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Old January 28th 05, 03:28 PM
Tr
 
Posts: n/a
Default Renaissance of MW SW radio

Digitalisation will initiate a world-wide renaissance of radio

By Erik Bettermann (specialist panel with the Director General of
Deutsche Welle in the context of Medientage München)

"Digital short-wave will revolutionise cross-border broadcasts and
will initiate a world-wide renaissance of radio". This
was the opinion of the Director General of Deutsche Welle, Mr Erik
Bettermann, during a panel discussion at
Münchner Medientage. Mr Bettermann, the head of the German
international broadcaster and instigator of the event
was not the only one to present an optimistic prediction of a
"Digital Global Radio" development: The other panel
specialists also emphasised the advantages of digitalisation in the
so-called AM range, i.e. short-, medium- and longwave.
The discussion was chaired by Peter Senger, Director of Distribution
at Deutsche Welle and Chairman of the Digital
Radio Mondiale (DRM) Consortium; and next to Erik Bettermann, BBC
representative Mike Cronk, Dan D'Aversa of
RTL Group and Phil Laven of the European Broadcasting Union (EBU) were
also participating in the debate.
Senger outlined the advantages of digital short-wave as follows: The
world-wide accepted DRM standard provided an
excellent audio-quality comparable to FM. In addition, the search for
frequencies was obsolete, as the station
identification tuned in to the designated frequency and automatically
switched to the best one. In parallel, it allows for
the sending of accompanying programme information such as text
messages.
"On top of everything, digital transmission technology saves a lot of
energy and costs compared to the analogue
one", Senger said. This would open up enormous opportunities,
especially for international broadcasters.
For several years, DW like many other broadcasters has noted that
listeners migrated from short-wave to FM or
other new distribution channels in digital quality, said Bettermann.
Deutsche Welle had to stay abreast of these
changes. "According to test transmissions being operated by Deutsche
Welle, we anticipate large area coverage in
almost FM quality without interference such as jitters, induced
power-noise or fading", the General Director stated. At
the same time, not only stationery indoor reception, but also mobile
reception in cars and with small portable devices
is possible.
Admittedly listeners would need new receivers. As a consequence, the
real challenge for the DRM consortium would
be to achieve successful implementation, said Technical Director of
the EBU, Mr. Philip Laven. The timetable for the
introduction of digital services in the AM bands would in fact be set
by broadcasters, "but the speed of the transition to
digital will be set by consumers", stressed Laven.
Dan D’Aversa of RTL Group sees the chance to develop pan-European
coverage and that RTL Group would try to
ensure "that low-cost DRM receivers will be on sale in time for
Christmas 2005".
Mike Cronk stated that the BBC had invested heavily in DRM and that
they were now developing "a detailed strategy
for its initial deployment, probably into Europe, in 2005". According
to Cronk, DRM offered the unique combination of
wide area short-wave coverage and FM usability and quality.
As a consequence of using this digital medium, continuous direct
delivery to the audience avoiding "political or other
regulatory obstacles" will be possible.
Bettermann, having also stressed the aspect of the impossibility to
censor short-wave and, focussing on European
implementation, announced that Deutsche Welle would gradually switch
off its analogue short-wave transmissions. A
pre-condition would be the world-wide availability of DRM receivers.
21 October 2004

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Old January 28th 05, 06:23 PM
 
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I really have my doubts about this "world-wide renaissance of radio".
The average user of radio and especially SW isn't likely to go
to the added hassle of DRM. I have played with DRM and
I am very underwealmed. DRM radios consume much more
energy, IE much shorter battery life, then analog. A lot of
users have no access to "made" electricity and have to
rely on batteries. The greater radio complexity also promises
greater user headaches.
Just my thoughts.
Terry

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Old January 28th 05, 06:47 PM
 
Posts: n/a
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I've read that speech a couple of different times in the past month,
and I think I finally know why I am bothered by it. The speaker
focuses on the benefits of digitalized broadcasts to the broadcaster
and largely (but not completely)ignores whether all of this will be of
any interest to the listener. It reads as though they don't really
understand who their listening audience is. A listner of limited
means in a poor country will hardly be in the position to buy a
potentially very expensive digital receiver. A listener who is more
well of financially will have access to information and music through
an increasing number of sources right now. How would a digital
shortwave and mw receiver improve either the quality of selection
available right now.


Tr wrote:
Digitalisation will initiate a world-wide renaissance of radio

By Erik Bettermann (specialist panel with the Director General of
Deutsche Welle in the context of Medientage M=FCnchen)

"Digital short-wave will revolutionise cross-border broadcasts and
will initiate a world-wide renaissance of radio". This
was the opinion of the Director General of Deutsche Welle, Mr Erik
Bettermann, during a panel discussion at
M=FCnchner Medientage. Mr Bettermann, the head of the German
international broadcaster and instigator of the event
was not the only one to present an optimistic prediction of a
"Digital Global Radio" development: The other panel
specialists also emphasised the advantages of digitalisation in the
so-called AM range, i.e. short-, medium- and longwave.
The discussion was chaired by Peter Senger, Director of Distribution
at Deutsche Welle and Chairman of the Digital
Radio Mondiale (DRM) Consortium; and next to Erik Bettermann, BBC
representative Mike Cronk, Dan D'Aversa of
RTL Group and Phil Laven of the European Broadcasting Union (EBU)

were
also participating in the debate.
Senger outlined the advantages of digital short-wave as follows: The
world-wide accepted DRM standard provided an
excellent audio-quality comparable to FM. In addition, the search for
frequencies was obsolete, as the station
identification tuned in to the designated frequency and automatically
switched to the best one. In parallel, it allows for
the sending of accompanying programme information such as text
messages.
"On top of everything, digital transmission technology saves a lot of
energy and costs compared to the analogue
one", Senger said. This would open up enormous opportunities,
especially for international broadcasters.
For several years, DW like many other broadcasters has noted that
listeners migrated from short-wave to FM or
other new distribution channels in digital quality, said Bettermann.
Deutsche Welle had to stay abreast of these
changes. "According to test transmissions being operated by Deutsche
Welle, we anticipate large area coverage in
almost FM quality without interference such as jitters, induced
power-noise or fading", the General Director stated. At
the same time, not only stationery indoor reception, but also mobile
reception in cars and with small portable devices
is possible.
Admittedly listeners would need new receivers. As a consequence, the
real challenge for the DRM consortium would
be to achieve successful implementation, said Technical Director of
the EBU, Mr. Philip Laven. The timetable for the
introduction of digital services in the AM bands would in fact be set
by broadcasters, "but the speed of the transition to
digital will be set by consumers", stressed Laven.
Dan D'Aversa of RTL Group sees the chance to develop pan-European
coverage and that RTL Group would try to
ensure "that low-cost DRM receivers will be on sale in time for
Christmas 2005".
Mike Cronk stated that the BBC had invested heavily in DRM and that
they were now developing "a detailed strategy
for its initial deployment, probably into Europe, in 2005". According
to Cronk, DRM offered the unique combination of
wide area short-wave coverage and FM usability and quality.
As a consequence of using this digital medium, continuous direct
delivery to the audience avoiding "political or other
regulatory obstacles" will be possible.
Bettermann, having also stressed the aspect of the impossibility to
censor short-wave and, focussing on European
implementation, announced that Deutsche Welle would gradually switch
off its analogue short-wave transmissions. A
pre-condition would be the world-wide availability of DRM receivers.
21 October 2004


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Old January 29th 05, 01:01 AM
 
Posts: n/a
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I know, I have one of the first Diamond Rio MP3
players (PMP300?) and it did well to run for 4 or
5 hours on a "AA" cell.
I treated myeself to a Rio Chiba, that has 8 times
the built in memory, and will run on a "AAA" for at
at least 20 hours. (I couldn't stand NPR or commercial
AM/FM radio any more and I can't see trying to put a
SW in a modern auto BTDT and still have the scrs!)
But having said that, I just don''t see a market big
enough to get the economies of scale to make it
practical. By the time that happens, the "third" world
will all have telephone and modest internet access.
A lot of 3rd wrold places already have very deep
cell phone penetration (I ownder why the market
guys came up with that word?)
Look at how many MP3 players have been sold.
Then look at how many SW radio have been sold
since radio began. I am willing to be a nice steak
dinner that MP3 players have the lead, or will very
soon. I know 30+ people who have MP3 players.
Now some like my sister have a PDA that also
is a MP3 player. I know, not counting the hams,
maybe 4 poeple who have SWs. And one is my wife.
The other 2 are people Ihave given my oldr rigs
(RF2000) and Sony ICF?-7600 to.
Everyone wnat a MP3 player.
Only us nuts want a radio that requires a "long antenna
wire".
I still think it is a whizbang technical solution looking for a
problem.

Terry

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Old January 30th 05, 04:44 AM
Joel Kolstad
 
Posts: n/a
Default

wrote in message
oups.com...
I really have my doubts about this "world-wide renaissance of radio".


I tend to agree, however...

The average user of radio and especially SW isn't likely to go
to the added hassle of DRM.


I think they will. Being able to punch in a frequency and get high quality
audio without fading, static crashes, etc. will sell people -- who can
afford it -- on the technology.

I have played with DRM and
I am very underwealmed. DRM radios consume much more
energy, IE much shorter battery life, then analog.


This is mainly a question of how well integrated the radio chipsets can be
made; very quickly you get to the point where powering the speaker itself
will dwarf the energy consumption of the radio itself. I expect the actual
DRM decoding can be done with well under 100mW, probably more like 10mW in
the near future. These are power levels that are easily obtained via solar
power.

The greater radio complexity also promises
greater user headaches.


I think it actually makes usage a lot simpler. What do you think's simpler
to use.. a cell phone, or an amateur radio hand-talkie operating on 2m
through a repeater autopatch?

I think the biggest stumbling block by far is going to be (1) getting
broadcasters to adopt the technology and (2) getting people in places that
have the most to gain from the receipt of such broadcasts the radios at a
price they can afford.

---Joel Kolstad


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Old January 30th 05, 04:47 AM
Joel Kolstad
 
Posts: n/a
Default

wrote in message
oups.com...
"A listner of limited
means in a poor country will hardly be in the position to buy a
potentially very expensive digital receiver."

I agree with you 100% -- hence the real challenge to make digital radios
dirt cheap. Interestingly, though, at a certain quality level digital
receivers actually become cheaper to build than analog receivers!


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