From 1960 to 1991 he was in the Royal Signals and Radar Establishment, from 1967 as leading scientist, from 1973 as Deputy Chief Scientific Officer and from 1984 as Chief Scientific Officer.
1960 bis 1991 war er in der Abteilung Physik beim Royal Signals and Radar Establishment, ab 1967 als leitender Wissenschaftler, ab 1973 als Deputy Chief Scientific Officer und ab 1984 als Chief Scientific Officer.