Frank Dresser schreef:

"Ruud Poeze" wrote in message
...

And that is the whole point.
At this end of the ocean the DRM consortium people really believe in a
replacement of analogue AM broadcasting to digital within "a couple of
years".
AM to FM took almost 40 years, and AM is still on, the advantages to FM
over AM are more spectacular than DRM over AM in a world where also FM
is available and the most popular band.
Actualy DRM is ruining the AM band and I dont like the idea of one
broadcasting band with 2 incompatable modulation systems.
DRM only causes a lot of noise on your receiver and is already
irritating the audience.

ruud

Digital modulation might fit within the same channel bandwidth as an analog
channel, but it's obvious to anyone who listens that it has much more
interference potential. Analog modulation normally puts only a small
percentage of power at the ends of it's allowed bandwidth, and that power is
intermittant. Digital modulation puts as much power at the ends of it's
spectrum as anywhere else, and the noise is continous.

Glenn Hauser has been reading reports from DXers blasting DRM. Among the
most prominent of these DXers is Ralph Brandi.

Frank Dresser

Indeed: DRM causes a lot of intereference if you are an analogue
co-channel user.
I think DRM is fine but outside the "analogue" broadcasting bands.
Or use the 26 Mhz band, which is unfit for SW.
ruud

Richard L. wrote:

In message
"Brenda Ann Dyer" wrote:

Digital radio and television are lame schemes, period. To get the same
quality as analog, you have to have a much wider bandwidth in digital.
Encoding schemes are ways of narrowing bandwidth required to broadcast, but
they all have some trade-offs. I've not been impressed with digital
satellite at all. Too much weather related dropout, and too much
pixelization, especially during fast scene transitions..


If you're getting weather-related drop-outs, it means your dish
installation is inadequate -- not big enough, not pointing in the
right direction, or suffering from water penetration.



Some of the pixelization is also due to the brodcasters using a data rate that is way too low. This and some of the other artifacts that result from the low data rate are quite annoying.

But they really can't be used to say Digital broadcasts are not a viable method. Some of the best images I've seen are also digitally broadcast.

It is not that it is digital that causes problems, it is poorly done digital that is the issue. Analog can also be done poorly or well. For example excessive compression and band limiting the audio just to get more punch.

Just my opinion,

craigm

"DAB sounds worse than FM" schreef in bericht
news:j60sc.33$VP5.8@newsfe4-win...
claimed that most radio listeners in the UK
would migrate to FM if given the chance. 5 KHz must sound like
crap.


It does. Digital radio also sounds crap when mis-used, but it can also
sound very good if implemented properly.

AM, FM and Digital radio can all sound good if implemented properly.

gr, hwh

"Frank Dresser" schreef in bericht
...


At any rate, a practical bandwidth of 10 KHz would be
a nice improvement.


Yeah, I think few broadcasters get near the maximum. But, considering the
average AM radio, why bother?

In Europe 10 kHz would be an improvement, nut not in the U.S. I guess.
And AM radio can sound very good with 10 kHz audio bandwith. (and a proper
receiver).

gr, hwh

"Brenda Ann Dyer" schreef in bericht
...
Digital radio and television are lame schemes, period. To get the same
quality as analog, you have to have a much wider bandwidth in digital.
Encoding schemes are ways of narrowing bandwidth required to broadcast,
but
they all have some trade-offs. I've not been impressed with digital
satellite at all. Too much weather related dropout, and too much
pixelization, especially during fast scene transitions..

In many cases the problems are not caused by the digital systems, but by the
use of them. Too many stations on a DVB-multiplex cause pixelation. Too many
stations on a DAB multiplex cause distortion.
DRM and IBOC cause interference to analog stations.

gr, hwh

Brenda Ann Dyer wrote:
Digital radio and television are lame schemes, period. To get the same
quality as analog, you have to have a much wider bandwidth in digital.

Seems to be a personal thing. Some people are far more sensitive to
some compression schemes than others.

Myself, I think ATSC digital TV looks a lot better than the NTSC analog
broadcast in the same 6MHz bandwidth. I do have some co-workers who
really notice the MPEG compression artifacts, but I'm not one of them...
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

"Doug Smith W9WI" schreef in bericht
...
Brenda Ann Dyer wrote:
Digital radio and television are lame schemes, period. To get the same
quality as analog, you have to have a much wider bandwidth in digital.

Seems to be a personal thing. Some people are far more sensitive to
some compression schemes than others.

Myself, I think ATSC digital TV looks a lot better than the NTSC analog
broadcast in the same 6MHz bandwidth. I do have some co-workers who
really notice the MPEG compression artifacts, but I'm not one of them...

It depends on how many digital stations are punt into the space previously
occupied by one analog station.
In Europe four will look ok, but five or six is too much. (but cheaper per
station)

gr, hwh

"hwh" schreef in bericht
...
It depends on how many digital stations are punt

Put, sorry

gr, hwh

"Richard L." wrote:
| If you're getting weather-related drop-outs, it means your dish
| installation is inadequate -- not big enough, not pointing in the
| right direction, or suffering from water penetration.
|
| --
| Richard L.

Wrongo, Limey-boy!

Study the physics of microwave propagation,
paying particular attention to moisture attenuation,
then get back with the group when you're up to speed.

More excuses from digital shills: It seems like they've got
an answer for everything!

73,

--
Steve Lawrence
KAØPMD
Burnsville, Minnesota

(NOTE: My email address has only one "dot."
You'll have to edit out the one between the "7"
and the "3" in my email address if you wish to
reply via email)


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"DAB sounds worse than FM" wrote:
| Now, you don't you go run along and play look for your penis beneath the
| roles of fat, lardboy?

Your obsession for my wedding tackle and waistline are duly noted,
but sadly (for you), I am a heterosexual. Perhaps you could start
a new newsgroup, something along the line of:

alt.queer.argumentative.pome

73,

--
Steve Lawrence
KAØPMD
Burnsville, Minnesota

(NOTE: My email address has only one "dot."
You'll have to edit out the one between the "7"
and the "3" in my email address if you wish to
reply via email)


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Checked by AVG anti-virus system (http://www.grisoft.com).
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