David wrote:

On Tue, 11 Sep 2007 14:09:05 -0700, wrote:

Your old radios will still work; the high-definition (HD) signal
that's currently in use is compatible with good old-fashioned AM
receivers. This is because the digital information is placed (in
frequency) above and below the analog signal. There are couple of HD
stations here in the Washington DC area, and on any AM receiver I've
used so far, including my antique tube radios, this digital "hash" has
not bleed through to the audio stages. When accurately tuned to an HD
station, the voice and music sound just as it always has.

That's total BS. All the highs are gone.

I seem to have noticed that to some extent on WLS 890 out of Chicago. Perhaps
Mr. Maus, who is closer in can give us his experience with that.

On Sep 12, 8:54 am, dxAce wrote:
I seem to have noticed that to some extent on WLS 890 out of Chicago. Perhaps
Mr. Maus, who is closer in can give us his experience with that.

That's most likely because you're trying to squeese "hi-fi" into +/- 5
khz worth of bandwith.
It's why your audio's going to sound like a crunched up Real-Audio
stream.

http://www.nrscstandards.org/DRB/Non...tal_Report.pdf

Stephanie Weil
New York City, USA

dxAce wrote:

I seem to have noticed that to some extent on WLS 890 out of Chicago. Perhaps
Mr. Maus, who is closer in can give us his experience with that.




Not really. Too much digital noise at my location for an accurate read.