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CALIBRATION PROCEDURE
PXIe-5665
3.6 GHz and 14 GHz RF Vector Signal Analyzer
This document contains the verification procedures for the National Instruments PXIe-5665
RF vector signal analyzer (VSA). Refer to
ni.com/calibration
for more information about
calibration solutions.
When not otherwise specified, the procedures in this document refer to both the PXIe-5665
3.6 GHz VSA and the PXIe-5665 14 GHz VSA products. In places where the procedures differ
between the two products, the appropriate device settings are specified.
Note
PXIe-5665 tuned frequencies greater than 3.6 GHz and procedures with the
preselector enabled for frequencies greater than 3.6 GHz apply only to the PXIe-5665
14 GHz VSA.
NI warrants the PXIe-5665 to meet its published specifications if the individual modules are
calibrated and operating within specifications. For more information about RF system
calibration, visit
ni.com/manuals
and search for
Letter of Conformance
.
Contents
Software.................................................................................................................................... 2
Documentation.......................................................................................................................... 2
Test Equipment......................................................................................................................... 3
Test Conditions......................................................................................................................... 10
System Options......................................................................................................................... 11
Initial Setup............................................................................................................................... 11
Characterizing the Test System ................................................................................................ 11
Zeroing and Calibrating the Power Sensor....................................................................... 11
Characterizing Power Splitter Reference Output ............................................................. 11
Characterizing Power Splitter Difference......................................................................... 12
Characterizing RF Source Power (Direct)........................................................................ 13
Characterizing RF Source Power (with Lowpass Filter).................................................. 15
Characterizing RF Source Power (Combined) for Frequencies
700 MHz..................... 17
Characterizing RF Source Power (Combined) for Frequencies >700 MHz..................... 19
Characterizing RF Source Power (Through Splitter) ....................................................... 21
Characterizing RF Source Power (with Splitter and Attenuator) ..................................... 23
Characterizing Spectrum Analyzer Response .................................................................. 25