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Method for detecting an oscillation in an on-frequency repeater

  • US 7,593,689 B2
  • Filed: 09/16/2004
  • Issued: 09/22/2009
  • Est. Priority Date: 09/16/2003
  • Status: Expired due to Fees
First Claim
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1. A method of detecting oscillation in an on-frequency repeater having an RF signal path coupled between an input antenna and an output antenna, the method comprising steps of:

  • detecting a first RF signal power level within the RF signal path during an un-muted period in which transmission of an output RF signal through the output antenna is enabled;

    detecting a second RF signal power level within the RF signal path during a mute period in which transmission of an RF signal through the output antenna is disabled;

    comparing a difference between the first and second detected RF signal power levels to a predetermined threshold; and

    determining a likelihood of oscillation based on the comparison result.

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