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Updated: June 22, 2025
The comparatively feeble batteries which had furnished the currents used in the earlier efforts were replaced with great power-driven dynamos, and converters were used instead of the induction coil. Thus was the great Poldhu station established.
Marconi decided to establish a new long-distance station in Ireland; and the Poldhu station is now used for transmitting news to vessels on the Atlantic, whereby, with the addition of intelligence received from the Cape Cod station, most of the first-class liners to America are enabled to publish daily news journals throughout their voyage a very wonderful thing, when we remember how completely a sea voyage used to cut one away from news of home.
At his ear was a telephone receiver, this having been substituted for the relay and the Morse instrument because of its far greater sensitiveness. Marconi had instructed his operator at Poldhu to send simply the letter "s" at an hour corresponding to 12.30 A.M. in Newfoundland. Great was the excitement and suspense in Cornwall when the hour for the test arrived.
The superior equipment at Glace Bay caused the communication from Canada to be excellent, while the reverse was not so good; Canada had granted a subsidy, and England had not. But the communication was established; and a message from President Roosevelt, sent to Cape Cod and transmitted to Glace Bay, was safely received at the Poldhu station.
A power-driven dynamo took the place of the more feeble batteries at Poldhu, converters to increase the power displaced the induction coil, and many sending-wires, or antennae, were used instead of one. On Signal Hill, at St.
The sending of the transatlantic signal, the spanning of the wide ocean with translatable vibrations, was a great achievement, but the young Italian bore his honours modestly, and immediately went to work to perfect his system. Two months after receiving the message from Poldhu at St.
The system of Professor Fessenden is especially unique and original and may be destined to work a revolution in the methods of wireless telegraphy. With an increase in the number of wireless stations and varieties of apparatus came a wide increase in the uses to which wireless telegraphy was applied. We have already noticed the press service from Poldhu.
In this way they hear nothing but the Poldhu news reports which they desire to receive, and are not troubled by messages from other stations within range. Secrecy is also attained by the use of tuning. It is possible that another station may discover the wave-length being used for a secret message and "listen in," but there are so many possible wave-lengths that this is difficult.
Though it is not at the moment the foremost of the Marconi stations, therefore, Poldhu has all the merit of having been the earliest permanent wireless station; and in the near future it is probable additions will be made to its plant, so as to bring it up to the standard of the Company's station at Clifden in Ireland, when it will become available for regular commercial communications between England and America.
This was the station of Poldhu, from which Marconi planned to send vibrations in the ether that would reach clear across to St. Johns, Newfoundland, on the other side of the Atlantic more than two thousand miles away.
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