Canadian Reginald A. Fessenden also receives a patent for a transmitter which would produce continuous waves the basis for AM radio. 1902 Permanent radio service in California The American Telegraph and Telephone Company establishes the first permanent radio link in the U.S., from Catalina Island to mainland California. Radio transmissions received at both stations are quickly passed on to the local newspaper and printed. In the early years of the 20th century, however, only simple signals, usually in the dots and dashes of Morse code, could be transmitted. This was called wireless telegraphy.
Radio telephony the ability to transmit words and voices without wires had yet to be developed.
He had previously transmitted voices a distance of 50 feet from his station at Brant Rock, MA, with an alternator-transmitter. This event is reported as one of the major turning points in the radio industry. 1913 Railway radio Experiments in wireless transmission on trains are conducted, with great success. 1914 Radio at war When war breaks out in 1914, the use of wireless telegraphy is not yet widespread. Furthermore, under the British Defense of the Realm Consolidation Act , the possession of a radio transmitter in Britain is restricted by law to the transatlantic service and the permission of the Postmaster General is required for the purchase, sale or use of any wireless technology.