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20 January 2007
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Flat Holm Island - Marconi Waves
Marconi broadcasts the first ever radio waves across water, from Lavernock to Flat holm Island

In 1895, Guglielmo Marconi built a transmitter and receiver in his house, sending signals from one end of the house to the other.

Later that year, he reportedly transmitted to his garden, then to a listening post 1.5 miles away. When the Italian government refused to finance his work, Marconi moved to England.

His goal was to transmit across the Atlantic Ocean. Marconi set up operations in several places. Among them, Lavernock, near Penarth, Wales; On May 13, 1897, Marconi transmitted the first wireless signals over water from Lavernock to Flatholm Island.

Grid Reference: ST223649

Information about Flat Holm available from:
The Flat Holm Project
The Pierhead
Barry Docks
Vale of Glamorgan CF62 5QS

Tel. 01446 747661

Find out more about local history in SE Wales at our local Where I Live site

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Map © Crown copyright. All rights reserved BBC AL100019855 2002
Blaenavon - The Ironworks
Bridgend - Escape From Hut 9
Caerleon - Roman Legion
Cosmeston - The Medieval Village
Flat Holm Island - Marconi Waves
Glyntaff - Dr Price
Hirwaun - Tower Colliery
Llantwit Fadre - The Gilbern
Pontypridd - Third Time Lucky
St Fagans - House Of The Future
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