Patent ID: 8218608

Claim:
A self-tuning duplicating transceiver comprising: a microprocessor; a transmitter directly connected to the microprocessor and including a radio frequency oscillator capable of being electrically tuned to a carrier frequency within a range of frequencies, the transmitter further including a transmitter antenna; and a receiver directly connected to the microprocessor and including a counter for determining an edge count associated with a received signal and indicative of a received signal carrier frequency, the receiver further including a receiver antenna separate from the transmitter antenna, wherein the receiver is not directly connected to the transmitter; a prescaler that divides the received signal prior to introduction of the received signal to the counter, wherein the microprocessor is programmed to, on demand by a user, receive an unknown signal with the receiver and use the counter to determine the edge count thereof, store the edge count for the unknown signal, and electrically tune the transmitter oscillator to a carrier frequency corresponding to the edge count for the unknown signal; and wherein the microprocessor is further programmed to further electrically tune the transmitter oscillator by periodically repeating the following: transmitting a new signal at the carrier frequency corresponding to the edge count for the unknown signal, receiving the new signal and using the counter to determine the edge count thereof, further electrically tuning the transmitter oscillator to match the new signal edge count to the unknown signal edge count, and storing a tuning setting for the transmitter.