After the war, the research programme became more diverse, branching into;
A long term study was carried out, in conjunction with the BBC and the Post Office, into the effect of the atmosphere and terrain on radio propagation (40 MHz - 1 GHz). This formed the basis of national and international planning for communications, including radio and television.
If any propagation beyond the horizon were to be possible, it became necessary to understand the detailed nature of the refractive index in the atmosphere. This marked a new field of research for the scientists at Slough, a study that was made easier by the development of ground-based radar studies of the layer structures in the troposphere and the use of airborne refractometers.
Between 1953 and 1960, in a collaboration with scientists from Imperial College, London, a series of experiments were conducted. These studies included measuring the noise in germanium and silicon diodes, the behaviour of transistors in the waveband 10-1000 MHz and the measurement of the properties of ferrites.