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1 16. 10. 2014.

An example of modeling local loop transfer function in DSL environment

This paper shows an example of estimation and calculation of transfer function of twisted pair channel in DSL environment, from provider point of view, instead of commonly used manufacturers of transceivers ones. A brief overview of twisted pair as communication channel is given. End-to-end transfer function with twisted pair primary parameters as variables is introduced. The results of measurement on cable in commercial exploitation and its comparison with introduced theoretical approach are shown. The 20-pair, 1000-meter-long cable, completely buried, which had been 100% occupied by ADSL2+ signals and operating in rural conditions, is used.


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