Ts. - History of the RDT Organisation in the Far East 1941-42. In December 1940 three officers were sent to Singapore to establish RDF stations in the Far East - Squadron Leader C F Pearce was made Command Radio Officer, Mr H T Roberts, siting officer and Flight Lieutenant T C C Carter in command of RIMU. Priority of RDF cover was for Singapore and it was not felt necessary to cover Hong Kong or Ceylon. The construction of sites was very slow. In May Squadron Leader Carter took over from Pearce who had been invalided home. Continual delays assured during 1941 but by November 1941 it was decided to site an RDF station at Hong Kong. Despite 55 minutes siting of the first air raid in Singapore in December 1941 the sirene were not sounded and no aircraft had left the ground. During February 1942 Radio French AHQ was evacuated from Singapore to Java.