Category Archives: Digital Audio Broadcasting

Radio Waves: New SSB SWL Contest, DRM Functionality Recommendations, and Word DAB Summit 2024

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Radio Waves:  Stories Making Waves in the World of Radio

Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors David Iurescia, Alan, and Frank (SWL F14368) for the following tips:

SSB DXCC SWL Contest

Many thanks to Frank (SWL F14368), who shares the following announcement:

Hi Thomas

I have organized another SWL contest for 2025! The goal will be to listen a maximum number of DXCC entities in eight months but only in SSB mode (USB or LSB).

Check out the details here.

Best 73 de Frank SWL F14368

Digital Radio Mondiale Releases the DRM Consumer Radio Receiver Functionality Recommendation (DRM Consortium)

The DRM Consortium (www.drm.org) releases today its DRM Consumer Radio Receiver Functionality Recommendation (rxspec.drm.org). The document describes and defines the core functional parameters of consumer radio receivers capable of receiving DRM radio broadcasts. As DRM is being increasingly rolled out, adopted and demonstrated globally such a document is necessary to offer a guide to receiver manufacturers, but also broadcasters and regulators, so that consumers get a common and consistent DRM digital radio experience.

[…]The DRM Receiver Functionality Recommendation applies to all types of consumer-targeting DRM radio receivers, with detailed application-specific requirements for automotive receivers, personal mobile devices (such as mobile, feature, and smart phones or tablets incorporating built-in radio receiver functionality for terrestrial broadcast radio), and general-purpose receivers (all types of stand-alone receivers, including home and desktop radios).

The Consumer Receiver Recommendation builds upon the more technical DRM MRR – Minimum Receiver Requirements Specification (mrr.drm.org), which must be implemented and followed by any DRM receiver.

The new Consumer Receiver Recommendation covers DRM digital radio in all broadcasting bands: in the LW, MW, SW and VHF bands (Band I, II and III) and analogue AM and analogue FM radio. [Continue reading…]

WorldDAB Summit: Ensuring Radio Stays Prominent in the Car (Radio World)

Summary: At the WorldDAB Summit 2024 in Zagreb, industry leaders emphasized the importance of keeping radio front and center in the evolving connected car landscape. Gregor Pötzsch of Volkswagen Group’s CARIAD stressed the need for easy findability and engaging multimedia content, while Tomas Granryd of the EBU Connected Car Playbook highlighted the challenges posed by hidden FM/DAB buttons, voice activation inconsistencies, and increasing competition from global digital platforms. With 70% of in-car audio still coming from radio, broadcasters have the leverage to shape dashboard integration, ensuring seamless hybrid reception and intuitive voice control. Read the full article at Radio World.

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SBC pulls the plug on FM radio

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Many thanks to SWLing Post contributor, David Iurescia, who shares the following news item via SwissInfo.ch:

Swiss Broadcasting Corporation pulls plug on FM radio (SwissInfo.ch)

The Swiss Broadcasting Corporation (SBC) switched off outdated analogue FM transmitters at 11:59pm on New Year’s Eve.

Connections to around 850 ultra-shortwave transmitters throughout Switzerland have come to an end.

Anyone wishing to continue listening to the radio stations SRF1, SRF2 Kultur und SRF3 in the new year, for example, will have to switch to the digital radio technology DAB+ or Internet radio. All other SBC programmes were previously only available via the Internet or DAB+.

SBC, SWI swissinfo.ch’s parent company, now only needs around 260 antennas for DAB+ broadcasting.

Around two dozen private radio stations in Switzerland will continue to broadcast via FM and will not discontinue the service until the end of 2026 at the latest. [Continue reading…]

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Radio Waves: Switzerland to End Analog Radio, AM For Every Vehicle Act, AM v Safety, and Electromechanical Radio Transmitters

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Radio Waves:  Stories Making Waves in the World of Radio

Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Paul and Dennis Dura for the following tips:

Switzerland to end 2024 with an analog FM broadcast-killing bang (The Register)

Time to upgrade that receiver if you’re one of the few Swiss that still don’t have one able to receive DAB+ signals

Swiss radio listeners will soon have to toss out their old sets, as the country plans to end analog FM broadcasting on December 31, 2024, in favor of a total conversion to digital.

The move has been a long time coming in Switzerland, which has largely already transitioned to Digital Audio Broadcasting (DAB+, an evolution of standard DAB that was designed to address early issues). More than 99 percent of the country have access to a DAB+-compatible receiver and fewer than 10 percent of radio signals in the country still being broadcasted in analog FM, according to the Swiss Broadcasting Corporation. [Continue reading…]

AM Radio for Every Vehicle Act to Receive Minor Technical Update (Radio World)

There will be no substantive changes to the legislation

A bill in the House of Representatives that would mandate AM capability in new vehicles is about to be revised, according to a person familiar with the developments.

New information indicates that one of the original co-sponsors of the bill, Rep. Frank Pallone (D-N.J.), plans to introduce an amendment to the bill (H.R. 8449). Changes would only include minor technical updates.

The planned amendment to the AM Radio for Every Vehicle Act comes on the heels of last week’s last-minute cancellation of a planned vote by the House Energy and Commerce Committee, which could have advanced the legislation to the full House for a vote. [Continue reading…]

Would AM Mandate Force Carmakers to Scrap Safety Features?

Opponents play up the possibility that carmakers would have to choose

If Congress requires AM radio in new cars, vehicle manufacturers might have to drop safety features instead.

That’s the message from opponents of the proposed law in Congress. A guest commentary published by Automotive News restates the key points that opponents have been making since the legislation was introduced; but their blunt emphasis on a possible tradeoff with important safety features seems notable.

“To accommodate analog AM radio as a primary design requirement, certain carmakers may need to scrap advanced safety features, with engineers having to prioritize outdated technology over current or future safety innovations,” they wrote. [Continue reading…]

Did you know that 100 years ago there were electromechanical radio transmitters?

Many thanks to Paul who shared a link to this Mastodon thread discussing the technology behind the SAQ/Grimeton broadcast station: https://mastodon.social/@tubetime/110970146022678448

Here’s is a video (we’ve posted in the past) that gives even more detail about the design and operation:

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Guest Post: Review of an affordable, compact DAB+ portable radio

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Many thanks to SWLing Post contributor, Mangosman, who shares the following review:

DAB+ digital audio/FM receiver and Bluetooth Audio Player with 2.4 inch LCD Display 

by Mangosman

Digital Audio Broadcasting with improved audio compression and error correction is called DAB+. I have had this radio for a few years.

Retail in Australia DAB+/FM radios are generally double the price and more. There has only been one model of DAB+/FM/AM radios which is now no longer trading.

This is a size comparison, the sound is very clear and is surprisingly good on music as well, despite having such a small speaker. Even at maximum volume there is no audible noise or distortion. The stereo program HE AAC compressed and FM and Bluetooth and is available on cabled headphones. Such a small speaker cannot produce much in the way of bass, but it is present on headphones.  Since DAB+ is a pure digital system, there is, full stereo, no noise as the radiated signal deteriorates, until the receiver mutes when error correction fails. The radio has a 400 mm long telescopic antenna.

On FM this receiver will decode Radio Data System data, I have had more sensitive FM reception.

This is the most sensitive DAB+ receiver I have owned. I am also currently also using two BUSH clock radios. I also have used older headphone radios, but push buttons and headphone sockets haven’t been very reliable.

This screen shows a full  colour album cover which can fill the screen and title. Smooth FM is the broadcaster’s name because it is simulcast in some other cities on FM and DAB+. The indicators on this screen are level of battery change, muting, stereo indicator, when decoded and the signal strength. Continue reading →

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Jack’s “Perfect Radio Trifecta”

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Many thanks to SWLing Post contributor, Jack Kratoville, for the following guest post:

My Perfect Radio Trifecta

by Jack Kratoville

Last Fall, I asked SWLing readers to assist me in my decision as to what portable radio I should take on a two-week trip to Germany. While I came up with an initial list of portables I already own, there were some excellent suggestions on what I might pack. (Sidenote to Thomas – yes, my wife and I packed everything we needed into two carry-on pieces, including my 3 radios. Your expertise continues to serve us well!) To all else, thank you again for your thoughts, suggestions and comments.

The Tecsun PL-310ET was a top choice of many, yet one I had previously never taken into the field. It seemed a logical choice for this trip. The second is the Sangean PL-210 and it just fits in any pocket. The third is a DAB receiver someone had given me, tossed in a drawer, and forgotten about until I realized Germany implemented DAB to replace the MW and LW bands. The only name I can find online is the DAB-8. Being quite small, it made the cut and I shoved it in between a couple of tee shirts.

At our destination, I quickly realized I could not have chosen a better trinity for myself. Here’s why.

Tecsun PL-310ET

If this had been the only radio I brought, I would have been more than satisfied. SW signals abound (the war just two countries away was certainly a factor.) A quick hit of the ETM feature at the top of the hour brought in 40-50 listenable signals, with only a scant few broadcasts religious in nature. Even during the day, I could capture 25 easily. With the bandwidth set at 3 kHz, sound was most impressive. While some were the same broadcast on different frequencies, my only real disappointment was the lack of English-speaking broadcasts – but that was to be expected. The PL-310ET scans relatively fast and holds on to strong signals quite nicely.

We stayed with relatives who lived high on a hill not far from Kiel, in the north of Germany. One push of the ETM feature on FM filled the dial with German voices playing mostly English pop music (the eighties apparently a favorite decade there too.) Simply put, the selectivity on this radio is phenomenal. Odd / even frequencies happily sharing adjacent homes on the dial. And with the pre-emphasis on European FM at 50, the sound from this portable was absolute perfection. As a matter of fact, my first complaint about this radio was a bit of harshness on our over-processed FM commercial stations. In Europe, the audio characteristics of classical, pop, rock and talk stations was simply sweet.

My first night on the AM band was a disappointment. One, maybe two signals that didn’t come in very well. Thankfully, I quickly remembered to flip it to 9kHz and – wow! The BBC, Spanish, Italian, and signals that sounded very much like eastern Europe came booming in. I did not expect all of this and can easily say this was the most fun I’ve had band scanning and DXing in a long, long time! Traveling domestically, I’m more apt to load a memory page, but in this situation, the ETM feature was incredibly useful.

For all DXing, I only used the whip and internal antennas. The battery indicator dropped one notch on the second to the last day we were there. The PL-310ET is an absolute true travel performer.

The Tecsun PL-310ET now sits proudly alongside my CCrane Skywave, Digitech AR1780, Eton Executive Satellit (Grundig edition) and the semi-retired Grundig G5. When we travel to London next year, there’s no question this gets packed again.

Sangean PL-210

A radio that became my constant walking companion during Covid. Hand-sized with a really nice on-board speaker for its size. The sensitivity is impressive and considering its PLL circuitry, has excellent selectivity on FM. AM was also impressive for an antenna no more than a half-inch – if that. It went with me to Hamburg, Berlin, Frankfort and Denmark; always just a quick pull from the pocket for a quick scan. To say I like this radio, well, I own three.

DAB-8

My curiosity in DAB was basically zero. One reader actually PM’d me and offered their own DAB receiver, saying I should check it out. (Thank you, Mike, for that generous offer.) This radio sounds great, but has very poor FM reception. (No MW). It does have inputs for mp3 and Bluetooth, so I figured just in case there was nothing to listen to, I could stream something on it. Its small size was the biggest factor in making the trip. Once settled, a quick daytime scan grabbed nine signals easily on DAB and they sounded great. It was the only band that featured more traditional (even country!) music. It’s back in the drawer at home, but I am very glad it made the trip.

Summary

I truly had a blast listening to the various captures on these three radios, the Tecsun being the most impressive and fun. I’m sure many newer models would be excellent choices, but not once did I wish to have something bigger or better. That doesn’t happen on trips very often, so perfection indeed.

My apologies to those looking / hoping for recordings. I stopped recording from the radio back when I opted to purchase 45rpm records rather than record them, complete with DJ patter on my father’s Webcor reel-to-reel. Once I got into the biz, I recorded enough DJ patter to last a lifetime! Again, thanks to everyone for their input.

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Radio Waves: Ofcom London Pirate Stats, RNZ Invests in New SW Transmitters, Public Media Supports Ukraine Refugees, and Migration to DAB+ Spurred by Energy Costs

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Radio Waves:  Stories Making Waves in the World of Radio

Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to Eric Jon Magnuson for summarizing these news items for Radio Waves!

Pirate radio stations operating outside London (Southgate ARC)

In a Freedom of Information request Ofcom were asked to provide details of pirate broadcast radio stations outside of London for the years 2021-2022

Ofcom refused to give names of the stations but they did provide some statistics, see this link.

You can submit a Freedom of Information request to Ofcom online at
https://www.whatdotheyknow.com/new/ofcom

RNZ welcomes Pacific infrastructure investment

Released at 3:19 pm on 19 May 2022

RNZ Chief Executive and Editor-in-Chief Paul Thompson has welcomed the budget investment in RNZ Pacific shortwave transmitters.

In Budget 2022 the Government announced $4.4 million dollars capital funding for a new transmitter for RNZ Pacific.

RNZ Pacific broadcasts into the wider Pacific on shortwave 24 hours a day, collaborating with 22 broadcasting partners across the region. Its current primary transmitter is nearing end of life, and its other transmitter has in effect already been retired.

“The value of the RNZ Pacific service can’t be underestimated. Our voice reaches all parts of the Pacific, at times with critical information such as cyclone warnings. During the Tonga eruption, when the undersea cable was cut, RNZ Pacific short wave was a lifeline source of information,” said Thompson.

This investment secures a productive future for our unique voice. The attraction of the shortwave service is its robustness, and the ability to have the signal travel great distances, and achieve good audiences,” he said.

RNZ Pacific broadcasts enhance the Government’s Pacific strategy as we share our history, culture, politics and demographics. The strategy is underpinned by the building of deeper, more mature partnerships with Pacific Island countries, and by supporting their independence and sustainable social and economic resilience.

Since the ABC ceased its shortwave broadcasting the only other shortwave broadcaster in the region is Radio China. Thompson says RNZ can now start work on its infrastructure development with a new transmitter likely to take approximately 12 months to get in place depending subject to further project planning.

Click here to read at RNZ.

Public Service Media Continue To Mobilize Wide Range Of Support For Ukrainian Refugees (EBU)

More than 14 million people have fled their homes since Russia’s invasion of Ukraine and the war shows no sign of ending. For World Refugee Day on 20 June, we are highlighting some of the issues faced by displaced Ukrainian people – and reaffirming that the support from the EBU and its Members will continue.

That support has manifested across a range of projects:

Air strikes on the TV towers in Kyiv and Rivne underlined the vulnerability of broadcast communications in a war zone. Together with our Members, we have coordinated the supply and delivery of critical equipment such as IP connectivity solutions, satellite phones, AM transmitters, and studio support to enable the uninterrupted transmission of vital news and information.

In these circumstances, being able to rely on accurate news sources is key. Many EBU Members have launched dedicated news services specifically for refugees in their own language, so that they can tap into vital updates from home, wherever in the world they are. Rai News in Italy has a daily news bulletin in Ukrainian; RTBF UKRAINE is a new web-based radio station for Ukrainian refugees in Belgium, with 100% of its content in Ukrainian; and Yle in Finland has a Ukrainian-language news service for providing the latest news bulletins in Ukrainian. Many public media outlets are also re-transmitting content directly from Ukrainian public broadcaster, UA/PBC for Ukrainian refugees.

Providing practical information to help people navigate the uncertainties of settling into new homes has also been a priority and has seen the launch of many dedicated programming and channels: GPB has a hotline for Ukrainians in Georgia; Czech Radio and Radio Prague have launched a podcast, ‘News for Ukrainians in Czech Republic’, that offers practical information for incomers. While ARD in Germany presents How To Deutschland Insta; Swedish Radio’s Ukrainian service for new arrivals includes practical advice on how to access medical care or education facilities for kids and RTP’s online service helps with learning a new language.

For children, displacement through war is particularly traumatic. TVP in Poland has developed a site for kids from Ukraine which, as well as showing selected content in Ukrainian, also presents lessons in learning Polish; ARD and ZDF in Germany have included content in Ukrainian for children, including German-language learning programmes, and Czech Radio has recorded fairytales in Ukrainian.

Noel Curran, Director General, EBU, said “Few of us can understand the trauma of being forced to leave our homes, not knowing when or if we will return. I’m proud to belong to a community that has mobilized a wide range of practical support so quickly while ensuring trusted news and information continues to reach those who need it, wherever in the world they are. World Refugee Day is a moment to reflect on a situation that continues to need targeted support. And to reaffirm our commitment to giving it for as long as it takes.”

Click here to read at the EBU website.

Rising Energy Costs Could Spur Digital Migration (Radio World)

Projected cost reductions cited as reason for Germany to accelerate the migration to DAB+

As energy costs rise, Deutschlandradio Director Sefan Raue sees a further reason to hasten an FM switch-off for Germany.

“We will not be able to afford two terrestrial distribution channels in the long run. The signs are clearer than two or three years ago,” Raue told German press agency dpa, according to Hadelsblatt. “FM is an energy guzzler.”

A public broadcaster, Deutschlandradio is based in Cologne and Berlin and operates several national channels on DAB+ and FM. The channel been steadily replacing its remaining FM transmitters with DAB+; six of its short-range analog transmitters are going dark at the end of June 2022. The broadcaster expects to have at total of 161 locations broadcasting its DAB+ channels nationwide by year-end, reaching some 90% of the German populace. [Continue reading at Radio World…]

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Polish Radio launches programme to help Ukrainian refugees

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(Source: Radio Poland)

Polish Radio launches another programme for Ukrainians (Radio Poland)

Public broadcaster Polish Radio is on Thursday launching a new weekly programme for Ukrainians escaping the Russian invasion and their compatriots residing permanently in Poland.

The hour-long broadcast will be delivered in Ukrainian, airing every Thursday at 7 p.m. on Polish Radio’s mobile app, web player and DAB+ platform, the public broadcaster’s IAR news agency reported.

Listeners will hear advice on where to find help, how to apply for assistance available to refugees, and how to obtain information about their loved ones, according to IAR.

Also, the programme will feature news on how the Polish government, local authorities and charities are working to support refugees from Ukraine, and on Poland’s efforts to facilitate Ukraine’s entry into the European Union and the NATO alliance, IAR reported.

The weekly broadcast is prepared and hosted by journalists from Polish Radio’s External Service, also known as Radio Poland.

‘Countering Putin’s false narrative’

“The priority is to counter the Putin regime’s false narrative,” said Radio Poland’s Director Andrzej Ryba?t.

He added: “We’ll be reporting at length on Polish-Ukrainian relations, as well as the policies of the European Union and NATO. In addition, Ukrainians who had been forced to flee their country will hear about what is happening in the places they had had to abandon as a result of the Russian aggression.”

As the programme develops, it is also set to feature Polish-language courses for Ukrainians seeking shelter in Poland, and items on Ukrainian music and culture, IAR reported.

Ever since the Russian invasion of Ukraine began on February 24, Polish Radio has been airing news bulletins in Ukrainian on several of its channels, as well as launching a 24-hour live audio and video stream about the war on Youtube.

It is also broadcasting the signal of Ukrainian Radio on its web player and DAB+ platform so that the people escaping the Russian attack can listen to programming in their native tongue, executives said.

Poland on Thursday reported it had admitted nearly 2 million refugees fleeing Russia’s invasion of Ukraine.

(pm/gs)

Source: IAR

Click here to read the full article at Radio Poland.

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