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      Filtronetics INC 6010 Parretta Drive Kansas City, Missouri (USA) 64120
               Tel: 816-231-7375 Fax: 816-241-0368 Email: filtro@filtro.net

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Measuring Jitter With Electronic Instruments

Jitter is theoretically defined as the short term non-cumulative variations
of significant instants of a digital signal from its ideal position in time.

Two common methods of measuring jitter are:

  1. Period jitter with a digital storage oscilloscope (DSO) or time
           interval analyzer (TIA). This measurement is usually made in pSec.

  1. Phase jitter measurements are made over a specific frequency
          band and recalculated to the time domain. This method is used
          typically for SONET equipment jitter specifications.

These measurements are usually made in pSec RMS in ___KHz to __MHz.