It's taken years to overcome all the false iBiquity propaganda, but at last some of us are looking at the same page.
The iBiquity AM or FM HD Radio system is a defective, destructive, problematic, unnecessary, expensive, proprietary system that causes far more harm then any possible good. It is not compatible with current AM and FM station assignments, and therefore should not get final FCC approval. In fact, FCC interim authority should end. The HD Radio iBiquity system does not meet any of it's claims, specs, coverage, or promises, and it insidiously invades adjacent channels with jamming buzz. It holds no promise for the future, as bandwidth will not be reduced when the analog is dropped, and therefore power can not be increased without creating vast, buzzing, multi-channel, interference zones between stations.
FM has a built in "capture ratio" that has been taken into account in the assignment of FM stations. Pure digital transmission has no such advantage. The bits just get scrambled and jam each other, in a vast buzz zone.
FMeXtra is
the HD digital answer, and future of FM.
www.dreinc.com
If some broadcasters bought the toxic, fraudulent, hype pumped out by the HD Radio peddlers to sell this problematic system, then they should return it for a full refund. It was totally misrepresented.
After all we now have until 2010 before the big "HD Radio rollout" begins.
Tell HD Radio to "buzz off" until then.
Keep in mind the iBiquity HD Radio systrem requires a much wider RF front end in recievers then FMeXtra.