dumber than a box of hair said:
This inquiry is about HD radio's end-game. They've now effectively admitted that 1) the transmitting end doesn't work the way it was originally designed, so they have to run to the government for help, and 2) the receivers are selling hardly at all, so they have to run to the government for help. Hardly the signs of a system being either accepted by the public or performing properly for broadcasters. If one or both of these cries for help don't pass muster with the best regulatory agency money can buy, stick a fork in iBiquity, the HD Alliance and HD radio...they're done.
They were done before they started, bad technology, the worst I've ever heard of. The sound is not much improved, some would call it shrill, receive distance is cut way down and adjacent interference all add up to the lead balloon we have seen and will continue to see no matter how much and how the rich broadcasters try to shove it down our throats.