In May, the FCC officially adopted rules for HD Radio allowing broadcasters to add HD mulitcast channels without the agency’s prior approval. The final rules authorizing IBOC/HD Radio have no been published in the Federal Register. The big news: AMs will be able to keep their HD signals on full-time beginning 9/14. FM broadcasters that want to add multicast HD channels can officially do so without experimental authorization as well on 9/14.
*Information from radio-online.com
