Cross-talk measurement apparatus with near-end compensation

Details Cross-talk measurement apparatus with near-end compensation Cross-talk measurement apparatus with near-end compensation

H - Electricity

04

B

H04B 3/32 (2006.01) G01R 31/00 (2006.01) G01R 31/02 (2006.01) G01R 31/302 (2006.01) H04B 3/46 (2006.01) H04L 12/26 (2006.01)

Patent

CA 2163289

A pulse-based cable crosstalk measurement instrument provides near-end cross talk (NEXT) information for characterizing the performance of local area network (LAN) cable systems. Accuracy of the cross-talk measurement is enhanced by measuring and mathematically removing the cross-talk effects of the near-end connector. Accuracy of the cross-talk measurement is further enhanced by conducting the cross-talk measurement with pulses of differing pulse widths selected to have increased pulse energy in frequency ranges of interest. A composite cross-talk response using the individual cross-talk responses of the individual pulse widths concatenated together is created and then compared with an industry-standard pass fail limit to provide a pass-fail decision on a LAN cable test system under test.

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