Dr. De Forest's Experiments.

Progress, Volume IV, Issue 1, 2 November 1908, Page 17

Dr. De Forest's Experiments.

That Pans and New York will within two years be in direct wireless telephonic communication is the expectation of its American inventor, Dr. Lee De Forest. A contract was signed last June between his company and the Metropolitan Life Insurance Company, providing for the installation at the top of the 700 ft. tower of the latter' s new building in Madison Square of an apparatus which may ultimately transmit and receive messages to and from the Eiffel Toner. At present Dr. De Forest estimates that the radius of his apparatus, when installed at an adequate height, is about 1000 miles, but he is now working at certain improvements which he thinks will make possible Transatlantic communication. He expects to have the installation on the Metiopolitan tower ready by the end of the year, and his first object will be the sending of bulletins to ships equipped with the radiotelephonic aid telegraphic apparatus. In regard to the possibility of the interference by this service with other wireless messages, Dr. De Forest says that the length of the wire which he means to install will admit of the employment of a wave of a length long enough to be inaudible hj any ordinary apparatus unless specially tuned to catch it.