CALIBRATION PROCEDURENI PXIe-6672This document describes how to write a calibration procedure for the10 MHz oscillator frequency of the NI PXIe-6672 timing andsynchronization module.ContentsConventions ............................................................................................ 1Software .................................................................................................. 2Documentation ........................................................................................ 2Calibration Interval ................................................................................. 3Password ................................................................................................. 3Test Equipment ....................................................................................... 3Test Conditions ....................................................................................... 3Calibration Procedure ............................................................................. 4Initial Setup...................................................................................... 4Verification ...................................................................................... 4Measuring the Frequency ......................................................... 6Adjustment....................................................................................... 9Reverification................................................................................... 13ConventionsThe following conventions apply to this document:» The » symbol leads you through nested menu items and dialog box optionsto a final action. The sequence File»Page Setup»Options directs you topull down the File menu, select the Page Setup item, and select Optionsfrom the last dialog box.This icon denotes a note, which alerts you to important information.This icon denotes a caution, which advises you of precautions to take toavoid injury, data loss, or a system crash. When this symbol is marked on aproduct, refer to the Read Me First: Safety and Radio-FrequencyInterference for information about precautions to take.