Everything about Decca Radar totally explained
The Decca Company, a British gramophone manufacturer that, as
Decca Records, released records under the Decca label, contributed to the British war effort during the
Second World War. This military engineering activity resulted in a number of commercial ventures after the war, in particular the
Decca Navigator System, and the
Decca Radar company.
Decca Radar launched its first marine
radar, the 159, in 1950. (The radar was named after the number of the London bus that passed the
Brixton laboratory where the radar was designed and manufactured.) The company held a position at the forefront of commercial marine radar technology, producing the first true motion radar, the first anti-collision radar and the first "Type Approved" colour radar. An indication of the influence of the company is that the word for radar in Chinese is "Decca", and China, as the third largest ship builder in the world, most of ships it builds are equipped with navigation radars of Decca origin (either license produced or directly imported).
Decca Radar was bought in 1979 by
Racal Electronics forming
Racal-Decca Marine and related companies. Early Racal-Decca radars had dropped the Decca name which mariners had trusted for years, but outcry from marine customers prompted its return. At this time the business was run from
New Malden in
Surrey,
UK. In the mid-1980s, Decca introduced the BridgeMaster series of radars, which used a
rasterized color display. The BridgeMaster II series followed, with a
Motorola 68000 CPU and powerful software options like
vector traces showing the trajectories of other ships as part of the
ARPA package.
In December 1996 the US corporation
Litton Industries bought Racal-Decca Marine, as well as
Sperry Marine and
C.Plath, in order to strengthen their marine electronics position under the
Litton Marine Systems name. The Decca name, engineering, and design continued to be used on the BridgeMaster II and, in 1998, the BridgeMaster E series of radars was launched. The Sperry section of Litton Marine Systems, based in
Charlottesville,
Virginia, was already producing its own line of marine radars, the Rascar, at the time of the acquisition but this was replaced by the BridgeMaster E. The Rascar had been the American-made radar of choice in the American Navy and Coast Guard but eventually the BridgeMaster E made inroads there as well. Both Decca and Sperry radar divisions were under heavy competitive pressure from
Gold Star and
Furuno, though remained the radars of choice on large ocean-going vessels.
Northrop Grumman acquired Litton Industries in 2000 and this eventually heralded, in 2004, the end of the use of the Decca name on radars after a period of more than 50 years. In 2006 the VisionMaster FT series of marine radars replaced the aging BridgeMaster E series.
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