Radio age research, manufacturing, communications, broadcasting, television (1941)

Record Details:

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R. G. Meier checks camera that will record takeoff Dr. A. E. Hoffman-Heyden adjusts tracking apparatus As the final minutes pass, sirens are sounded at the launching site and all personnel except cameramen and key technicians take shelter inside the three-foot walls of the control building at the launching pad or within the huge Central Control Building. A voice counts the seconds over loudspeakers in the buildings — "X minus five - four - three - two - one —" and zero is lost in the roar of the flames that jet from the booster rocket as the firing button is pressed and the glittering missile shoots into the air. The telemeter equipment aboard the missile already has started to send in its information, and batteries of motion picture and still cameras have made their record of the launching. The radar tracking which will be continuous from the site has begun, and the Air Force F-80's and F-86's which follow the flight have slid alongside the missile as its booster rocket drops to the ground. Once the flight has ended, two more RCA groups play their special roles. The Photographic Laboratory, directed by M. T. Owensby, gathers in, develops, proc- esses and prints the thousands of feet of film that have been exposed, while the Data Reduction Branch reduces to usable graphs and charts the tape records of the flight that have been recorded electronically from the missile. These records, classified, organized and reduced to usable form, will give the manufacturer the informa- tion he needs to determine whether his missile is doing the job for which it was built. Once the records are completed, the job is done — until the next flight. Thus RCA, together with Pan American World Air- ways, is taking on another vital task in the interest of national security. Out of the experience of the Guided Missile Center may come not only the most eflfective weapons that modern science can build, but wider knowledge leading to the development of electronic surveying and computing techniques of inestimable value in the future to a society at peace. RCA Begins Deliveries Of Powerful TV Transmitter A 50-kilowatt television transmitter, the most power- ful yet produced by the Radio Corporation of America. was shipped from the RCA Engineering Products Divi- sion plant in Camden, N. J., in mid-February to Stations WMIN-TV and WTCN-TV, which will share its use on Channel 11 in the Minneapolis-St. Paul area. The new VHF (very high frequency) transmitter, used with a custom-built nine-section super-gain antenna already delivered by RCA, will place the stations among the most powerful television outlets in the country, boosting their effective radiated power to the 316-kilo- watt maximum allowed by the Federal Communications Commission. New amplifier and modulator circuit features assure maximum fidelity of both sound and picture transmis- sion, RCA engineers said. The transmitter has been designed to operate at altitudes up to 7,500 feet and in temperatures up to 113 degrees. Initial units of the 50-kilowatt transmitter have al- ready been shipped to a number of other stations throughout the country. RADIO AGE 9