performing a WCDMA Power Servo and ACPR Measurement

When making a WCDMA Power Servo and ACPR measurement, Servo is performed
using "Baseband Tuning" to adjust the source amplitude and then "Baseband
Tuning" is used to digitally tune the center frequency in order to make channel
power measurements, at multiple offsets, using the Power Acquisition interface of
the M9393A PXIe VSA.

Example Program 3 - Code Structure

The following example code demonstrates how to instantiate two driver instances,
set the resource names and various initialization values, and initialize the two driver
instances:
Keysight M9393A PXIe Performance Vector Signal Analyzer
The M9393A PXIe VSA and the M9381A PXIe VSG offers two modes for
adjusting frequency and amplitude:
RF Tuning – allows the M9381A PXIe VSG to be set across the
complete operating frequency and amplitude range
Baseband Tuning – allows the frequency and amplitude to be
adjusted within the IF bandwidth (160 MHz) and over a range of
the output level.
Send RF and Modulation commands to the M9381A PXIe VSG driver and
1.
Apply changes to hardware.
Send RF and Power Acquisition commands to the M9393A PXIe VSA driver
2.
and Apply changes to hardware.
Run a Servo Loop until it is at the required output power from DUT.
3.
Perform an ACPR Measurement for each Adjacent Channel to be measured.
4.
5.
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