Tag Archives: DAB+

Guest post: The future for radio broadcasting in Australia

Many thanks to SWLing Post contributor, Phil Brennan, who shares the following guest post–an article he originally authored for the Australian DX News:


WHKY-AM-Radio-Tower

What Future for Radio Broadcasting in Australia?

By Phil Brennan, Darwin, NT

As we witness the worldwide decline in long wave, medium wave , shortwave and indeed FM broadcasting, it can be at times a slightly depressing exercise to ponder the future of our hobby.  As I write, just last week Radio France announced that it will soon cease all LW broadcasting.  There’s an on-line petition to save the service: this morning it had collected 770 signatures after one week. It was 769 until I sent my modest click across the universe L.

On the domestic front we’ve seen the pointy-headed bean counters in Canberra and their political masters take the knife to our national broadcaster to the point where Radio Australia now seems to be little more than a relay station for the ABC with barely any in-house production tailored for its audience.

With all this doom and gloom it was with some trepidation that I spied a recent Australian Government report entitled Digital Radio Report [1] which arrived via my email in-box through the excellent Australian Policy On-line resource.  The report was published in July 2015 by the Department of Communications and was conducted by the Minister for Communications under the Broadcasting Services Act and the Radiocommunications Act. Note: the Minister for Communications then was Malcolm Turnbull who is now Australia’s Prime Minister.

The report makes for an interesting read (for nerds like us) and provides some great insight into the bureaucracy’s thinking on the future of radio broadcasting in this country.  So while the report ostensibly considers the current and potential state of digital radio in Australia, in so doing it looks at the other forms of radio broadcasting and gives us a peek into the future.

The report broadly considers the following issues:

  • The current state of digital broadcasting and alternative forms, eg streaming services through the interwebs
  • Whether Australia should set a digital switchover date and close off analogue services; and
  • The legal and regulatory framework for digital services.

Like you would have dear reader I quickly scrolled through the report to see if it was recommending a full switchover to digital.  The good news is that this won’t happen anytime soon and perhaps not ever.  Phew! It seems Australia’s geography and sparse population works in our favour (for once).  Anyway, more on that later.

So what does the Australian radio broadcasting landscape look like at present?  Well for lovers of analogue radio it’s still looking pretty strong and it’s likely to remain that way for some time to come.  In the five big cities the 2014 average weekly audience for commercial radio services grew by 4.13 per cent to 10.1 million people.  That’s pretty impressive given the quality of the stuff they serve up each day.  Aunty’s (that’s the ABC to foreign folk) radio service reached a record 4.7 million people in 13/14, an increase of 155,000 listeners on the previous year. Well done Aunty!

All up there are 273 analogue commercial radio services (104 on AM, 152 FM and 12 outside the broadcasting service bands.  Community radio is going strong with 357 analogue services (13 AM and 344 FM) plus 244 narrowcasters (33 AM and 211 FM).  There’s lots of stuff still out there it seems.  Perhaps too much as the FM band is becoming very crowded in the major metropolitan areas.

There are 142 commercial digital services in the big capitals plus the two trial sites in Canberra and Darwin.  Interestingly a good proportion of the digital services are simulcast analogue services, for example 11 out 29 of the commercial digitals in Sydney.  Listenership of digital radio is growing slowly and steadily, reaching 25 per cent in the first quarter of 2015, primarily due to the growth of receivers in motor vehicles.

Streaming services are rapidly gaining ground with services like Spotify, Pandora and the new Apple Music picking up new subscribers each week.  The move by Aunty and the Special Broadcasting Service’s (SBS) to mobile apps for streaming content is also showing good growth. It would appear that to some extent this growth has been at the expense of terrestrial digital services, but audience data in this area is pretty sketchy it seems.

So what of the future for digital radio? Well it seems that for the present the public does not show a preference for digital radio over other forms. And while some European countries such as Norway with near total digital coverage are looking to switch off their FM services, some countries such as the UK have postponed their planned switchover to digital due to slow uptake by the listening public.

In Australia there are big interests such as SBS, Commercial Radio Australia and Broadcast Australia pushing for a switchover to digital as soon as possible.   Thankfully the report’s authors have listened to other bodies that advocate for a multi technology approach.  Significantly the report notes that while digital could match FM for coverage with a similar number of transmitters, it will struggle to match the coverage provided by the medium and high powered AM transmitters that reach the remaining population.  Digital Radio Mondiale and satellite digital radio technologies could increase digital’s coverage but are not considered viable.

Internet based services are not seen as a realistic alternative in the medium term due to high data costs, restricted wifi coverage, likely interruptions in high traffic areas and poor battery life on mobiles.  It’s likely that this will be a niche medium for some time.

So what does the report conclude and recommend?  Well, digital radio was only ever introduced as a complimentary technology and that will continue to be the case.  In saying that the report makes a series of recommendations to free up the rules so broadcasters can take up the digital option more readily.  DAB+ is the preferred technology so don’t go ordering a DRM set anytime soon.

Perhaps most interestingly, the report makes a major finding that there may be an opportunity to consider how analogue terrestrial radio coverage can be improved pending the roll out of digital radio.  This includes further research into how AM coverage can be improved in metropolitan areas and whether the FM spectrum can be made available in regional areas for new analogue services or switching existing AM services over to FM, potentially in lieu of the rollout of digital services.  For us lovers of analogue radio this is certainly good news, particularly if more high powered AM broadcasters hit the band.

Does this actually mean that analogue radio services are safe?  Well, governments have been very good at ignoring reports advocating for the public good and succumbing to the commercial interests with other agendas, particularly when it comes to media.  That said, it doesn’t make a lot of sense for the government to pull the plug on analogue anytime soon given the coverage issues in regional Australia.  However, when it comes to governments, the sensible thing to do is often viewed as the last option.

[1] © Commonwealth of Australia


Thank you, Phil, for your article and opinions! I agree–in a country with such vast expanses, analog radio still has advantages over other mediums. Comments?

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Sweden (Again) Rejects DAB

Degen-DE27Digital Radio FM Europe blog is reporting Sweden wants to keep FM radio:

Parliament Confirms Rejection of DAB Radio in Sweden [updated]

Public radio continues on FM and will push for extending its remit to include digital radio online.

The Constitutional Standing Committee (KU) in Riksdagen (the Parliament) has processed the government missive regarding the 2015 National Audit review of digital radio in which the proposal for a transition from FM to DAB+ in 2017-2022 was rejected. After a short debate and without objection from any of the eight political parties Riksdagen today appended the missive to the protocol. This marks the end of 24 years of efforts to replace FM with DAB in Sweden.
Already in June 2015 the Government took the decision to reject the proposal for a digital transition for terrestrial radio. In November this was piggy-backed in the budget proposal to the Parliament.
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This vote in the committee did not come as a big surprise as there has been an increasing skepticism in most parties against closing the FM band. A year ago in the consultation round the proposal was put into question or rejected by most qualified state institutions as PTS the telecom authority, KTH Royal Institute Of Technology, the Armed Forces, the Transport Agency and the Competition Authority as well as organizations as Royal Swedish Academy of Engineering Sciences, Ericsson and the Community Radio Assn.
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KU has been listening to the arguments for DAB+ from the two commercial networks and the public radio Sveriges Radio (SR) as well as critical comments by the Public Service Council. KU notes that the Government in its missive says that it cannot be ruled out that the question of digitalization of terrestrial radio will be on a future agenda. KU is satisfied with the Government plan to observe international developments. However, there was no other comments by the committee other than the missive should be appended to the protocol.
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This marks the end of 24 year period of futile efforts to introduce the DAB technology in Sweden. SR started testing DAB in Stockholm continuous since 1992 and officially went on air 1995 the same year as BBC introduced DAB in the UK.  2005 DAB was rejected for the first time by the social democratic government. Program have been broadcast in an inofficial mode via DAB and DAB+ transmitter in four major cities but few listeners are reported.
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Today up to a third of all listening on the public radio channels are on-line. This is much due to the high smartphone usage on 3G/4G LTE networks in Sweden. While forced to leave the DAB agenda SR will now request that the politicians will include its Internet activities in the next public service remit 2018.
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The two commercial radio networks Bauer and MTG still hold licenses to start DAB+ broadcasting later this year. But they are not expected to go DAB alone without having the public radio onboard. 60 % of the radio audience in Sweden is listening to SR. In the consultation round the DAB proposal was rejected by the community radio organisations.

Robert Gulley, AK3Q, is the author of this post and a regular contributor to the SWLing Post. Robert also blogs at All Things Radio.


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DAB Praha: Czech Radio begins digital broadcasting

Czech-Republic

Many thanks to SWLing Post reader, David Iurescia, who shares this news and audio report via the Radio Praha website:

“10:55 on Thursday morning was an important occasion in the history of radio in the Czech Republic as it was the exact moment that full digital broadcasting was launched in the country. The new network carries nine Czech Radio stations, some of which were previously only accessible online. For now the service is just available in the capital and Central Bohemia, but there are plans to roll it out to other parts of the country in the next few years.”

Click here to read the full transcript at Radio Praha.

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In the UK, digital radio is not always well-received

DABMany thanks to my buddy, Dan, who shares this article from the Daily Mail:

“It was supposed to be the technology that would transform the way we listen to the radio.

But audiences condemned DAB – or Digital Audio Broadcasting – as a disaster yesterday because of the poor quality of the signal.

They complained that it cuts out in the middle of broadcasts, while others claim the technology is already out of date.

One even joked on Twitter that while we can now receive close-up photos of Pluto taken billions of miles away, he ‘still can’t get a good signal on DAB’.

DAB had been heralded as less prone to interference than AM or FM, but household appliances including microwave ovens, laptops, mobile phones and TVs have all been found to affect reception. Power lines and the weather can knock out digital signals, while signal strength can be reduced in built-up areas, in basements and inside buildings with thick stone or reinforced concrete walls.”

Read more: http://www.dailymail.co.uk/news/article-3168864/Coming-loud-clear-gripes-digital-radio-Audiences-condemn-DAB-poor-quality-signal-cuts-middle-programmes.html

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Norway: first country to shut down FM analog radio

The City Hall (Radhus) in Oslo, Norway.  (Source: Public Domain)

The City Hall (Radhus) in Oslo, Norway. (Source: Public Domain)

(Source: Radio.no)

NORWAY TO SWITCH OFF FM IN 2017

Within two years from now, the shutdown of national FM-networks begins in Norway. The switchover will begin in the North and will be implemented region by region.

Thursday, the Ministry of Culture announced a national FM-switch off, to complete the transition to digital radio. Norway is making an historical move into a new radio era, being the first country in the world to decide upon an analogue switch-off for all major radio channels. With DAB and digital radio, listeners will be provided with more radio channels and greater diversity in content.

[Continue reading on Radio.no…]

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Chorus 4: The DSP chip that supports AM, FM, DAB, DAB+, HD Radio and DRM

FrontierSiliconThe London-based digital solutions company, Frontier Silicon, has announced a new DSP radio chip that offers a wide array of available modes and is even DRM ready.

I have seen no specifications for this chip yet, and do not know if it covers the shortwave radio spectrum.

Still, this might be the perfect chip to allow radio manufactures to design an inexpensive, fully digital product in countries where digital platforms are gaining strength (anywhere from the UK to India, for example).

Many thanks to Rob De Santos for apprising me of this. I’ll post the specifications when they become available. Read the full press release below:


(Source: Frontier Silicon Press Release)

Chorus 4 a single-chip solution, integrating four previously separate chips

London, 17th December 2013

Frontier Silicon announces details of Chorus 4, its next generation digital radio chip. Chorus 4 is a single-chip solution, which integrates four previously separate chips to deliver significant cost and energy consumption savings.

Chorus 4 is the fourth generation chip from Frontier Silicon. The chip is designed to encourage the continued advance of digital radio around the world by supporting all major global digital radio standards. Chorus 4 provides solutions for multiple devices, including consumer radios, the automotive aftermarket and, for the first time, smartphones and tablets. The company’s previous solutions have already powered over 20 million digital radios worldwide.

The key features and benefits of Chorus 4 are:

  • Low cost, single chip solution: integration of RF front-end, baseband, application processor and DAC (“four chips in one”) delivers significant cost savings which enable high quality, entry-level price point digital radios
  • Ultra-low power consumption – one month’s listening for 5-6 hours a day on a portable radio with four D cell batteries (comparable to FM performance)
  • Multiple solutions for portable and table-top radios, smart-device docks, wireless speakers, hand-held receivers, sound-bars and audio systems
  • Automotive aftermarket – solutions for head units, integrated convertors and low cost adapters
  • Smart devices – enables digital radio solutions for mobile phones and tablets
  • Bluetooth connectivity – connecting smart devices and digital radios to enable hybrid radio (with interactivity and additional content delivered via IP), music streaming and remote control
  • Integrated service guides – new software will enable listeners to select stations from a single list of digital and analogue stations regardless of platform
  • Multiple radio standards – including support for AM, FM, DAB, DAB+, HD Radio and DRM

Digital Tick compliant – Chorus 4 solutions meet all technology requirements of the UK minimum specifications for both domestic and automotive digital radio devices.
Frontier Silicon CEO, Anthony Sethill, said

“Chorus 4 represents a step change for the digital radio market. After ten years of development on this and previous solutions, we now have our fourth generation chip – an integrated, single chip offering enhanced functionality, lower cost and significantly greater energy efficiency. Chorus 4 will power multiple devices, including low cost automotive adapters and devices with Bluetooth connectivity. For the first time, digital radio in mass deployment smartphones will become a viable proposition. As a multi-standard chip, Chorus 4 will address emerging opportunities around the world. I look forward to working closely with broadcasters, transmission operators and device manufacturing partners to address these exciting opportunities.”

About Frontier Silicon Limited

Frontier Silicon is the world’s leading supplier of integrated circuits and modules for digital radio and connected audio products. Frontier Silicon is part of the Toumaz Group, a pioneer in low-power wireless semiconductor and software technologies for the consumer audio and wireless healthcare markets.

The group is headquartered in London, England, with design centres in Oxford, Cambridge, Hong Kong and Romania. The company also has sales and technical support teams in Hong Kong, China and Japan.

Frontier Silicon’s audio products offer solutions for DAB/DAB+, Internet radio and connected audio – from silicon through software to production-ready platform designs.

Customers supplied by Frontier Silicon include Argon, Bang & Olufsen, Bose, Bush, Denon, Dual, Geneva, Goodmans, Grundig, Hama, harman/kardon, Hitachi, JVC, Magic Box, NAD, Onkyo, Panasonic, Philips, Pinell, Pioneer, Pure, Revo, Roberts, Ruark Audio, Sangean, Sanyo, Sharp, Sony, TEAC, TechniSat, Tivoli Audio and Yamaha.

Frontier Silicon is a trademark or registered trademark of Frontier Silicon Ltd.

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