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Loading coils are used to extend the range of a local loop for voice applications. They are inductors added in series with the phone line which compensate for the parallel capacitance of the line.

They benefit the frequencies in the high end of the voice spectrum at the expense of the frequencies above 3.6kHz.

Thus, loading coils significantly distort xDSL frequencies and must be removed for any DSL operation. They are often found at loops extending farther than 12,000 ft.

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by nobody7 See Profile edited by KeysCapt See Profile
last modified: 2004-01-02 12:02:39


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