Nielsen Audio, formerly known as Arbitron, the United States-based company that reports on radio audiences, defines a "radio station" as a government-licensed AM or FM station; an HD Radio (primary or multicast) station; an internet stream of an existing government-licensed station; one of the satellite radio channels from XM Satellite Radio or Sirius Satellite Radio; or, potentially, a station that.
Nielsen Audio, nke a maara dị ka Arbitron, ụlọ ọrụ United States nke na-akọ banyere ndị na-ege ntị na redio, na-akọwa "redio" dịka AM ma ọ bụ FM; otu HD Radio; ihe ntanetị nke otu ụlọ ọrụ na-enye ikikere ọchịchị; otu n'ime redio redio satellite sitere na XM Satellite Radio ma ọ bụ Sirius Satellite Radio; ma ọ bụ, nwere ike ịnweta, ọdụ na-abụghị gọọmenti nyere ikikere.