Method and system providing increased antenna functionality in a RF distribution system

  • US 5,983,070 A
  • Filed: 04/08/1997
  • Issued: 11/09/1999
  • Est. Priority Date: 04/19/1996
  • Status: Expired due to Term
First Claim
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1. A method for transmitting a RF signal contained in a RF bandwidth over a low bandwidth medium having a transmission bandwidth below said RF bandwidth, said low bandwidth medium comprising a main cable, said main cable comprising a plurality of constituent cables, said method comprising the steps of:

  • a) receiving said RF signal;

    b) providing a global reference tone of high stability at a frequency within said transmission bandwidth of said low bandwidth medium;

    c) generating a first RF reference tone of high stability by using a first adjustment signal derived from said global reference tone to control the output of a first local oscillator, such that said first local oscillator generates said first RF reference tone;

    d) mixing said first RF reference tone with said RF signal to produce an IF signal within said transmission bandwidth;

    e) feeding said IF signal through a first constituent cable of said plurality of constituent cables;

    f) generating a second RF reference tone of high stability by using a second adjustment signal derived from said global reference tone to control the output of a second local oscillator, such that said second local oscillator generates said second RF reference tone; and

    g) mixing said second RF reference tone with said IF signal fed through said first constituent cable to recover said RF signal; and

    h) re-transmitting said RF signal recovered from mixing said second RF reference tone with said IF signal.

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