Broadcast

摘要

TV analog broadcast auxiliary service licensees don't need to file a change in emission designatornwhen using encoding-decoding equipment to deliver a digital signal over an analog link, Stephen Buenzow,ndeputy chief of the FCC Wireless Telecommunications Bureau's Broadband Division, wrote in a letternreleased Wednesday (http://bit.ly/XNeI91). The letter was in response to a request for a declaratorynruling on the question made by the Engineers for the Integrity of Broadcast Auxiliary Services Spectrum.nSome TV stations use the practice to deliver digital signals from their studios to transmitters and from thenfield to the studio using microwave links, the letter said. "We find that when a transmitted emission continuesnto be frequency modulated and is contained in the bandwidth limits specified for frequency modulation,nand there are no modifications to transmitter circuitry, a change in the emission designator is not necessary,"nthe letter said.