LYCOS RETRIEVER 
Decca: Decca Chain
built 286 days ago
An ex-Decca sales manager who was in an RAF navigator during this period said that the worst cargo was coal. The sacks had to be manhandled in and out of the aircraft ... leaving everything and everybody covered in black, dusty powder. After the initial crisis was over, the chain was probably left in place to support the RAF aircraft in West Germany who already had an installed base of Decca receivers. One activity during the cold war was the patrolling the East German border using Decca equipped helicopters. The chain was still active in 1975.
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The “classic” Decca Chain comprised of 4 stations consisting of a Master Station and three Slave Stations. The Slave Station were referred to by a Colour Code, namely Red, Green and Purple which was used for drawing distinctive navigation position lines on Marine Charts.
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The Decca Navigator company intended to undertake all the necessary work including the selection, surveying and clearing of sites, the erection of antennae and the installation of technical equipment. At the end of the project, complete operating chains would be handed over to the Federal Ministry of Transport to be manned by Nigerian engineers trained by Decca in the United Kingdom. The four chains were intended to give contiguous coverage along the Nigerian Coastline using 1880 type equipment.
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Decca Chain