A recent article written by Mike Starling and myself in Current was reprinted here on this blog where it has drawn to date five comments, all critical (well, at least that’s better than the spam comments I have to delete each week).
The most interesting of these mentioned FMeXtra, a subcarrier based digital radio technology offered by VuCast. I think (corrections, please), that the only receiver is offered by VuCast and only a handful of stations in the U.S. and Europe are broadcasting it. It’s had nowhere near the marketing investment of HD Radio, so unless you’re reading the broadcast engineering trade pubs, you may not be aware of it. The technology can apparently co-exist on the same transmitter with HD Radio, does have certain advantages, and is or will be used by radio reading services in Minnesota.