In 1996 three patents were beam which generates a it Directional Aerials Used In the 1919 patent, the radiolocater included two directional aerials and an "exploring coil" The aerials were rotated and their posi-y tion, when the exploring coil gave the strongest Signal, ted the location of the atmospheric electrical discharges by the radio waves which they created. In the words of the patent this device is useful for meteorological purposes such as the location of atmospheric electrical discharges.
Mr. Watt continued with his research, for a number of patents in his name were taken out for various improved radio ion finders, more sensitive and accurate, designed to eliminate errors and interference
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