Poldhu is a small area in south Cornwall, UK, situated on the Lizard Peninsula it comprises Poldhu Point and Poldhu Cove. It lies on the coast west of Goonhilly Downs, with Mullion 2 km to the south and Porthleven 7 km to the north. Poldhu means "black pool" in Cornish. Cornwall (Cornish: ) is a county in South West England, United Kingdom, on the peninsula that lies to the west of the River Tamar and Devon. ... Lizard Point The Lizard is a peninsula of Cornwall, United Kingdom, and contains the most southerly point of the island Great Britain, Lizard Point. ... Goonhilly Downs is an area of the Lizard Peninsula in Cornwall, just south of Helston and the Naval Air Station at Culdrose. ... Mullion is the largest village on the Lizard peninsula in Cornwall, UK. External links http://www. ... Porthleven is a fishing village near Helston in Cornwall. ...

Poldhu Wireless Station

The site is famous as the location of Poldhu Wireless Station, Guglielmo Marconi's transmitter for the first trans-Atlantic radio message on December 12, 1901 to Marconi's temporary receiving station in Newfoundland. Guglielmo Marconi, Marchese, GCVO (25 April 1874-20 July 1937) was an Italian inventor, best known for his development of a radiotelegraph system, which served as the foundation for the establishment of numerous affiliated companies worldwide. ... December 12 is the 346th day (347th in leap years) of the year in the Gregorian calendar, with 19 days remaining. ... 1901 (MCMI) was a common year starting on Tuesday (link will display calendar) of the Gregorian calendar (or a common year starting on Wednesday of the 13-day-slower Julian calendar). ... Plaque inside Cabot Tower View of St. ...

The station's fifty acre (200,000 m²) plot was bought in 1900 and construction work ran from October 1900 to January 1901, to a design by John Ambrose Fleming. The initial twenty mast circular aerial was destroyed in a storm on September 17, 1901. For Marconi's experiments a temporary installation of two 200 foot (61 m) masts was used. The station transmitted at roughly 13 kW and a wavelength usually given as 1.7 MHz. The original mast layout was not rebuilt, it was replaced with a four mast design, 215 feet (66 m) high and forming a 200 foot (61 m) square. Sir John Ambrose Fleming (), (November 29, 1849 - April 18, 1945) was an English electrical engineer and physicist. ... September 17 is the 260th day of the year (261st in leap years). ...

The site was later used for shortwave experiments, with transmissions by Charles Samuel Franklin to Marconi on the yacht Electra in the Cape Verde Islands in 1923 and in Beirut in 1924. The success of these experiments resulted in Marconi's Beam Wireless Service, opened from the UK to Australia on 8 April 1927, and shortly afterwards to Argentina, Australia, Brazil, Canada and the United States. A solid-state, analog shortwave receiver Shortwave radio operates between the frequencies of 3,000 kHz and 30 MHz (30,000 kHz) [1] and came to be referred to as such in the early days of radio because the wavelengths associated with this frequency range were shorter than the long... For other uses, see Beirut (disambiguation). ...

The station continued to operate until 1933. The site was cleared in 1935 and six acres (24,000 m²) were gifted to the National Trust in 1937 with the rest of the site added in 1960. The site has a stone monument pillar and a number of concrete foundations and earth structures also remain. In 2001 the Marconi Centre, a new museum/meeting building, was opened close to the site by the efforts of the Poldhu Amateur Radio Club, the National Trust and Marconi plc. The standard of the National Trust The National Trust for Places of Historic Interest or Natural Beauty, usually known as The National Trust, is a British preservation organization. ... The Marconi Corporation plc is a radio, telecommunication, and internet equipment manufacturing company, formerly known as The General Electric Company and Marconi plc Marconi Corporation should not be confused with the Marconi Company founded by Guglielmo Marconi. ...

The more substantial building near the site, originally the Poldhu Hotel, built from 1899 to house the Marconi workers is currently a care home.

Marconi also built a second wireless station nearby at Housel Bay - the Lizard Wireless Station.

The western Atlantic station is situated on Cape Cod Massachusetts, in the United States. Cape Cod (or simply the Cape) is an arm-shaped peninsula nearly coextensive with Barnstable County, Massachusetts and forming the easternmost portion of the state of Massachusetts, in the Northeastern United States. ... Official language(s) English Capital Boston Largest city Boston Area  Ranked 44th  - Total 10,555 sq mi (27,360 km²)  - Width 183 miles (295 km)  - Length 113 miles (182 km)  - % water 13. ...