On 9/4/2010 6:40 PM, Richard Evans wrote:
Drewdove wrote:

IMHO too many people laughed off complaints that the digital carriers
would
cause interference to first adjacent analogs without realizing these same
adjacent would interfere with the digital carriers rendering HD
useless in
certain (many?) situations.

As far as I'm concerned, allowing a signal to be broadcast, at a
frequency that is already allocated to something else, is always going
to be a bad idea (unless it is a system using very directional
antennas). From what I've read in this NG. HD-Radio does just that. It
ends up allowing digital signals to be transmitted on frequencies
already allocated to analogue signals. Whoever thought that would be OK,
obviously either doesn't understand radio, or simply doesn't give a sh*t
about the consequences.

Here's a book that you can read to understand how IBOC works (I mean if
you actually want to understand it).

"http://www.radioworld.com/article/8410".

SMS wrote:


Here's a book that you can read to understand how IBOC works (I mean if
you actually want to understand it).

"http://www.radioworld.com/article/8410".

Not especially interested in the details. But I'll take a look if I can
find the time.

I know how Reddifusion works.About ten years ago, that married Irish
woman (married to that Irish guy.She is from Cathair Chinn Lis,
[Caherconlish, to you] he is from Fethard. http://www.fethard.com
) wayyyyyy over yonder across the big pond explained it to me.First time
I ever heard of Reddifusion was in 1964 on my Hong Kong hotel room
radio, when I did my five days R&R in Hong Kong.
Wired Radio.
cuhulin

SMS wrote:


Here's a book that you can read to understand how IBOC works (I mean if
you actually want to understand it).

"http://www.radioworld.com/article/8410".

So I have to buy a book, and find time to read through it, to find out
about something I'm not especially interested in. Thanks for the link,
but I think I'll pass on this one.

In article ,
Richard Evans wrote:

SMS wrote:


Here's a book that you can read to understand how IBOC works (I mean if
you actually want to understand it).

"http://www.radioworld.com/article/8410".

So I have to buy a book, and find time to read through it, to find out
about something I'm not especially interested in. Thanks for the link,
but I think I'll pass on this one.

Don't worry...it isn't a "book". It is one of Radio World's usual
half-assed articles that pretends to be technical. Believe me, real
radio engineers don't learn from Radio World.

--
John Higdon
+1 408 ANdrews 6-4400
AT&T-Free At Last

John Higdon wrote:


Don't worry...it isn't a "book". It is one of Radio World's usual
half-assed articles that pretends to be technical. Believe me, real
radio engineers don't learn from Radio World.


And I don't need any book or article to know that 2 different radio
signals on the same frequency, is not a good idea.

On Sep 5, 10:54*am, Richard Evans
wrote:
John Higdon wrote:

Don't worry...it isn't a "book". It is one of Radio World's usual
half-assed articles that pretends to be technical. Believe me, real
radio engineers don't learn from Radio World.

And I don't need any book or article to know that 2 different radio
signals on the same frequency, is not a good idea.

IBOC : A Broadcast System : Designed To Jam
the Fringe-Distant Competition

It is the IBOC Signal that effects the Broadcasting
Radio Station Itself.

It's the IBOC Signal Side-Bands that effectively JAMS
Both the Adjacent Channels for 10+ kHz at 1%
and 20+ kHz at 10%

The result is AM/MW Radio DX is 'o-u-t' with IBOC
and Local AM/MW Radio Stations have a Lock-on
the Local Broadcast Market by JAMMING all the
Fringe and Distant Adjacent Channels by using IBOC.

IBOC a System that Allows you to Jam the next
door neighboring Metro Area's Radio Competition
right out of Your Local Radio Market

IBOC : A Broadcast System : Designed To Jam
the Fringe-Distant Competition

iboc - it's about business ~ RHF

On Sep 5, 4:32*pm, RHF wrote:
On Sep 5, 10:54*am, Richard Evans
wrote:

John Higdon wrote:

Don't worry...it isn't a "book". It is one of Radio World's usual
half-assed articles that pretends to be technical. Believe me, real
radio engineers don't learn from Radio World.

And I don't need any book or article to know that 2 different radio
signals on the same frequency, is not a good idea.

IBOC : A Broadcast System : Designed To Jam
the Fringe-Distant Competition

- It isn't the IBOC Signal that effects the Broadcasting
- Radio Station Itself.

It's the IBOC Signal Side-Bands that effectively JAMS
Both the Adjacent Channels for 10+ kHz at 1%
and 20+ kHz at 10%

The result is AM/MW Radio DX is 'o-u-t' with IBOC
and Local AM/MW Radio Stations have a Lock-on
the Local Broadcast Market by JAMMING all the
Fringe and Distant Adjacent Channels by using IBOC.

IBOC a System that Allows you to Jam the next
door neighboring Metro Area's Radio Competition
right out of Your Local Radio Market

IBOC : A Broadcast System : Designed To Jam
the Fringe-Distant Competition

iboc - it's about business ~ RHF
*.
*.

On 9/5/2010 8:31 AM, Richard Evans wrote:
SMS wrote:


Here's a book that you can read to understand how IBOC works (I mean
if you actually want to understand it).

"http://www.radioworld.com/article/8410".

So I have to buy a book, and find time to read through it, to find out
about something I'm not especially interested in. Thanks for the link,
but I think I'll pass on this one.

No, you don't have to do anything. If you were interested in
understanding the technology of IBOC rather than making uninformed
comments about it, it would be a wise thing to do. But apparently you're
content to talk about things you "know" that aren't actually true.
Whatever lights your board.

SMS wrote:


No, you don't have to do anything. If you were interested in
understanding the technology of IBOC rather than making uninformed
comments about it, it would be a wise thing to do. But apparently you're
content to talk about things you "know" that aren't actually true.
Whatever lights your board.

I know as much as I need to know.

Spectrally in efficient.
Causes interference to other services.
Is used at bit rates so low that sound quality can't possibly be
anything better than horrible.