** 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 ?

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.

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

"Doug Smith W9WI" wrote in message
...
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.


I doubt many people will buy IBOC radios for the presumed audio advantages.
The market for high fidelity AM has always been small and FM can sound
excellent as it is. However, there probably will be some public interest in
the secondary FM channels. And ibiquity's licensing arrangement demands
that any AM - FM radio must have IBOC decoders for both bands. There won't
be any standard AM - IBOC FM radios, at least according to the current plan.

So, in the future, there's a good chance there will be a significant number
of IBOC radios out there. I pretty much expect the AM broadcasters to
enthusisastically jump into IBOC AM, just like as jumped into AM stereo.

AM stereo never caught on. The buying public never much cared to buy the
radios. AM stereo came and went.

It would be ironic if the only way to avoid the IBOC sidebands is to buy
some damned ibiquity licensed radio.

Frank Dresser

"Frank Dresser" wrote in message
...


AM stereo never caught on. The buying public never much cared to buy the
radios. AM stereo came and went.


It was, due to Leonard Kahn, 5 years too late. When original introduced, it
would have made a difference as AM still had a majority of listening. By the
time a system was authorized, AM had "died" as a music medium.

"David Eduardo" wrote in message
. ..

"Frank Dresser" wrote in message
...


AM stereo never caught on. The buying public never much cared to buy
the
radios. AM stereo came and went.


It was, due to Leonard Kahn, 5 years too late. When original introduced,
it
would have made a difference as AM still had a majority of listening. By
the
time a system was authorized, AM had "died" as a music medium.



AM stereo didn't need Leonard Kahn to fail. The public never cared much
about it, Kahn nothwithstanding. But he did provide a convienient excuse.
If Kahn wasn't there to blame, it would have been some other damn thing.

To quote Alibi Ike:

"I coulda hit a homer, but I had a rock in my shoe."

Frank Dresser

Doug Smith W9WI wrote:
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.

DS [W9WI] - Yes in spite of the idea behind HD-IBOC
AM/MW Broadcasting as being the 'savior' of AM Radio.
Many DX {Out-of-Area} Listeners may simply Turn-Off
the AM Radio and Turn-On something else. ~ RHF

In the SF Bay currently I can hear many Out-of-Area
AM/MW {Analog} Radio Stations like :
Sacramento - KSTE 650 kHz and KFBK 1530 kHz
Fresno KRE 580 kHz
With HD-IBOC these AM Signals will be under the
Digital Signal Hash an no longer be able to be heard.
* With HD-IBOC these AM Signals will be under the
Digital Signal Hash an no longer be able to be heard.
* Local Only - HD-IBOC will result in about 30 AM
Radio Stations that could be heard easily with 6-7
of those being so close to the each other that the
number may even be smaller.

In the Twain Harte, CA currently I can hear many
Out-of-Area AM/MW {Analog} Radio Stations like :
Sacramento - KSTE 650 kHz and KFBK 1530 kHz
Fresno KRE 580 kHz
* With HD-IBOC these AM Signals will be under the
Digital Signal Hash an no longer be able to be heard.
* Local Only - HD-IBOC will result in about 9 AM
Radio Stations that could be heard easily.


--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

On 10 Jul 2006 14:36:39 -0700, "RHF"
wrote:



In the Twain Harte, CA currently I can hear many
Out-of-Area AM/MW {Analog} Radio Stations like :
Sacramento - KSTE 650 kHz and KFBK 1530 kHz
Fresno KRE 580 kHz
* With HD-IBOC these AM Signals will be under the
Digital Signal Hash an no longer be able to be heard.
* Local Only - HD-IBOC will result in about 9 AM
Radio Stations that could be heard easily.

The only stations I can get at night are KNX and a bunch of
out-of-market stations e.g. KGO and KKOH. (Yeah, I can get KSL and
KFBK, too, but they suck). KDWN has some choice moments on occasion.

David wrote:
On 10 Jul 2006 14:36:39 -0700, "RHF"
wrote:



In the Twain Harte, CA currently I can hear many
Out-of-Area AM/MW {Analog} Radio Stations like :
Sacramento - KSTE 650 kHz and KFBK 1530 kHz
Fresno KRE 580 kHz
* With HD-IBOC these AM Signals will be under the
Digital Signal Hash an no longer be able to be heard.
* Local Only - HD-IBOC will result in about 9 AM
Radio Stations that could be heard easily.

The only stations I can get at night are KNX and a bunch of
out-of-market stations e.g. KGO and KKOH. (Yeah, I can get KSL and
KFBK, too, but they suck). KDWN has some choice moments on occasion.

David,

In 5-10 years all you will be able to Hear is nothing but
hash, Hash. HASH ! from both short and long distance.

KFHK 1530 kHz from Sacramento, CA has the
"Rush-Re-Play" ) - For all those, who work
during the day and can not listen.
http://www.kfbk.com/pages/programschedule.html

KSL 1160 kHz from Salt Lake City, UT
Does have "When Radio Was"
http://www.radiospirits.com/onradio/wrw_future.asp
- Hosted by Stan Freberg
http://www.ksl.com/index.php?nid=312&sid=122030
Plus the "Twilight Zone on the Radio" Show
http://www.twilightzoneradio.com/

A GREAT IDEA !
Always thought a that the AM Radio Station
that 'replayed' "Coast-to-Coast AM" During the
Morning from 9-12 -or- during the Day from 12-3
would tap a unique Day-Time group of Listeners.

Radio - It's About Listening and Your Ears Don't Lie [.]

david - enjoy your radios ~ RHF