Heinl radio business letter (July-Dec 1946)

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Heinl Radio News Service 9/11/46 Laboratories at Nutley, N.J., where the broadcast was received on Federal* s specially-designed receivers, the programs being repeated from 67 Broad Street for the group identically as they had been pre¬ sented earlier. It was explained that PTM, as it functions today, is a method of radio communication which involves the transmission of a series of short bursts, or pulses, each approximately one-half mil¬ lionth of a second long. Unlike previous radio systems, which oper¬ ate by modulating the strength or amplitude of the wave (AM), or its rapidity of vibration or frequency (FM), PTM waves remain con¬ stant in amplitude and frequency. As the name implies, the actual communication is achieved by varying the time interval between the pulses. XXXXXXXXXX CARL FARNSWORTH, BROTHER OF TV PIONEER, KILLED FLYING Carl Farnsworth, brother of Philo T. Farnsworth, founder of the Farnsworth Television and Radio Corporation, Fort Wayne, Indiana, died in a plane crash last Sunday outside of Coudersport, Pa. Mr. Farnsworth, 3 5 years old, of Freyeburg, Maine, was flying a new light plane and had as a passenger his brother, Lincoln, 31, who was also injured. According to the latter, they were obliged to make a forced landing. They were flying from Youngstown, Ohio, to Freyeburg when they ran into acloud bank. They tried to go above the clouds but failed and decided to come down on a farm near the Northern Pennsylvania town. Lincoln was removed to Coudersport Hospital where attend¬ ants said his injuries were not critical but that he was being detain' ed for observation. Carl Farnsworth is survived by his widow and four children in addition to his brother Philo T. Farnsworth. xxxxxxxx WARSHIP DESIGN ADAPTED TO RADIO GUIDED ATOMIC MISSILES Construction of the new 45,000-ton battleship KENTUCKY and the 27,000-ton battlecruiser HAWAII has been temporarily held up. They are to be redesigned as the first atomic age warships armed with main batteries of radio guided robots instead of guns. The theory is that the destructive power of capital ships can be increased enormously by far-reaching missiles aimed at the target by radio beams. XXXXXXXXXX 2