"Frank Dresser" wrote in message
...
On Sat, 16 May 2009 20:57:56 -0700, David Eduardo wrote:

HD got the development money first. That should be an advantage.

WiMax is developed and deploying; a number of markets are on the air under
ClearWire technology.

There are plenty of things on the "old" agenda that are not going to
happen due to the economy, and HD is just one of them.


If HD radio actually served a mass market, then, by now, it would be
sufficiently established that the poor economy would only be delaying HD
radio's potential competitors.

It took FM over 3 decades to develop. While the HD2 concept came mostly from
the NPR affiliates who wanted more programming, the opportunities in
specialized, second tier formats do exist. Whether the economy will allow
that to be developed remans to be seen.

How many current stations even approach the limits of dynamic range of
FM? Here, there were a couple of classical stations, but one has been
gone for a few years.

They can't, mostly because of noise floor concerns in the listening
environment. In the case of the HD1 channel, there is an option for quieter
environments now.

Since this is a DXer's forum, shouldn't HD radio discussions be taken to
mean AM IBOC by default, rather than FM?

There is no FM DX? That's now one of the more interesting areas of DXing.

And how about the sound of HD AM?

It is good, but the issue is audio sources. News stations that use cellulars
and other compressed sources for reports can sound horrible because of the
addition of different codecs.

The real issue is that AM, on today's receivers and in today's noisy
environment, is dying and is very old technology.