Harry Kauper George Towns built the first portable radio for the Rev. John Flynn. Powered by a generator driven by the rear wheel of Flynn's truck, it worked well but Flynn wanted a radio which did not rely on a fuel supply: in 1926 Kauper introduced Flynn to Alfred Traeger who developed the pedal wireless which was to be used by the Flying Doctor Service of Australia. In June 1926 Kauper became the chief engineer of 5CL, Adelaide (Central Broadcasters Ltd). When 5CL was taken over by the National Broadcasting Service in January 1930 he became chief engineer for 5AD (The Advertiser
John Flynn (minister) station properties in a wide radius of Beltana, and their practical and spiritual service was valued in the isolated localities. Flynn used it as an opportunity to look at the potential for something bigger. By 1912, after writing a report for his church superiors on the difficulties of ministering to such a widely scattered population, Flynn was made the first superintendent of the Australian Inland Mission which became Frontier Services. Flynn's vision was to establish a 'Mantle of Safety' for the people of Outback Australia. As well as tending to spiritual matters, Flynn quickly established the need for medical care