 Complete the following phrase:  His first job was designing test equipment for valves for use in radio and television for EMI Electronics, whom he joined in 1930 at Hayes, Middlesex. Before the Second World War he was part of a team at EMI that worked on the development of radar. After the war he continued in this field and was project engineer for the mortar-locating radar, code name Green Archer. He was awarded the MBE in 1962 for his work as Chief Projects Engineer at EMI. He continued to be the domit figure in weapon-locating radar until his retirement developing the Cymbeline system. Cymbeline was more accurate than Green Archer and more mobile. In British service, the radars were used in the Falkland Islands in 1982, the Gulf War in 1991 and 