Rf leak detector

Abstract From the Canadian patent

The detector is primarily useful in detecting RF leaks in a TV cable. RF leaks are detected by transmitting a coded signal and using a very narrow band receiver to detect the code thereby differentiating between small amounts of RF leakage from the cable and extraneous locally generated RF energy. The leakage from the TV cable may be due to small cracks in the cable, loose fittings or other non-RF tight conditions. The detector is a three-part system including a transmitter, a remote cable powered preamp and antenna assembly, and a narrow band receiver providing an audio output. The transmitter is designed to be permanently installed at the head end location and is modulated with a unique …