Has anybody seen any construction articles related to HD radio receivers?
From what I've heard, it is more software than hardware but might be
interesting to tinker with.
I found some white papers on the technology on the ibiquity website.
http://www.ibiquity.com/broadcasters...c_white_papers

Oppie

"Oppie" wrote in message
...
Has anybody seen any construction articles related to HD radio receivers?

I doubt you'll see any at all soon. As far as I can tell, the only way to get
the HD radio codec spec out of iBiquity is to sign a licensing agreement with
them, which requires paying royalties if you start building radios and
precludes your releasing the spec to anyone else. Hence, you won't be seeing
any, e.g., GNU Radio projects relating to HD radio any time soon...

"Joel Kolstad" wrote in message
...
"Oppie" wrote in message
...
Has anybody seen any construction articles related to HD radio receivers?

I doubt you'll see any at all soon. As far as I can tell, the only way to
get the HD radio codec spec out of iBiquity is to sign a licensing
agreement with them, which requires paying royalties if you start building
radios and precludes your releasing the spec to anyone else. Hence, you
won't be seeing any, e.g., GNU Radio projects relating to HD radio any
time soon...


If the technology is everything that they are advertizing it is, somebody
will hack it. I haven't listened to one of the HD radios yet but most of the
broadcasters in the metro New York City area are transmitting with it. Right
now, I find it annoying as hell as most of the HD broadcasts make a
background whine in my 2001 Saturn (premium) car radio.
Oppie

Oppie wrote:
"Joel Kolstad" wrote in message
...
"Oppie" wrote in message
...
Has anybody seen any construction articles related to HD radio
receivers?

I doubt you'll see any at all soon. As far as I can tell, the only
way to get the HD radio codec spec out of iBiquity is to sign a
licensing agreement with them, which requires paying royalties if
you start building radios and precludes your releasing the spec to
anyone else. Hence, you won't be seeing any, e.g., GNU Radio
projects relating to HD radio any time soon...


If the technology is everything that they are advertizing it is,
somebody will hack it. I haven't listened to one of the HD radios yet
but most of the broadcasters in the metro New York City area are
transmitting with it. Right now, I find it annoying as hell as most
of the HD broadcasts make a background whine in my 2001 Saturn
(premium) car radio. Oppie

Here's a test. :-) What does HD stand for?

"Anthony Fremont" wrote in message
...
Here's a test. :-) What does HD stand for?

Hybrid Digital. I the time when it officially "stood for nothing" after the
marketing guys at Ibiquity realized that trying to make it stand for "high
definition" wasn't going to fly even with the best Madison Avenue advertising
campaign behind it.

Joel Kolstad wrote:
"Anthony Fremont" wrote in message
...
Here's a test. :-) What does HD stand for?

Hybrid Digital. I the time when it officially "stood for nothing"
after the marketing guys at Ibiquity realized that trying to make it
stand for "high definition" wasn't going to fly even with the best
Madison Avenue advertising campaign behind it.

Yep, notice how they hype "HD" "HD" "HD", but they never really say Hybrid
Digital....not ever.....not even once...... It's obvious that they hope
that everyone will make the mistake of assuming that it stands for "High
Definition". I think their plan is working. :-(

On Tue, 10 Apr 2007 08:16:52 -0400, "Oppie"
wrote:

"Joel Kolstad" wrote in message
...
"Oppie" wrote in message
...
Has anybody seen any construction articles related to HD radio receivers?

I doubt you'll see any at all soon. As far as I can tell, the only way to
get the HD radio codec spec out of iBiquity is to sign a licensing
agreement with them, which requires paying royalties if you start building
radios and precludes your releasing the spec to anyone else. Hence, you
won't be seeing any, e.g., GNU Radio projects relating to HD radio any
time soon...


If the technology is everything that they are advertizing it is, somebody
will hack it. I haven't listened to one of the HD radios yet but most of the
broadcasters in the metro New York City area are transmitting with it. Right
now, I find it annoying as hell as most of the HD broadcasts make a
background whine in my 2001 Saturn (premium) car radio.
Oppie


Isn't "Saturn (premium)" an oxymoron ?:-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

America: Land of the Free, Because of the Brave

"Jim Thompson" wrote in
message ...
On Tue, 10 Apr 2007 08:16:52 -0400, "Oppie"
wrote:

SNIP I find it annoying as hell as most of the HD broadcasts make a
background whine in my 2001 Saturn (premium) car radio.
Oppie


Isn't "Saturn (premium)" an oxymoron ?:-)

...Jim Thompson

Now don't get all uppidy on me James. It is a very nice, loaded, LW300 that
was a fleet lease. I got it with 40K on it and two years old for about $10K.
Got almost 100K miles on it now and the only repairs it has needed were
brakes, tires, one O2 sensor and a MAF (surprisingly, only about $100).
Water pump just went and I had the timing belt changed at the same time
since it was due. Stock audio system and it has a pretty good sound.
http://www.theautochannel.com/vehicl...ergap0103.html

Of course, when Saturn got called home the the GM fold, the L series was
cancelled as it competed with other GM lines. The L series was designed in
Germany by Opel. The engine is the same one used in the Cadallac Catera, the
L81, 3Liter V6, 24 valve, DOHC.

Doesn't cary as much as your pick-em-up truck but I do have a class 1 hitch.
grin

Oppie

Oppie wrote:

"Jim Thompson" wrote in
message ...

On Tue, 10 Apr 2007 08:16:52 -0400, "Oppie"
wrote:


SNIP I find it annoying as hell as most of the HD broadcasts make a

background whine in my 2001 Saturn (premium) car radio.
Oppie


Isn't "Saturn (premium)" an oxymoron ?:-)

...Jim Thompson


Now don't get all uppidy on me James. It is a very nice, loaded, LW300 that
was a fleet lease. I got it with 40K on it and two years old for about $10K.
Got almost 100K miles on it now and the only repairs it has needed were
brakes, tires, one O2 sensor and a MAF (surprisingly, only about $100).
Water pump just went and I had the timing belt changed at the same time
since it was due. Stock audio system and it has a pretty good sound.
http://www.theautochannel.com/vehicl...ergap0103.html


That's a bit early for a water pump and sensor to go. My Mits is 10
years old now and the Toyota is even older. None of that has ever
happened. Same on my Audi Station that I sold at about 100K Miles. Got a
lot more on it now with the new owner yet nothing broke. Ok, a fender
did because a food service truck driver backed up a bit fast and ka-crunch.


Of course, when Saturn got called home the the GM fold, the L series was
cancelled as it competed with other GM lines. The L series was designed in
Germany by Opel. The engine is the same one used in the Cadallac Catera, the
L81, 3Liter V6, 24 valve, DOHC.

Doesn't cary as much as your pick-em-up truck but I do have a class 1 hitch.
grin


I had a L300 rental once. Nice ride. Except that the kind of tires on it
was a bit iffy and one promptly blew out on me :-(

--
Regards, Joerg

http://www.analogconsultants.com

"Oppie" wrote in message
...
If the technology is everything that they are advertizing it is, somebody
will hack it.

The technology looks to be OK, but it's nothing any decent group couldn't cook
up on their own: They use OFDM and some standard CoDecs, the "proprietary"
part is just in how they put together the entire bitstream and multiplex it
amongst the carriers. I agree that -- in all likelihood -- sooner or later
someone will hack it. Heck, if HD Radio *does* catch on, there's a good
chance that a well-funded Chinese engineering group will do so! (Plenty of
money to be made selling cheap radios...)

I haven't listened to one of the HD radios yet but most of the broadcasters
in the metro New York City area are transmitting with it. Right now, I find
it annoying as hell as most of the HD broadcasts make a background whine in
my 2001 Saturn (premium) car radio.

Yeah, the whole idea of, "we'll jus stick this spread signal off in the far
sidebands of the regular FM channel, and it'll just be a bit of noise that
traditional radios won't hear" is predicated upon the notion that those
"traditional" radios will somehow start having much sharper IF filters than
they often do, or that the listener simply won't object to the whine.

---Joel