Wireless Telegraphy.

Gisborne Times, Volume VII, Issue 386, 10 April 1902, Page 1

Wireless Telegraphy.

MARCONI EXPLAINS, Signor Marconi is talking at. close range about his transatlantic experi. nient. Before sailling for England lie stated in New York that his success had been indubitable. The reason why the letter “S ” was jumped across the ocean instead of a stated message is that the three dots are easily transmitted and have been used in all his experiments. The “S ” was received in Newfoundland for several hours and at a p rearranged speed, running as high as thirty-two times a minute. The energy sufficient to light a small incandescent lamp has been found strong enough to send a wireless message 200 miles , and it takes about twenty times as much power to send the message 2,000 miles. However Signor Marconi says that the cost for the greater distance does not increase in proportion to the power required. Pie thinks that if this system is established commercially, it will greatly cheapen b communications. Mountains he believes are no obstruction to wireless telegraphy.

Messages can hardly be stolen, according to Signor Marconi. “By modifications of the original system,” he says, “it has been found possible so to adjust one transmitter to one receiver as to make it practically impossible, or at least very difficult for any one not acquainted witli the particular tone of the wave to decipher the message. This system is not at present in use on ships at sea. It is deemed to be of utility that one ship should be able to communicate with any other ship, so that one vessel may communicate with another in distress. Across land, however, the adjusted system must he used.”

The inventor is building a permanent station in Nova Scotia to replace the one in Newfoundland. He also talks of repairing the station at Wellfleet, on Cape Cod, which was demolished by a hurricane some time ago. The possible effects of wireless telegraphy on cable business was indicated by the recent discussion of the proposed Pacific cable before one of the Congressional Committees. Vice-President Ward, of the Pacific Commercial Com-

pany, is reported to have stated that, if the wireless experiments had come to light, a little earlier, it is probable that the Pacific table would not have been undertaken, and that the discovery would probably deter the laying of anv more cables.,