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METHOD AND SYSTEM FOR RADIO-FREQUENCY SIGNAL COUPLING TO MEDIUM TENSION POWER LINES WITH AUTO-TUNING DEVICE

  • US 20110200123A1
  • Filed: 04/25/2011
  • Published: 08/18/2011
  • Est. Priority Date: 08/04/2004
  • Status: Active Grant
First Claim
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1. A method for dynamically tuning a power line communication system comprising an inductive coupler, a tank circuit comprising a plurality of capacitors, a first transmitter, and a receiver, said method comprising:

  • installing said inductive coupler without a power outage;

    passing a first selected carrier frequency signal generated by said first transmitter through said coupler;

    receiving said first selected carrier frequency signal at said receiver;

    measuring amplitude of said received first selected carrier frequency signal;

    switching said capacitors in and out of said tank circuit until said measured amplitude of said received first selected carrier frequency signal is at a maximum;

    passing a second selected carrier frequency signal generated by said first transmitter through said coupler;

    receiving said second selected carrier frequency signal at said receiver;

    measuring amplitude of said received second selected carrier frequency signal; and

    switching said capacitors in and out of said tank circuit until said measured amplitude of said received second selected carrier frequency signal is, at a maximum;

    wherein said second selected carrier frequency signal is different from said first selected carrier frequency signal.

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