WIRELESS LANDMARKS

Evening Post, Volume CIV, Issue 4, 5 July 1922, Page 11

WIRELESS LANDMARKS

OF PAST TEN YEARS (From Springfield Republican). 1911—Canadian Government leasefa! radio stations for 20 years. 1912—Radic distress signals from the Titanio brought assistance and saved lives of 700 passengers. ■■ 1913—Tests were' made between the Eiffel Tower in Franoe and tho station at Washington. >. During the trip into Central Asia, an explorer received his longitude »nd time signals from a. distant radio station. TESTS ON HIGH SEAS. 1914—Marconi and her radio officials started test of wireless telephone batween several vessels of the Italian Fleet. Tho test was continued between vessels on the high seaß, and voices .were heard with clarity at a distance of forty-four miles. One-day radio telephone communication was kept up constantly for twelve hours. Great Britain declared war upon Germany, '4th August, and all private radio telegraphy and telephony suspended. Within the next few 'months, praotioally all the German, wireless stations in foreign possessions were 6eized and destroyed by Allied forces. 1915—Radio communication between AmeXca a-nd Japan was completed. The stations were located at San Francisco and Tokio, with a relay station at Honolulu. • . Tho Amerioan Telephone Telegraph Company succeeded in radio telephoning from Arlington: Station, at Washington, to Hawaii, a distance of nearly 5000 miles. 1916—President Wilson and the Mikado of Japan exohanged messages over the new trans-Paoifio radio service, whioh was formerly opened. ' * 1917—Ssnatore Marconi visited the United States and aided greatly in recruiting for radio operations for tho United States army. .SIGNALS SENT TO AUSTRALIA. 1918 — Wireless telephony progressed rapidly, being used to'a great extent in the equipment of aeroplane©. Several new long range stations were erected in the United States, it being claimed for one built at Annapolis, Md., I tb*t it was capable of communication at 4000 miles. Tho United States Governi ment also opened a high-power station at Bordeaux. In September of this year, radio signals were sent from a. point 12,000 mfles away were received in Sydney, Australia-. 1919—With the exception of the three transatlantic fiights-^-that of U.S. NC-1. »nd the British flights of Alcock and Brown and the dirigible R-34, in which radio communication played an important part in keeping tho ships of the air on their courses—no -very great progress was made in radio telegraphy, although raflio telephony was being pushed along quietly. Restrictions ■ upon amateur receiving and sending wero lifted by the Amerioan Government. • ■ - RADIO TELEPHONE ACTIVITIES. 1920—This was the year.. of tho radio telephone, more attention probably being pa/id to this branch of radio than to its i older brother, telegraphy. Several broadcasting stations were opened along fcho Atlantic coast, and near the end of tho year the Westinghouse Electric and Manufacturing company opened radio broadcasting station KDKA at East Pittsburg for the broadcasting of nightly concerts. This station was the first of its kind. 1921—This yea-r waa another radio telephone year. It was marked by tho opening of numerous broadcasting stations. Westinghouse started three additional stations, one at Springfield, Mass., another fct Chicago and still another at Newark, N.J. The General Electric Company, tho Radio Corporation, and the Western Electric Company all opened broadcasting stations. A development of. the year was the forming of tho Radio Corporation of Ame. Rica, which is a consolidation of a> number of large electrical companies, for tho betterment of manufacturing facilities in regard to radio apparatus. Radio telephony came into its own during 1921, and many were the great possibilities predicted lor it. It wa-s accepted by a great number of engineers as the ■growing rival of tho teiophone.