Memories of radar research

The paper is a personal account of the author´s involvement in radar research from the beginning of 1938 up to the end of the Second World War. First, the paper describes the early research work carried out at the Air Defence Research and Development Establishment (ADRDE), in which the author was involved, on radio direction finding. The paper then describes the Tizard Mission to North America, to open up the exchange of information on radar equipments with the USA and Canada. The main body of the paper comprises an account of the various equipments produced by ADRDE itself, and also in collaboration with other Establishments such as the Telecommunications Research Establishment and the Admiralty Signals Establishment in the UK, and the National Defense Research Committee in the USA.