§ Mr. Foulkesasked the Secretary of State for Defence (1) if he will list the locations of all HI/FIX 6 radio transmitters now operating or under construction.
(2) what types of vessel are equipped to make use of the HI/FIX 6 radio transmitter's signals;
(3) if he will list all the purposes that the H I/FIX 6 radio transmitter is intended to serve;
(4) if he will state the total expenditure on the HI/FIX 6 system; and if he will list vessels adapted to make use of the HI/F1X system;
(5) why the HI/FIX 6 radio system was built.
§ Mr. Ian StewartHifix 6 is a radio navigation aid providing precise navigational data to RN ships operating in coastal waters. The system is fitted to all Hunt, River and Ton class mine-countermeasures vessels and to all ocean going and coastal survey vessels. Total expenditure on setting up the Hifix 6 systems, including development, production, spares and works costs, was about £10 million at 1983 prices. In addition, there is a small running maintenance contract. The location of Hifix 6 radio transmitters is classified.