Heinl radio business letter (July-Dec 1946)

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Helnl Radio News Service 7/24/46 FCC TO ASSIGN "GUARD FREQUENCY" FOR LOW-BAND FM In assignment of specific frequencies to non-Gove mment fixed and mobile services, the Federal Communications Commission in its latest action affecting frequency modulation broadcasting, has stipulated that frequency assignments in the 42-44 megacycle band will be undertaken in such a way that an FM station still broadcasting in that band will be protected until January 1, 1947, through provision of an 800 kilocycle guard band about its center frequency in the area in which it is located. The Commission noted that as soon as receivers for the new FM band of 88-108 megacycles are generally available, it is not expected that stations will use the lower frequency and there will no longer be need for the guard bands. In any case, however, the FCC stressed, the 42-44 mega¬ cycle band is to be cleared for nonGovernment fixed and mobile operations no longer than next January 1st. Before that time the FCC will consider whether FM broadcasting stations, now operating in the lower frequency, shall be authorized temporarily to continue low^-band operations or whether they shall be required to confine transmissions exclusively to the 88-108 megacycle band, xxxxxxxx TELEVISION IS GOING TO THE IOWA STATE FAIR Television will go to the Iowa State Fair on August 21 to 30th when International Harvester and Station KRNT will present an extensive series of television programs in cooperation with RCA Victor. For the first time RCA* s new Image Orthicon television cameras, the type used In the coverage of the Louis-Conn fight, will be shown in a field demonstration of closed circuit television. Prize winners of all sorts will be shown on the varied series of State Fair programs which the cameras will be able to record even in dim light. The television crew of ten technical and programming experts from RCA Victor, headed by Dick Hooper, Shows and Exhibitions Manager of RCA, will also cover horse races, stock shows and other principal events. Chester Davis, Chief Engineer for the demonstration, will supervise the technical aspects of the shows and programming will be under the direction of Joseph A. Jenkins, Production Manager for the show. In addition to the complete studio facilities which will be exhibited at the show, RCA Victor will install 12 television home r eceivers including several experimental large-screen projection models, XXXXXXXXX 7