Everyone keeps making wild claims about the NRSC-5 interference mask as a solid gold, definitive, incontroverable, iron clad, "FCC standard" as an excuse to allow broadcasters to hiss all over neighboring stations.
If this is so, please show me where this is in the FCC rules CFR Title 47 part 73 (or any other part). If it's not in the FCC rules, it's not a fully accepted FCC standard, and this leaves HD stations wide open to all kinds of grief from injured parties, including termination of all HD Radio broadcasting.
This would leave all those who bought HD Radios out in the cold.
It also makes all those masked spectrum analyzer photos irrelevent.
Hiding behind a mask is just a way to ignore the problem. The HD radio interference is real, and is being ignored.
> > I've been following this board for some time now. Some
> > credible arguments have been made about AM and FM IBOC,
> > not so credible.
> > I am a group owner and an engineer.
> > My group does not own shares in iBiquity. I don't have an
> > iBiquity exciter at any of my sites.
> > I am anti-IBOC for AM and in the "maybe" catogory for FM.
> > If they can make HD-2 or surround sound work, more power
> > them.
> > What has suprised me about the posts on this board, is the
> > number of people who attack the anti-IBOC guys asking for
> > proof that the system doesn't work....
> > Hey, wake up!!! If IBOC works as it should, show the
> > doubters proof that it does what iBiquity claims. Create
> > website...upload the pics from your specturm analyzer.
> > us see a nice clean pic of the signal.
> > There are many large broadcast groups who have an equity
> > interest in iBiquity.
> > Before you evaluate claims regarding IBOC success or
> > failure, you need to know whether the claimant is telling
> > the truth or just "pitching the party line."
> Are you familiar with the FM Mask that all IBOC station need
> to stay within? There ya have it. I can post a pic of the
> spectrum analyzer but it would look just like that mask.
> In regard to proof, the so called anti-IBOCers have been
> asked to show proof as well. All that comes up is a blog
> web site.
> HD2 is working now. I have one running myself and hope to
> bring another on up soon. As a matter of fact there are a
> few HD3 stations out there now.
> And because I work for one of those large companies, I have
> never been told to "Pitch the party line". And a couple of
> people here have supported me on that topic.
Edited by SuperSound on 03/08/06 12:19 PM.