Does Australia really want Digital Radio?
http://www.aussieseek.com
March 01, 2008 01:07AM
Ten years after the introduction of digital radio in Europe, Australia
is only seven months away from having its own system.
Commercial Radio Australia, the group behind the push for digital
here, says this will be a significant milestone in broadcasting
history.
But overseas digital radio has had limited success.
In both the US and UK digital is faltering, so can the Australian
version avoid failure before it even hits the airwaves?
Davide Crisante reports.
http://www.aussieseek.com
wrote:
With the right technical set up
YES
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
If You are like minded please sign this IARBA Petition and join us in
asking the Minister and the ACMA to reverse the previous governments
unfair ban on new entries to Digital radio. With the inclusion of DRM
theres plenty of room for left out community stations narrowcast and
narrowband and new entrants.
Senator the Hon
Stephen Conroy
Minister for Broadband,
Communications and the
Digital Economy
DEPUTY LEADER OF THE
GOVERNMENT IN THE SENATE
Suite MG70
Parliament House
Canberra ACT 2600
Dear Sir,
We the digitally undersigned ask that in the interests of media
diversity, fairness and good planning that you reverse the the
previous governments unfair ban on new entries into Digital radio.
We ask that you consider a two-tiered Digital Radio implementation
that includes the DRM Standard so that country areas will not be left
out of access to Digital Radio. As you may be aware DAB Plus performs
poorly outside metropolitan areas.
We ask that DRM be included both for those broadcasting stations left
out of current DAB Plus proposals: existing community stations,
narrowcasters, narrowband stations and also that it be included for
new entrants.
We also ask that in any strategy that your department undertakes to
promote Digital Receivers, that any such promotion includes those
models that can receive both the DAB Plus and DRM Standards.
DRM can fit 8 CD-quality stations into the same amount of bandwidth
that DAB uses. DRM is the worlds only, open standard, universal,
digital on-air system. Peter Senger, Chairman of DRM: "DRM is a great
way to enjoy not only international radio stations, but also some
local and national radio. In many countries, particularly those with
large rural areas, the combination of DRM and DAB gives broadcasters a
tailor-made way to upgrade to digital radio and give their listeners
access to a greater range of stations than ever before."
To sign our Petition go to
DTVAUST
http://www.aussieseek.com" <nswa...@yahoo.com> wrote:
> DRM can fit 8 CD-quality stations into the same amount of bandwidth
> that DAB uses.
> DRM can fit 8 CD-quality stations into the same amount of bandwidth
> that DAB uses.
Why do you persist in continually restating this when it is patently
untrue?
the compression codecs used by DAB+ and DRM are the same. The
bandwidth per station is identical for the same quality.
DRM CANNOT fit 8 stations in one signal which is what you imply
with the statement as the maximum is basically 2 with reduced quality.
As DRM basically uses a separate channel per station and needs at
least
20 Khz for "CD" quality where is all the extra spectrum going to come
from?
Be real!
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
The minister advises that the acma
will invite submissions later this year
and space has been reserved for DRM trials.Nothing will stop that not
even the CRA.The new government i not as eadsy to lobby as the last.
In the meantime dig your own grave
with solus dab plus
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
http://www.aussieseek.com" <nswa...@yahoo.com> wrote:
> On Mar 9, 10:35 am, DTVAUST <100246.2...@compuserve.com> wrote:
>
>
>
> > On Mar 8, 9:55 am, "Spam Free aus.radio.broadcast.moderated
>
> >http://www.aussieseek.com" <nswa...@yahoo.com> wrote:
> > > DRM can fit 8 CD-quality stations into the same amount of bandwidth
> > > that DAB uses.
> > > DRM can fit 8 CD-quality stations into the same amount of bandwidth
> > > that DAB uses.
>
> > Why do you persist in continually restating this when it is patently
> > untrue?
>
> > the compression codecs used by DAB+ and DRM are the same. The
> > bandwidth per station is identical for the same quality.
>
> > DRM CANNOT fit 8 stations in one signal which is what you imply
> > with the statement as the maximum is basically 2 with reduced quality.
>
> > As DRM basically uses a separate channel per station and needs at
> > least
> > 20 Khz for "CD" quality where is all the extra spectrum going to come
> > from?
>
> > Be real!
>
> The minister advises that the acma
> will invite submissions later this year
> and space has been reserved for DRM trials.Nothing will stop that not
> In the meantime dig your own grave
> with solus dab plus
And
Keith A, you might be interested in my submission to the Inquiry into
the Broadcasting Services Amendment (Media Ownership) Bill 2006 and
related bills:
This submission does not address the detail of the bills, but the
underlying basis for sound media policy, whether broadcast or
delivered by other modes. I suggest the following principles:
1. Media policy should be directed to the benefit of end-users and the
community at large, rather to any particular vested interests.
2. Policy should not discriminate between modes of delivery in terms
of content, geographical reach or other factors. All modes of delivery
should be able to provide whatever content is technically feasible for
that mode - no content should be reserved to a particular mode of
delivery.
While these principles would appear self-evident, they are far from
the basis of existing and proposed policy. There is no prima facie
case for restricting particular forms of content, e.g. full-motion
video, drama, sport etc to a particular mode of delivery, e.g. free-to-
air tv. While some content is inherently constrained in its potential
delivery mode by technological constraints - for example, a print
newspaper can not include full-motion video, except on accompanying
discs - there is no sound public policy reason for present and
proposed discrimination by mode of delivery.
The broader context is that change is the essence of existence, of
economic growth, of human communication. As regards economics,
policies which embrace openness, competition, change and innovation
will promote growth. Policies which have the effect of restricting or
slowing change by protecting or favouring particular industries or
firms are likely over time to slow innovation and growth to the
disadvantage of the community. Similarly, policies which deny change
and restrict the output options for particular media and related
industries will limit consumer choice and weaken competitive pressures
for innovation which better serves consumers and the community.
Subject to laws governing, e.g., slander and pornography, there are no
defensible grounds for the artificial distinctions maintained by the
government's proposals. Media reform has been discussed for decades.
It is time for real reform to be delivered.
Posted by Faustino, Saturday, 1 March 2008 2:45:40 PM
01.03.2008 17:02 - Faustino sensibly said
bdgr...@gmail.com
> On Mar 8, 9:55 am, "Spam Free aus.radio.broadcast.moderated
>
> http://www.aussieseek.com" <nswa...@yahoo.com> wrote:
> > DRM can fit 8 CD-quality stations into the same amount of bandwidth
> > that DAB uses.
> > DRM can fit 8 CD-quality stations into the same amount of bandwidth
> > that DAB uses.
>
> Why do you persist in continually restating this when it is patently
> untrue?
>
> the compression codecs used by DAB+ and DRM are the same. The
> bandwidth per station is identical for the same quality.
He never mentioned DAB+, just DAB.
>
> DRM CANNOT fit 8 stations in one signal which is what you imply
> with the statement as the maximum is basically 2 with reduced quality.
>
> As DRM basically uses a separate channel per station and needs at
> least
> 20 Khz for "CD" quality where is all the extra spectrum going to come
> from?
>
> Be real!
As I understand it DRM doesn't really do CD quality at all (well not
while retaining any immunity to interference anyway) and you need DRM+
for CD quality.
DTVAUST
>
> He never mentioned DAB+, just DAB.
>
>
>
> > DRM CANNOT fit 8 stations in one signal which is what you imply
> > with the statement as the maximum is basically 2 with reduced quality.
>
> > As DRM basically uses a separate channel per station and needs at
> > least
> > 20 Khz for "CD" quality where is all the extra spectrum going to come
> > from?
>
> > Be real!
>
> As I understand it DRM doesn't really do CD quality at all (well not
> while retaining any immunity to interference anyway) and you need DRM+
> for CD quality.
As a suggested petition to the government it fails badly if it has
errors
in it. The government has legislated DAB+ so that's obviously what
must be addressed and what he suggests is wrong.
The bandwidth of DAB+ and DRM and DRM+ are all set by the
AAC+ codec and desired quality, not the system.
It incidentally is the same as the IBOC AM codec which has been
dumped
ny Ibiquity who announced recently that AM digital HD radio was
basically
a failure and no more development was being done to try and fix the
problems with it.
Ex-Engineer
"DTVAUST" <10024...@compuserve.com> wrote in message
news:b3cd21ee-20f2-4dfc...@u10g2000prn.googlegroups.com...
Hey DTVAust!
If possible, more info please! I was unaware that the IBOC AM Codec was the
same as that being pushed by DRM+.
If this is the case then is it goodbye to any hope of wide-band (ie.30 -
10KHz) stereo broadcasting via DRM+ on the AM band?
Do you have a URL for the Ibiquity decision?
Yours
Ex-Engineer
DTVAUST
wrote:
> "DTVAUST" <100246.2...@compuserve.com> wrote in message
From 29th February 2008.
Just read that iBiquity has hired a new V.P. of sales - a Mr. Stocks
from MyerEmco. Seems I've seen that guy on TV a few years back
selling Ginsu knives or something like that. OK, maybe it was laundry
detergent.
In making the announcement, Bernie Sapienza, iBiquity's Vice President
of Retail Business Development, said, "We are happy to bring JR on
board at this important time, when the growth in HD Radio products at
retail is increasing. We will rely on him to work with our retail and
manufacturing partners to build HD Radio technology's presence at
retail."
Seems iBiquity might want to start with a little honesty about their
current state of sales, or lack of. The dudes at iBiquity are spin-
masters. At least Ginsu knives work.
Also read that iBiquity will not support any further development of AM
HD beyond the current state. That should send a shiver to those boys
currently transmitting AM HD.
These iBiquity dudes are techno-wizards. Even a school boy with a
rudimentary understanding of amplitude modulation schemes knows there
is no way to transition from an analog signal to a digital one without
taking huge chunks of bandwidth. Unless you want if to sound like a
cell phone.
Welcome aboard the Titanic JR.
DTVAUST
wrote:
> If possible, more info please! I was unaware that the IBOC AM Codec was the
> same as that being pushed by DRM+.
> If this is the case then is it goodbye to any hope of wide-band (ie.30 -
> 10KHz) stereo broadcasting via DRM+ on the AM band?
>
Some info on the codecs.
Basically all come from "Coding Technologies" and are almost
exactly the same..
The codec for DAB+ is not yet internationally standardised
nor is the one for DRM+ but it is unlikely that they will be changed.
Here from the DRM site is the codec description:
The DRM system uses MPEG 4 HE AAC v2 for mixed
programming providing high quality at low data rates.
In addition, CELP and HVXC coders are available to
provide speech-only programming at even lower data rates.
In 2005, the DRM Consortium decided to extend the
DRM system to operate in all the broadcasting bands
below 120 MHz. This range includes:
* 47 MHz to 68 MHz (Band I) allocated to
analogue television broadcasting;
* 65.8 MHz to 74 MHz (OIRT FM band)
* 76 MHz to 90 MHz (Japanese FM band)
* 87.5 MHz to 107.9 MHz (Band II) allocated
to FM radio broadcasting.
This system extension has the internal project name DRM+. The DRM
Consortium
is now preparing to test and verify the design of DRM+ prior to
standardisation
as a revision to the existing DRM System specification, ETSI ES 201
980.
Like DRM and DAB, HD Radio employs COFDM modulation.
The audio compression algorithm (CODEC) initially developed
for HD Radio was a perceptual audio coding (PAC),
a Bell/Lucent algorithm but was changed to the HDC(tm) codec in
2003. The change to the new audio codec was made to improve
low-bitrate efficiency. The new code developed by iBiquity and
Coding Technologies shares much of its attributes with other
state-of-the-art codecs, but differs in its ability to deliver near
CD quality at rates as low as 96 kbps and FM quality audio at
rates as low as 20 kbps. HDC has also the unique ability to
segregate audio into core and enhanced layers for transmission
on discreet carrier segments. Research shows that stereo audio
can be transmitted with startlingly superior quality at rates as low
as 48 kb/s.
As per the Eureka 147 technology HD Radio employs C-FEC,
Interleaving, and frequency and time diversity. In addition HD Radio
provides subcarrier and pulse-shaping, first adjacent channel
cancellation, channel state indication and complimentary combining.
All these techniques significantly improve reception under major
interference conditions.
The audio CODEC (Coding - Decoding) system is the most critical
element in the resulting audio quality of any digital radio system.
A codec works by exploiting the properties of the human auditory
system; in particular, the spectral and temporal masking effects
of the inner ear. Essentially, the system codes only audio signal
components that the ear will hear, and discards any audio
information that, according to the psychoacoustical model, the
ear will not perceive. Thus valuable bit-rate capacity is allocated
only to coding and conveying information that is important to
maintaining a high subjective audio quality.
Current codec systems available include MP2, MP3, AAC+ and HDC.
The MP2 and MP3 codecs were among the first innovative methods
of compressing audio bit rates to levels that could be useful.
Over time, improvements led to a far more efficient method; AAC,
which significantly outperforms both MP2 and MP3 coding systems.
Then in 1999, a new technology was developed by Coding Technologies
called Spectral Band Replication (SBR), and when this technology was
combined with existing audio codecs performance again improved
significantly.
The combination of SBR with AAC is called High Efficiency AAC or AAC+
and is one of the most efficient audio codecs in existence.
Coding technologies have since improved further the coding algorithms
which produced HDC, the codec used in HD Radio.
zfyoung
The DAB/ DAB+ bandwidth is about 1.53MHz, while the bandwith for DRM+
is 200kHz,
and the DRM is 10kHz or 20kHz depending on the signal configuration.If
we take into account of
the codec and the number of stations multiplexed in one single DAB+
signal, there is not much
different between DAB+ and DRM+ in terms of service quality and
spectrum efficiency.
On the other hand, due to its frequency character, DRM+ and DAB+/DAB
can only cover city-wide
areas, this will leave much of Australia rural area without digital
service. And in this place, only
DRM can fill the gap,and provide with near 'FM' quality service.
DTVAUST
To get "Near FM" quality on DRM you need at least a 18 or 20 Khz
channel.
This means you have to get rid of half the AM stations in Australia
to
change over to DRM+.
Do you really think this is practical ?
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
Australia: ACMA embargoes shortwave spectrum to plan for DRM
September 29th, 2006 - 15:10 UTC by Andy
The Australian Communications and Media Authority has placed an
embargo on frequency bands potentially suitable for use by
broadcasting services using Digital Radio Mondiale (DRM). These bands
are outside the broadcasting services bands used by traditional
broadcasting services.
"ACMA intends to plan for the introduction of Digital Radio Mondiale
but is also aware that international arrangements are still evolving
and that Australia is influenced by these arrangements," said Giles
Tanner, General Manager of ACMA's Inputs to Industry Division.
"ACMA believes that a greater public benefit should be realised if its
introduction is planned rather than introduced prematurely while
international developments are still occurring. ACMA's use of
embargoes and planning is intended to avoid the premature introduction
of unplanned services that may compromise the benefits to the public
that would otherwise result from the delivery of comprehensively
planned Digital Radio Mondiale bands."
The frequency bands involved are 5950âEURO"6200, 7100âEURO"7300, 9500â
EURO"9900, 11650âEURO"12050, 13600âEURO"13800, 15100âEURO"15600, 17550âEURO"17900,
21450âEURO"21850 and 25670âEURO"26100 kHz. It is intended that no new
frequency assignments in these bands will be authorised except for
certain purposes.
ACMA will consider applications for the licensing of trials to
investigate the use of the bands for Digital Radio Mondiale.
(Source: Australian Communications and Media Authorit
zfyoung
> To get "Near FM" quality on DRM you need at least a 18 or 20 Khz
> channel.
> This means you have to get rid of half the AM stations in Australia
> to
> change over to DRM+.
> Do you really think this is practical ?
Hi, DTVAUST:
According to my reception experience, DRM with 10kHz is indeed enough
to deliver signals of "near FM" quality.
Of course you may quibble about what the so call "near FM" quality
really is. Well, even if that is not true, DRM
still provide much flexibility and improve substantially service
quality compared with conventional AM. eg. less power
(only a quarter of that of AM) covering the same area, robustness
against interference, SFN(Single Frequency Network), MFN, data
service and automatic frequency switching etc...
By the way, DRM with double bandwidth(18 / 20kHz) rarely used in
conventional shortwave band esp. in the highly congested one. It is
mainly applied in areas where vacant bandwidth is available esp. in
26MHz band.
DTVAUST
You miss my point.
To get 9 Khz for a DRM service you have to get rid of an AM service.
This means to have a changeover period you have to get rid of
half the AM stations. Then to get decent quality post the changeover
you will still only have half the stations.
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
Well we are well advised so your misinformation wont be notced;
AndThats not the advice from the DRM tests at Wollongong.and canberra.
But the planned DRM services
are mostly for wide coverage services
in regional areas and .. not AM
Weve got nothing against Dab plus
But we also want the rigjht to run DRM
in this country and weve been invited
by the Minister and the ACMA to do so
Last time I looked.you wernt them
DRM plus for instance on Long Wave
would cover all Austalia for a station like
news radio with i TX but youd need 1000
Trying to sell transmitters are you?
http://www.isonliveradio.com/iarba/petition/
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
Again
If You are like minded please sign this IARBA Petition and join us in
asking the Minister and the ACMA to reverse the previous governments
CRA cooked up unfair ban on new entries to Digital radio. With the
inclusion of DRM theres plenty of room for left out community stations
narrowcast and narrowband and new entrants
simple.
DTVAUST
Why do you keep posting this rubbish.
All you want is the embargo on new operators to be cancelled.
If that's the case as is obvious why not put up a petition about
that and not confuse the issue with rubbish about
DRM DRM+ DAB DAB+ or any other digital
format?
There are no frequencies or receivers available.
Until the standards are ratified (or in some cases created) there
can be no new stations.
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
Wrong
Digital Radio Mondiale (DRM) is a set of digital audio broadcasting
technologies designed to work over the bands currently used for AM
broadcast, particularly shortwave. DRM can fit more channels than AM,
at higher quality, into a given amount of bandwidth, using various
MPEG-4 codecs.
I suggest you readup on DRM
http://en.wikipedia.org/wiki/Digital_Radio_Mondiale
The ACMA advise there are plenty of frequenies for DRM/ What theyre
wrong and youre right?
As for receivers some of these look
attractive
http://www.wohnort.demon.co.uk/DAB/rxdrm.html
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
>
> The ACMA advise there are plenty of frequenies for DRM/ What theyre
> wrong and youre right?
> As for receivers some of these look
> attractivehttp://www.wohnort.demon.co.uk/DAB/rxdrm.html
Yawn
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
and
DTVAUST
The power of a DRM transmitter is much greater than an AM
transmitter as the DRM system uses COFDM modulation which
has a peak to average ratio of about 6dB. This means the peak
power required in a DRM transmitter is over 4 times that of an AM one.
>
> > > > Well we are well advised so your misinformation will not be noticed;
> > > > And thats not the advice from the DRM tests at Wollongong.and Canberra.
> > > > But the planned DRM services
> > > > are mostly for wide coverage services
> > > > in regional areas and .. not AM
They are supposed to replace the regional ABC 50KW AM stations
> > > > We have got nothing against DAB plus
> > > > But we also want the right to run DRM
> > > > in this country and we have been invited
> > > > by the Minister and the ACMA to do so
I would love to see a copy of the invitation.
The minister has changed and the ACMA dosn't esist anymore
in case no-one told you.
> > > > Last time I looked.you were not them
No I'm not but I do have a good idea of what's going on.
>
> > > > DRM plus for instance on Long Wave
> > > > would cover all Austalia for a station like
> > > > news radio with 1 TX but you would need 1000
1000 what? I asume you are meaning 1000 megawatts.
There are no receivers for LW in Australia.AM or DRM
> > > If You are like minded please sign this IARBA Petition and join us in
> > > asking the Minister and the ACMA to reverse the previous governments
> > > CRA cooked up unfair ban on new entries to Digital radio. With the
> > > inclusion of DRM theres plenty of room for left out community stations
> > > narrowcast and narrowband and new entrants
>
> > > simple.
>
> > Why do you keep posting this rubbish.
> > All you want is the embargo on new operators to be cancelled.
> > If that's the case as is obvious why not put up a petition about
> > that and not confuse the issue with rubbish about
> > DRM DRM+ DAB DAB+ or any other digital
> > format?
> > There are no frequencies or receivers available.
>
> > Until the standards are ratified (or in some cases created) there
> > can be no new stations.
>
> Wrong
There are no standards for DRM+ or DAB+ yet.
There are proposals but NOTHING has been ratified.
>
> Digital Radio Mondiale (DRM) is a set of digital audio broadcasting
> technologies designed to work over the bands currently used for AM
> broadcast, particularly shortwave.
This is true. Something unusual in your posts!
> DRM can fit more channels than AM,
> at higher quality, into a given amount of bandwidth, using various
> MPEG-4 codecs.
This is rubbish. You cannot fit more channels at higher quality.
You can have more channels but with poor quality. Several of the
DRM modes are defined as "Speech Only".
>
> I suggest you readup on DRM http://en.wikipedia.org/wiki/Digital_Radio_Mondiale
If wikipedia is the best reference you can find you don't know
anything about DRM. (Or did you write the entry)?
>
> The ACMA advise there are plenty of frequencies for DRM/ What they are
> wrong and you are right?
There are plenty of frequencies for shortwave not MW-AM.
There are problems with SW frequencies as these have to
be co-ordinated with overseas administrations.
> As for receivers some of these look
> attractivehttp://www.wohnort.demon.co.uk/DAB/rxdrm.html
Did you bother to read the details?
There is only ONE available receiver at present the Morphy Richards.
It's a commercially available receiver in Europe but has a major
fault in that it is very insensitive and dosn't have any provision
for an external antenna as you would know if you owned one
as I do.
All of the others are "Experimental or Prototype" receivers
except for the MAYAH which has been discontinued due to
poor sales.
There is a company in China called Himalaya which is making
a receiver if you want to buy in large quantities. They made the
MAYAH in China for Mayah.
Any receiver would have to cover MF AM, FM, DAB and SW
3-30 Mhz with DAB< DRM and analogue at least to be of any
use in Australia.
These don't exist and are not likely to due to the cost and small
numbers that would be sold.
The other thing is that DRM transmitters are VERY expensive
and are well out of the price range of community broadcasters.
(I have corrected your grammar and spelling so that it can be read).
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
There is something ugly about the catering costs of the CRA Lobby
being more important the the future of radio in this country
at Howards long gone hasty digital decision time that gave us
only DAB plus. for all the wrong reasons
If You are like minded please sign this IARBA Petition and join us in
asking the Minister and the ACMA to reverse the previous governments
unfair ban on new entries to Digital radio. With the inclusion of DRM
theres plenty of room for left out community stations narrowcast and
narrowband and new entrants.
Go to
http://www.isonliveradio.com/iarba/petition/
DTV Of ourse There are no standards for DRM yet.... duh!!!!
There are proposals but NOTHING has been ratified.
Thats what the ACMA enquiry is
A Think tank
>We Said Digital Radio Mondiale (DRM) is a set of digital audio broadcasting
> technologies designed to work over the bands currently used for AM
> broadcast, particularly shortwave.
DTV said This is true. Something unusual in your posts!
Insulting. Your style. No more feeding the troll
> DRM can fit more channels than AM,
> at higher quality, into a given amount of bandwidth, using various
> MPEG-4 codecs.
DTV said "This is rubbish. You cannot fit more channels at higher
quality.
You can have more channels but with poor quality. Several of the
DRM modes are defined as "Speech Only"
Depends on the inventory.
>We said to DTV I suggest you readup on DRM http://en.wikipedia.org/wiki/Digital_Radio_Mondiale
If wikipedia is the best reference you can find you don't know
anything about DRM. (Or did you write the entry)?
Insulting. Your style No more feeding the troll
> The ACMA advise there are plenty of frequencies for DRM/ What are they are
> wrong and you are right DTV?
There are plenty of frequencies for shortwave and MW-AM.
DTV said There are problems with SW frequencies as these have to
be co-ordinated with overseas administrations.
Yipee . Air tickets for junket !!!!
.
You said DRM receivers don't exist and are not likely due to the cost
and small
numbers that would be sold.
Stay tuned. Theres nothing locally apart from sw to tune to... yet.
You said "The other thing is that DRM transmitters are VERY expensive
and are well out of the price range of community broadcasters."
You need new quotes. Cheap as chips
You said to us/ saying (I have corrected your grammar and spelling so
that it can be read).
Me to, DTV borrowing the name of another less popular website
http://www.dtvforum.info/index.php?s=b815d49b936e08d3bb81b41f94e01320&act=idx
said" I would love to see a copy of the invitation.
and said The minister has changed and the
ACMA dosn't esist anymore.
the
ACMA dosn't esist anymore ?????????????
rubbish.
"DTV Theres also an x in exist.
Everyone will have the right to submit to the up coming ACMA enquiry
and if you want a copy of the letter just send $2 to IARBA
The ACMA does exist and its not going anywhere
in case no-one told you
Go to
http://www.acma.gov.au/WEB/HOMEPAGE/PC=HOME
You said
"I do have a good idea of what's going on.
Im not so sure
"
Spam Free aus.radio.broadcast.moderated http://www.aussieseek.com
dutch company develops single-chip solution for multi-standard car
radios
December 13th, 2007 - 9:27 UTC by Andy
NXP Semiconductors, the independent semiconductor company founded by
Philips, has announced a multi-standard digital terrestrial radio
solution for high-quality analogue and digital radio for in-car
entertainment, anywhere in the world. The system uses NXP's newest AM/
FM Car DSP, the Nexperia(tm) PNX9525 including NXP's own DRM and DAB
software, as well as the SAF355x including the IBOC technology from
iBiquity Digital Corporation, the developer of digital HD Radio(tm)
technology.
Building on the vision of a single-chip solution for multi-standard
radio, the solution uses a software-defined radio approach to
effortlessly manage multiple frequency streams and seamlessly
integrate with existing DSP-based analogue radio, in a very small
footprint - saving car manufacturers time, effort and costs. Consumers
will benefit from intelligent signal search, concurrent radio and data
feeds, as well as the ability to stream different broadcasts to
separate passengers in the same car - giving them their preferred
choice of radio.
The Nexperia PNX9525 is a software programmable DRM and DAB platform
that allows seamless switching between the two standards. The SAF355x
incorporates the HD Radio technology from iBiquity. NXP's solution
combines the PNX9525 and the SAF355x, which can then be integrated
with existing DSP-based AM/FM platforms to deliver a multi-standard
digital terrestrial radio experience. This flexibility reduces
integration challenges and time-to-market for car manufacturers by
offering a single system solution that can be programmed for DRM and
DAB for Europe, and HD Radio in the US.
According to market analysis firm iSuppli Corp., "The combined demand
for AM/FM and digital terrestrial radios for in-car use will increase
from 101.4 million units in 2007 to 141.9 million units by 2013. As
multiple geo-specific radio broadcast standards develop across the
world, car manufacturers will have to examine what overlaps exist
between the standards before deploying their roll-out strategies. A
multi-standard radio solution that can be programmed to suit different
regions will reduce the time-to-market." [Source: iSuppli Automotive
Infotainment Systems Market Tracker - H2 2007].
The NXP system will be demonstrated at CES Las Vegas in 2008.
> "
DTVAUST
The general consensus about the available chips was that they
drew so much power that they were useless in any type of portable
device and needed a car with its big battery to run them.
Estimates were that a portable would have less than 1 hour running
time on typical batteries.
Future estimates are that in 2 years they will have a new version that
would last for 2 hours and in 5 years 4 hours.
An ipod FM radio lasts 12 hours on 2 AA cells. Big difference!
matt cook
> There are no receivers for LW in Australia.AM or DRM
There are LW AM recievers in Australia. I have one in my car. I've
seen the band available on other car radios and portable recievers.
The Morphy Richards you own is one. Of course the ITU doesn't allow
broadcasting on this band in this region, and nobody outside of light
plane operatators buy radios specifically to recieve this band, but
there are recievers for it.
Also, ACMA still exists.
ted
course there is nothing on LW. Ted