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Cefn Du, Radio Station, Concrete Base VII

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NPRN505771
Map ReferenceSH56SW
Grid ReferenceSH5499960591
Unitary (Local) AuthorityGwynedd
Old CountyCaernarfonshire
CommunityLlanberis
Type Of SitePLATFORM
PeriodModern
Description

A trapezoidal concrete wireless mast stay wire anchor 14C for mast 14, for the 1923 antenna extension array, which used 400’ steel lattice masts to support the inverted-L antenna. Three such anchors per mast were used for single-height staying. Each anchor featured an iron attachment point for turnbuckle tensioners and two iron loops, used for temporary guying during construction, either side. It measures 3.5 m long by 2.6m wide and 0.75m high.

Source: Rowlands, J., Marconi's Carnarvon Station 1912-1939: a journey into early commercial wireless in north Wales' Second Edition, 2023.

RCAHMW, 2023.