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| | FM Broadcasting History - Various Articles |
 | | Becoming the first FM station to start operating on a regular schedule under full-commercial authorization by the FCC, W47NV, Nashville, FM adjunct of WSM, on March 1 started a weekly schedule totaling 70 hours of FM broadcasting. |
 | | Its antenna, completely insulated from WSM signals, utilizes the 878-foot transmitter tower of WSM, and technical operation of both WSM and W47NV centers in the WSM transmitter house [Broadcasting, Dec. 15]. |
 | | The FM transmitter, designed by WSM Chief Engineer Jack DeWitt, is said to utilize a new method of generating Armstrong wide-swing FM signals and was custom-built under the direction of the WSM engineering staff. |
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