The Birmingham age-herald., 1915-09-30
Radio Station at Arlington, Va., Communicates With
 Mare Island Station
NAVAL EXPERIMENTS
 PROVE SUCCESSFUL
New Invention May Revolutionize Long Distance Communication. Sound May Be Transmitted From
 Ordinary Phone to Atmosphere

Washington, September 2s.--Long dis tance wireless telephone communication was accomplished for the first time to- day when experiments extending over
 several months culminated in success ful transmission of the human voice by radio from Arlington. Va. to Marc
 Island, Cal, 2500 miles away
 The experiments were conducted un-
 der direction of Captain Bullard, chief
 of the navy's radio service In co-opera- ton with the American Telephone and
 Telegraph company and the Western
 Electric company. secretatry Daniels.
 announcing the result tonight. pre-
 picted that further development of wireless telephony would make great
 changes in long distance communica-
 ton, both military and naval service
 and in commercial usage
 Successful operation of n device for
 automatically transferring to the radio telephone conversations originating on wire circuits also was accomplished. President Theodore N. Vail and other officials of the American Telephone and Telegraph company, at New York, talked easily with the Mare Island sta- tion. the conversation travelling over an ordinary metallic from New York to Arlington and thence by radio across the continent
 Sound Transmitted From Wire to Air The fact that the voices can bs
 started on a land wire and automatical- ly transmitted to voice radio trans- hitter" said Secretary Daniels. holds out hope that persons inland should readily be put In touch by telephone with others at sea through some central transmitting station"
 The navy departments formal an- lnouncement follows:
 Secretary Daniels Is pleased to an- nounce the successful outcome of ex- periments which have been carried on for the past few months by tho Ameri-
 can Telephone and Telegraph company
 and Western Electric company In co operation with radio stations under
 Jurisdiction of the navy department by
 which long distance wireless telephony
 has been made possible.
 To-day, September 29, speech was sue cessfully transmitted from the Arling- | ton radio station to the radio station at Mare Island, California, and there l successfully received, thus making pos- sible conversation without wires over
 a distance of approximately 2500 miles,
 the first time this great distance has been covered by wireless telephony. In the first experiments today the voice
 was successfully transmitted by radio to Mare Island from Arlington to re- turn answers and communications be- 1 n U mi a ha tf.ap mi In tai In ' d telephone line. This was successfully | accomplished in the presence of officials and engineers of the Western Electric company, a representative of the signal corps of the army, representatives of the technical and operating depart
 pertinent of the navy department and few other interested parties. Successful Demonstration After this successful demonstration, conversation originating in New York
 was transmitted over the land line to Arlington. there automatically con- nected to the radio transmitter which carried the voice to Mare Island, where | 1t was clearly and distinctly received. The conversation was carried on by the president of the American Telephons
 and Telegraph company, Mir. Vail; the vice president. MT. Bethell and MT. Waterbury. one of the directors. while at Mare Island were officials of the navy department. MT. John j. Carty, chief engineer of the telephone com pany, and representatives of the West ern Electric company. Every official taking part In this demonstration is en- thusiastic about the results and the possibility of developing this system as an extension of the telephone system to ships at sea.
 "The use of such long distance wire less telephone communication in naval or military operations Is still in an un- developed state, but 1t Is expected valua- ble use can be made of this wonderful demonstration. But aside from such con alterations the department and its of have been interested co-operators in the
 first practical development of this latest
 march in the wonderful science of radio
 communication"