National Instruments PXI-5650 Calibration Procedure

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National Instruments PXI-5650 Calibration Procedure Manual pdf 1 page image

CALIBRATION PROCEDURENI PXI-5650/5651/5652This document describes the processes to calibrate the NI PXI-5650/5651/5652 (PXI-5650/5651/5652) RF signal generator. This document provides performance tests to verify whetherthe instrument is performing within the published specifications. For more information aboutcalibration, visit ni.com/calibration.ContentsRequired Software .................................................................................................................... 2Related Documentation ............................................................................................................ 2Password................................................................................................................................... 2Calibration Interval................................................................................................................... 2Test Equipment......................................................................................................................... 3Test Conditions......................................................................................................................... 5Calibration Procedures ............................................................................................................. 5Initial Setup....................................................................................................................... 6Characterizing the Test System ........................................................................................ 6Characterizing the Spectrum Analyzer..................................................................... 6Verification....................................................................................................................... 8Validating the ALC Limits Table............................................................................. 8Verifying Frequency Accuracy ................................................................................ 9Verifying High Power Level Accuracy .................................................................... 9Verifying Low Power Level Accuracy..................................................................... 11Verifying Single Sideband Phase Noise at 10 kHz Offset ....................................... 13Verifying Nonharmonics at 0 dBm to -20 dBm Output Power................................ 15Optional Verification........................................................................................................ 19Verifying Harmonics at 0 dBm (Functional Test).................................................... 19Verifying Harmonics at -50 dBm (Functional Test) ................................................ 21Verifying Subharmonics on the PXI-5652 at 0 dBm (Functional Test)................... 23Verifying Subharmonics on the PXI-5652 at -50 dBm (Functional Test) ............... 25Adjustment........................................................................................................................ 27Adjusting ALC ......................................................................................................... 27Adjusting Attenuators............................................................................................... 28Adjusting ALC Limits .............................................................................................. 29Adjusting Frequency Accuracy ................................................................................ 30Updating Calibration Date and Time................................................................................ 30Appendix A: Calibration Utilities............................................................................................. 31Calibration VI References ................................................................................................ 31Worldwide Support and Services ............................................................................................. 31