urgentcomm » SMT

Basic transmission impairments II

Published Saturday, March 01, 2003

Most communications field technicians will have some involvement with multiplex (mux) or telephone company (TELCO) leased-line circuits. When circuit-related problems arise, the technician equipped with an understanding of basic transmission impairments will have one foot forward in the evaluation and resolution process. As mentioned in the first part of this series, circuit impairments are usually placed in one of two categories: steady-state or transient. Steady-state measurements redux This article picks up with the fourth item in the list of steady-state measurements: Phase Jitter. 4. Phase Jitter Phase Jitter is the unwanted phase modulation of a primary signal by ...

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