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GB70GB England flag England

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QSL: c/o Oliver Prin M0WAG, Chelmsford ARS QSL mgr

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GB70GB is a Special Special-Event callsign issued by Ofcom-UK for the 70th anniversary of the opening of the Research Centre at Great Baddow - home to what was originally Marconi's Research Laboratories; and also later on home to famous staff including Spycatcher author (Peter Wright) and Chris Cockrell (Hovercraft inventor). A special amateur station will be operating on Saturday 3rd October

Opened just before the outbreak of WW2 its 47 acres were immediately camouflaged by nets and painted roads to protect it against air raids (unlike the Marconi factory at New St in central Chelmsford which did get bombed) where it was home to strategic wartime magnetron and quartz crystal production.

Baddow is also home to the last surviving fully-intact 360ft Chain Home radar mast from the Battle of Britain - itself coming up to its own anniversary on 26th Feb 2010 (75th anniversary of the Daventry experiment by Watson-Watt)

Pre-registered Visitors on Oct-3 saw a series of exhibits on Baddows history and technology from turn of the century Marconi heritage right up to present day innovations at what is  now known as BAE Systems Advanced Technology Centre.

Latest Update: GB70GB was setup for the Great Baddow 70th anniversary event on Saturday 3rd October and used a Flex-3000SDR and Icom-756 (the Flex providing a nicer display on the stations overhead projector to visitors). The main antenna was a rooftop Comet CHA-250 vertical

You can see nice photos etc from the day on the Chelmsford GB70GB webpage

In 2010 a new callsign GB75CH (Chain Home) has been issued for the Daventry anniversary - see also separate QRZ entry

6269980 Last modified: 2015-07-16 00:27:51, 2384 bytes

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