** U S A. Strong rumor from allegedly reliable sources is that the FCC will be
making an across-the-board authorization for nighttime IBOC on MW within the
next two weeks. Better enjoy your nighttime MW listening and DXing while you
can. More and more ``clear`` channel stations have been testing it in the
daytime, and once they all start running it at night, large portions of the AM
band will be devoted to noise (Glenn Hauser, July 9, DX LISTENING DIGEST)

Thanks to 'Eduardo' and all the other beancounting dip****s out there!

HD/IBOC = QRM

dxAce
Michigan
USA

dxAce wrote:
** U S A. Strong rumor from allegedly reliable sources is that the FCC will be
making an across-the-board authorization for nighttime IBOC on MW within the
next two weeks. Better enjoy your nighttime MW listening and DXing while you
can. More and more ``clear`` channel stations have been testing it in the
daytime, and once they all start running it at night, large portions of the AM
band will be devoted to noise (Glenn Hauser, July 9, DX LISTENING DIGEST)

Thanks to 'Eduardo' and all the other beancounting dip****s out there!

HD/IBOC = QRM

dxAce
Michigan
USA

- Agree.. ANY way of filtering this out ?

On Mon, 10 Jul 2006 08:11:04 -0400, dxAce
wrote:


** U S A. Strong rumor from allegedly reliable sources is that the FCC will be
making an across-the-board authorization for nighttime IBOC on MW within the
next two weeks. Better enjoy your nighttime MW listening and DXing while you
can. More and more ``clear`` channel stations have been testing it in the
daytime, and once they all start running it at night, large portions of the AM
band will be devoted to noise (Glenn Hauser, July 9, DX LISTENING DIGEST)

Thanks to 'Eduardo' and all the other beancounting dip****s out there!

HD/IBOC = QRM

dxAce
Michigan
USA

Dwardo!

wrote:
dxAce wrote:
** U S A. Strong rumor from allegedly reliable sources is that the FCC will be
making an across-the-board authorization for nighttime IBOC on MW within the
next two weeks. Better enjoy your nighttime MW listening and DXing while you
can. More and more ``clear`` channel stations have been testing it in the
daytime, and once they all start running it at night, large portions of the AM
band will be devoted to noise (Glenn Hauser, July 9, DX LISTENING DIGEST)

Thanks to 'Eduardo' and all the other beancounting dip****s out there!

HD/IBOC = QRM

dxAce
Michigan
USA

- Agree.. ANY way of filtering this out ?

When the IBOC sidebands extend out into the signal you want to hear,
not really possible to "filter" without getting rid of the signal you
want.

Listening to the sideband with the least interference (e.g. the one
away from the IBOC station) helps some.

Some use of directional antennas (especially ones with deep nulls, e.g.
loops) has been succesful at my QTH.

Tim.

dxAce wrote:
** U S A. Strong rumor from allegedly reliable sources is that the FCC will be
making an across-the-board authorization for nighttime IBOC on MW within the
next two weeks. Better enjoy your nighttime MW listening and DXing while you
can. More and more ``clear`` channel stations have been testing it in the
daytime, and once they all start running it at night, large portions of the AM
band will be devoted to noise (Glenn Hauser, July 9, DX LISTENING DIGEST)

I should note similar strong rumors from allegedly reliable sources flew
around the time of the NAB Convention in April - and nothing happened.

I'm sure nighttime IBOC *will* be authorized eventually, but I'll
believe it when I see (hear) it!

(the fact that approval has taken this long leads me to believe there's
a major tug-of-war going on at the FCC, that there are large parts of
the staff that believe it's a REALLY bad idea. I don't *think* anyone
on the Engineering staff will quit over this approval but I won't be
stunned if it happens.)
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

wrote:
- Agree.. ANY way of filtering this out ?

Buy a HD radio.

Seriously.

The Boston Acoustics Receptor HD, when tuning *analog* stations, seems
largely immune to IBOC QRM from *digital* stations on adjacent
frequencies. The set uses digital signal processing of analog signals;
I might guess that it uses the opposite digital sideband to cancel out
the one that's interfering with the desired analog station.

In general, my experience has been that the Receptor HD is a pretty
decent analog radio, both AM and FM, if you give it a decent antenna.
(the antennas provided with the radio are crap) Of course, it is pretty
expensive as well!

Of course, the problem for the radio industry is that almost nobody
*has* a Receptor HD - when the interference cranks up, people will buy
XM or Sirius, put in a CD, or turn on the TV long before they'll buy a
HD radio.
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

wrote:

dxAce wrote:
** U S A. Strong rumor from allegedly reliable sources is that the FCC will be
making an across-the-board authorization for nighttime IBOC on MW within the
next two weeks. Better enjoy your nighttime MW listening and DXing while you
can. More and more ``clear`` channel stations have been testing it in the
daytime, and once they all start running it at night, large portions of the AM
band will be devoted to noise (Glenn Hauser, July 9, DX LISTENING DIGEST)

Thanks to 'Eduardo' and all the other beancounting dip****s out there!

HD/IBOC = QRM

dxAce
Michigan
USA

- Agree.. ANY way of filtering this out ?

No, because it apparently affects both sidebands pretty equaly. If one wants to
listen to a weaker adjacent channel from that running IBOC one is going to be in a
world of hurt.

I currently have that problem here with a station I used to listen to regularly on
790 that is now totally obliterated by the daytime IBOC from 780.

No can listen no more.

dxAce
Michigan
USA

dxAce wrote:
wrote:

I currently have that problem here with a station I used to listen to regularly on
790 that is now totally obliterated by the daytime IBOC from 780.

No can listen no more.
justs makes your hobby more chalenging why do you mind that?

but no you run into a set back and throw up your hands

dxAce
Michigan
USA

" wrote:

dxAce wrote:
wrote:

I currently have that problem here with a station I used to listen to regularly on
790 that is now totally obliterated by the daytime IBOC from 780.

No can listen no more.
justs makes your hobby more chalenging why do you mind that?

Challenging? Has nothing to do with challenging, 'tard boy.

Now go back in your hole.

dxAce
Michigan
USA

dxAce wrote:
** U S A. Strong rumor from allegedly reliable sources is that the FCC will be
making an across-the-board authorization for nighttime IBOC on MW within the
next two weeks. Better enjoy your nighttime MW listening and DXing while you
can. More and more ``clear`` channel stations have been testing it in the
daytime, and once they all start running it at night, large portions of the AM
band will be devoted to noise (Glenn Hauser, July 9, DX LISTENING DIGEST)

Thanks to 'Eduardo' and all the other beancounting dip****s out there!

HD/IBOC = QRM

dxAce
Michigan
USA

There will probably be a flood of formal objections, if not lawsuits,
to the FCC from stations being interfered with IBOC; the FCC has a
formal complaint process in place, that if it becomes necessary, the
station causing the interference can be forced to shut down the IBOC
transmission. Instead of posting rumors, wait and see, if this really
happens. I have checked most of the electronic stores on-line(Circuit
City, Best Buy, Radio Shack, etc.), and most of them only carry one HD
radio. I can't imagine there will be any public demand/interest in
IBOC, considering satellite radio, so stations will find out real
quickly, when they have lost 99% of their listener base, if IBOC ever
goes completely digital. Honestly, does iBiquity think they are going
to be able to obsolete the estimated 800 million analog AM/FM radios in
the US. As posted before, stations have turned off IBOC, because of
adjacent-channel interference to their neighbors.