> > If someone is listening to 107.3 and switches from
> > traditional analog to the primary HD signal, they will
> > simply hear a simulcast of WAAF. No change in cume or
> > quarter-hour there.
> >
> > However, with multicasting, two or three ADDITIONAL
> HD-only
> > channels can be squeezed in ALONG WITH the main HD
> > simulcast. These channels will carry completely seperate
> > programming, so, yes, these independent feeds will impact
> > WAAF's ratings.
>
>
> Not just AAF. Anyone who multicasts. How will that be sold
> as advertising? Who's job gets lost when you lose 40% of
> your audience to the secondary signal?
>
> These are real questions that might have to be answered
> pretty quickly.
>
They are real questions, yes, but they're not going to be answered anytime soon. There will be a long, ugly battle over it first.
For example, some advertisers are going to insist that since their ad value is diminished by the pool of "WAAF listeners" (I'm oversimplifying, but bear with me) being split three ways: the main analog/HD signal, and two additional HD-only "multicast" signals.
As such, they're going to demand that either their ad gets played on all multicast channels, or that their ads cost less. I smell blood in the water.
Exactly how that breaks down will no doubt be a long and drawn out battle. The existing "value" of advertising is really a gentleman's arrangement based on quasi-scientific (at best) Arbitron measuring. Really it's more that "we've done it this way for 40 years" than anything else. Spots in the world of HD Multicasting doesn't have that history to fall back on.
Of course, HD Radios themselves are few and far between at the moment, and the early models are not Multicast-capable (unless you got an cheaper-than-new upgrade, which last I checked Kenwood stopped doing that over the summer). There's new reports that the release of the majority of the HD Radios promised at NAB last April will not make it to market until January at the soonest. And I think that's being optimistic given how many questions about the "almost-a-standard" the NRSC set in April, too.
So that's a Christmas season down the toliet. Ergo, another year before any sort of real sales of HD Radios start. Precious few auto manufacturers have committed to putting HD Radios in their vehicles, too. And while maybe a quarter to a third of non-translator stations out there have installed HD or committed to doing so (and that's probably being optimistic) a far smaller number have Multicast-capable systems...much less any sort of real programming on those extra channels.
HD Radio has a lot of promise (admittedly more for FM than AM) but it's very much a work in progress. I do worry that by the time it gets figured out the iPod generation will have already forgotten about AM/FM; making it very hard to ever get them back no matter how many technological advances HD gives us.