Category Archives: International Broadcasting

CTV: “How shortwave radio is resurfacing as a tool in Ukraine”

Many thanks to SWLing Post contributor, William Lee, who shares this story from CTV which focuses on the resurgence of interest in shortwave radio following the Russian invasion of Ukraine.

This item features our good friend, John Figliozzi; author of the Worldwide Listening Guide:

How shortwave radio is resurfacing as a tool in Ukraine (CTV)

In a world of mobile phones, satellites and the internet, some old school technology is making a major comeback. The shortwave radio, used by spies for decades to send encrypted messages, is being resurrected for the war in Ukraine.

According to Dr. Andrew Hammond, curator and historian at Washington, D.C.’s International Spy Museum, the shortwave radio “is a classic tool that was used for espionage.

“With a shortwave radio like this, you can transmit information over huge distances,” he told CTV National News.

But now, decades later, shortwave is coming back into use. [Continue reading…]

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Radio Waves: DRM Part of BBC Story, Antennas and Smith Charts, Shortwave “Hot Debate,” Carrington Event, and “Deep Freeze”

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!


DRM Is Part of the BBC World Service Story (Radio World)

The iconic broadcaster has been supportive of the standard for over 20 years

The author is chairman of the DRM Consortium. Her commentaries appear regularly at radioworld.com.

Our old friend James Careless studiously ignores DRM once more in his well-researched, but to our minds incomplete article “BBC World Service Turns 90” in the March 30 issue.

As an ex-BBC senior manager, I would like to complete the story now that the hectic NAB Show is over.

Having lived through and experienced at close quarters the decision to reduce the BBC shortwave about 20 years ago, I can confirm that the BBC World Service decision to cut back on its shortwave footprint — especially in North America, where reliable, easy-to-receive daily broadcasts ceased — has generated much listener unhappiness over the years.

In hindsight, the decision was probably right, especially in view of the many rebroadcasting deals with public FM and medium-wave stations in the U.S. (and later other parts of the world like Africa and Europe) that would carry news and programs of interest to the wide public.

But BBC World Service in its long history never underestimated the great advantages of shortwave: wide coverage, excellent audio in some important and populous key BBC markets (like Nigeria) and the anonymity of shortwave, an essential attribute in countries with undemocratic regimes.

BBC World Service still enjoys today about 40 million listeners worldwide nowadays. [Continue reading…]

The Magic of Antennas (Nuts & Volts)

If you really want to know what makes any wireless application work, it is the antenna. Most people working with wireless — radio to those of you who prefer that term — tend to take antennas for granted. It is just something you have to add on to a wireless application at the last minute. Well, boy, do I have news for you. Without a good antenna, radio just doesn’t work too well. In this age of store/online-bought shortwave receivers, scanners, and amateur radio transceivers, your main job in getting your money’s worth out of these high-ticket purchases is to invest a little bit more and put up a really good antenna. In this article, I want to summarize some of the most common types and make you aware of what an antenna really is and how it works.

TRANSDUCER TO THE ETHER
In every wireless application, there is a transmitter and a receiver. They communicate via free space or what is often called the ether. At the transmitter, a radio signal is developed and then amplified to a specific power level. Then it is connected to an antenna. The antenna is the physical “thing” that converts the voltage from the transmitter into a radio signal. The radio signal is launched from the antenna toward the receiver.

A radio signal is the combination of a magnetic field and an electric field. Recall that a magnetic field is generated any time a current flows in a conductor. It is that invisible force field that can attract metal objects and cause compass needles to move. An electric field is another type of invisible force field that appears between conductors across which a voltage is applied. You have experienced an electric field if you have ever built up a charge by shuffling your feet across a carpet then touching something metal … zaaapp. A charged capacitor encloses an electric field between its plates.

Anyway, a radio wave is just a combination of the electric and magnetic fields at a right angle to one another. We call this an electromagnetic wave. This is what the antenna produces. It translates the voltage of the signal to be transmitted into these fields. The pair of fields are launched into space by the antenna, at which time they propagate at the speed of light through space (300,000,000 meters per second or about 186,000 miles per second). The two fields hang together and in effect, support and regenerate one another along the way. [Continue reading…]

Smith Chart Fundamentals (Nuts & Volts)

The Smith Chart is one of the most useful tools in radio communications, but it is often misunderstood. The purpose of this article is to introduce you to the basics of the Smith Chart. After reading this, you will have a better understanding of impedance matching and VSWR — common parameters in a radio station.

THE INVENTOR
The Smith Chart was invented by Phillip Smith, who was born in Lexington, MA on April 29, 1905. Smith attended Tufts College and was an active amateur radio operator with the callsign 1ANB. In 1928, he joined Bell Labs, where he became involved in the design of antennas for commercial AM broadcasting. Although Smith did a great deal of work with antennas, his expertise and passion focused on transmission lines. He relished the problem of matching the transmission line to the antenna; a component he considered matched the line to space. Continue reading

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Radio Waves: Radio Liberty Journalist Killed in Ukraine, Group Asks FCC to Revoke License, Labor & Shortwave Restoration, and “The Earth Is An Image”

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!


Ukraine war: Russian strike on Kyiv kills reporter Vira Hyrych (BBC News)

A journalist working for Radio Liberty in Ukraine was killed in Russian rocket strikes on Kyiv on Thursday evening, the station has confirmed.

Vira Hyrych was at home when a rocket hit the residential building where she lived in the capital, it says. Her body was pulled from the wreckage on Friday.

She “will be remembered for her professionalism and dedication to our mission”, the US-funded station says.

Kyiv was hit as UN Secretary General António Guterres was visiting the city.

The UN chief – who only a day earlier had held talks in Moscow with Russian President Vladimir Putin – said he was “shocked” by the Russian attack.

Ukrainian President Volodymyr Zelensky accused the Kremlin of trying to humiliate the UN, while Kyiv Mayor Vitaliy Klitschko said the Russian leader had shown “his middle finger” to Mr Guterres.

Moscow has confirmed it hit Ukrainian targets, but has not commented on the strike on the building.

“We are deeply saddened by the death of our Ukrainian Service staffer Vira Hyrych in Kyiv overnight,” Radio Liberty President Jamie Fly said in a statement.

“We are shocked and angered by the senseless nature of her death at home in a country and city she loved. Her memory will inspire our work in Ukraine and beyond for years to come.” [Continue reading…]

Group Wants to Shut Down Garziglia Station (Radio Ink)

A group calling itself the Ukrainian Congress Committee of America has filed a petition with the FCC asking the Commission to revoke the license of the translator owned by John Garziglia. FM translator W288BS in Reston, Virginia rebroadcasts WZHF-AM in the Washington DC metro which carries Radio Sputnik. Continue reading

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Radio Waves: AMARC Africa, Discussing HD Radio Australia, Learning by Doing, and RadCom Seeking New Editor

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!


Study recommends revival of AMARC Africa (Red Tech)

HARARE, Zimbabwe — The unavailability of critical information about community radio in Africa has led the University of the Witwatersrand(Wits) journalism department and a consortium of media, civil rights and business NGOs — Fojo Media Institute, Civicus, Civil Rights Defenders, Defend Defenders and Hub Afrique — to carry out a study entitled “Mapping Community Radio in Sub-Saharan Africa.”

“Even basic information is hard to get, and it is often not even certain how many stations are on air. Operations collapse, and others start, with hardly anybody outside the immediate environment noticing. Even the licensing authorities sometimes struggle to keep accurate records,” revealed Prof. Franz Kruger, head of Wits Journalism.

Conducted by Jacob Ntshangase, the head of Wits Radio Academy, the study sought to gather information and better understand the community radio landscapes in different parts of Sub-Saharan Africa to identify needs, opportunities and potential partners for developing a program of support for community radio on the continent. [Continue reading…]

Can the HD Radio experience be of use in regional Australia. (RadioInfo)

The 2022 NAB Show is already underway in Las Vegas, and fresh from presenting some new research on HD radio in the US, Xperi SVP Broadcast Radio, Joe D’Angelo (pictured), sat down with radioinfo’s Wayne Stamm.

Joining the conversation was Commercial Radio Australia’s Head of Digital, Jamie Chaux, to add an Australian perspective and view on what might be gained from the HD experience in the States.

radioinfo: We’re talking about a couple of the presentations that are going to be made at NAB this year. Joe you’ve already done one of those presentations and taken a look at some very interesting studies that have been done recently about the penetration of HD radio, especially here in the US.

Joe D’Angelo: Yes, I finished a session today on actually UX guidelines (NABA Radio In-car User Experience) for in-car receiver design and that that went very well. And what’s really exciting about not only the work of the UX group, but the progress of HD radio, is we’re now at 85 million vehicles on the road.

And so we surveyed users of the technology and 91% of them came back and said that HD radio has significantly improved their radio listening experience.

74% of people said they would not buy another new car unless it had HD radio, which is very affirming.

Read more at: https://radioinfo.com.au/news/can-the-hd-radio-experience-be-of-use-in-regional-australia-nabshow/ © RadioInfo Australia

Learning Electronics By Just Doing It (Southgate ARC via Hackaday)

Learning anything new, especially so broad and far reaching as electronics, can be hard. [IMSAI Guy] knows this because he gets asked regularly ‘how do I learn electronics?’ Many of you reading this will have a few ideas to pass along (and we encourage you to share your take on it in the comments below) but there is an even greater number of people who are asking the same question, and [IMSAI Guy]’s take on it is one that this particular Hackaday writer can relate to.

According to [IMSAI Guy], an excellent place to start is the ARRL Handbook. The ARRL Handbook is an electronics and RF engineering guide published by the Amateur Radio Relay League in the US. It’s a wonderful reference, and past editions can be had very inexpensively and are every bit as handy. Many hams will have a copy they could be talked out of, and you can likely find one at your local library. Where to start in the Handbook, then?

[IMSAI Guy] recommend starting with whatever catches your fancy. As an example, he starts with Op Amps, and rather than diving straight into the math of how they work or even worrying to much about what they are- he just builds a circuit and then plays with it to intrinsically understand how it works, a “learn by doing” approach that he has found extremely helpful just as many of us have. We also appreciated is very straightforward approach to the math: Don’t bother with it unless you need to for some reason, and definitely don’t start by learning it first.

Read the full article and watch the video at:
https://hackaday.com/2022/04/25/learning-electronics-by-just-doing-it/

RadCom Managing Editor role (Southgate ARC via the RSGB)

As previously announced, RadCom Editor Elaine Richards, G4LFM is to retire in the summer and there will be a vacancy for a person to edit RadCom, the Society’s journal and one of the most respected amateur radio publications in the world.

The successful candidate will need to show demonstrable experience of producing professional and technical publications in both print and digital formats as they will need to take the entire co-ordinated portfolio forward and exploit new media opportunities.

The role also includes overseeing the publication of RadCom Basics and RadCom Plus with their editors, as well as being part of the team that puts together GB2RS news each week.

The role is being advertised by Redwood Publishing Recruitment and is also on the Guardian Jobs website and LinkedIn. If you’d like an informal chat about the role, please contact the General Manager via [email protected]

All applications must be made via the Redwood website: https://www.redwoodrecruitment.com


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Radio Waves: First BNR Overseas Broadcasts, Russian Milcomm Intercepts, Mount Merapi Community Radio, and Saskatchewan’s Oldest Station Turns 100

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!


The fascinating story of the first overseas broadcasts BNR (Radio Bulgaria)

In 1936 BNR, then under the name of Radio Sofia, started broadcasting on short waves via the ELZA transmitter (the abbreviation coming from the radio station’s international code – L-Z-A). The same year the radio started broadcasts to abroad.

In 1936, information about Bulgaria could only be heard in Bulgarian and in the artificially created language Esperanto. It was after 1 May 1937, when programs began to be broadcast in French, German, English and Italian.

In the spring of 1938, broadcasts for foreign audiences were further developed to include “Special Broadcasts for Some European Countries”.

What was special about these was the advance publicity which the radio made in the countries for which the broadcast is intended. Such publicity was carried out through the legations, business representatives, foreign radio stations and newspapers so as to attract the attention of listeners abroad in advance.

Authors and hosts of the first broadcasts abroad were free-lance collaborators, among whom were legendary Bulgarian journalists and intellectuals like Petar Ouvaliev, Georges Milchev, Bory Ganchev, Mikhail Hadzhimishev and others.

After 9 September 1944, when the communist regime seized power in Bulgaria, Radio Sofia’s foreign language broadcasts continued to air news bulletins and commentaries on events in Bulgaria and around the world. From 1945 to 1950, Bulgarian Radio Sofia broadcast 10-minute news bulletins in Romanian, Serbo-Croatian, Macedonian, Greek and Turkish.

The Bulgarian Radio began broadcasting in Turkish language in July 1945. The programme targets the Turkish population in this country as well as listeners from neighbouring Turkey. It was run by Chudomir Petrov, BNR Deputy Director and head of the Foreign Information Department.

There were two 10-minute broadcasts each day. Editor was Boris Pilosoff, who then also led the French-language broadcasts. The first hosts of the program in Turkish were Ulfet Sad?kova, R?za Mollov, Mustafa Bekirov, Sali Baklaciev among others.

The Greek-language emissions started in the first half of 1948. By then, democratic power had already been installed in Greece under US and Western European pressure. The Greek Communist Party’s resistance movement was destroyed and many Greek functionaries found refuge in Bulgaria. Curiously, it was with their help that the Greek editorial board was set up.

Similarly, after the political events in Yugoslavia and Albania in 1948, political immigrants seeking protection from the Bulgarian communist government created broadcasts in Serbo-Croatian and Albanian.

The first editors and speakers of Serbo-Croatian language had their quarters at 10 Danube Street in Sofia. There they prepared and translated the material for the Bulgarian radio broadcasts.

Based on historical accounts collected by Bozhidar Metodiev – founder and curator of the BNR Museum.

To be continued.

Compiled by: Krasimir Martinov

Editor: Darina Grigorova

English version: Elizabeth Radkova

Clcik here to follow this series on the BNR website.

How does Ukraine keep intercepting Russian military communications? (NPR)

Russia is regarded as one of the world’s most advanced countries when it comes to anything and everything related to spying, and that includes secretive, high-tech military communications.

For Russian leader Vladimir Putin, a former intelligence officer, this is a particular point of pride. Yet Russia’s reputation has taken a major blow with the often bumbling way the military has handled communications in Ukraine.

Here’s a look at how the Ukrainians have effectively countered the Russians on multiple fronts:

Q. Ukraine keeps publicly releasing what it says are intercepted Russian communications from the battlefield. Wouldn’t Ukraine want to keep this under wraps?

Ukraine feels there are huge public relations benefits in releasing intercepted material that’s either embarrassing to Russia or points to Russian wrongdoing, possibly even atrocities.

Ukraine’s military intelligence recently put out audio on social media, saying that as two Russian military members were speaking, one called for Ukrainian prisoners of war to be killed.

“Keep the most senior among them, and let the rest go forever. Let them go forever, damn it, so that no one will ever see them again, including relatives,” a voice says on the tape. [Continue reading at NPR…]

Hot rocks, smouldering ash: Community radio a vital source of information around Indonesia’s Mount Merapi (Channel News Asia)

YOGYAKARTA, Indonesia: With a soft, soothing voice, Mujianto greeted his listeners before reading out an important update from the volcanologists at Indonesia’s Center for Geological Disaster Research and Technology Development (BPPTKG).

Mount Merapi, located just 4km from Mujianto’s village in Boyolali Regency, Central Java province, continued to show signs of heightened activity, he warned.

Since 2019, the mountain has been hurling glowing hot rocks from deep inside its magma chamber. Occasionally, Merapi erupted, spewing a column of smouldering ash high into the air and blanketing nearby villages in black and grey soot.

“People are advised not to conduct any activity in potentially hazardous areas,” Mujianto, who like many Indonesians goes with one name, told his listeners, concluding his announcement.

A farmer by day and an amateur radio DJ by night, Mujianto and six others at MMC FM have been providing residents of Samiran village with information about the dangers posed by Merapi, Indonesia’s most active volcano, as well as educating them on disaster mitigation since 2002.

MMC stands for Merapi Merbabu Community, with Merbabu being another volcano north of Merapi. Mujianto’s MMC FM is one of eight community radios run by people living on the slopes of Merapi, which straddles along the border of the Central Java and Yogyakarta provinces. [Continue reading…]

Oldest radio station in Saskatchewan turns 100 (Discover Humboldt)

It is thought to be the fourth oldest radio station in Canada, and it is the oldest radio station in Saskatchewan. This weekend, Moose Jaw’s CHAB is celebrating 100 years on the air.

The story started in 1922 – April 23rd, 1922 when, after many meetings, planning and anticipation, 10-AB began broadcasting. According to Broadcasting-History.com, the Moose Jaw Amateur Radio Association “had planned originally to operate the station, but found they couldn’t afford to run it, so handed it over to the Kiwanis Club. 10-AB was licensed as a non-commercial station at 1200 kHz with 50 watts of power.”

One hundred years later in 2022 the signal at 800 on the AM radio dial booms across the province and into the northern United States with 10,000 watts of power with studios located atop Main Street in Moose Jaw, Saskatchewan, broadcasting through a transmitter located near Pasqua, just southeast of Canada’s “Most Notorious City”.

It was in the fall of 1922 that the Kiwanis Club turned 10-AB back to the re-organized Moose Jaw Radio Association and in 1924 the studio was moved from the old YMCA building to the top floor of the Bellamy Furniture Store, a building which still stands to this day, having been turned into an apartment block on Main Street, downtown.

In 1931 there was another move to new studios at The Grant Hall Hotel, a lovely, historic building that has been completely refurbished.

Financial struggles in 1933 would lead to 10-AB leaving the air on November 11th. The history books tell us that Rudy Vallee “provided the background to the sign-off singing I’m Heading for the Last Round-Up”. It was just a few weeks later when 10-AB returned to the air as CHAB after being issued a commercial broadcasting license by the federal government. Carson Buchanan, the secretary of the Amateur Radio Association, would own the radio station with partners and become the general manager at CHAB.

It was in 1937 that one of the first true radio stars to come out of Moose Jaw would begin his career. Elwood Glover got his start at CHAB, working for $5.00 a week. Glover would later move on to become CBC Radio’s Chief Announcer.

In fact, CHAB was an affiliate of the CBC from 1933 through 1962 when CBC’s Dominion Network folded and they became an independent station. [Continue reading…]

 


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Towers destroyed at Moldovan station relaying Vesti FM and Radio Rossii

Many thanks to SWLing Post contributor, Wlodek, who writes:

I just saw the news [below] that the antennas of the transmitter that broadcast Russian propaganda Vesti FM and Radio Russia on 1413 kHz, 999 kHz and 621 kHz were destroyed.

Ministry of the Interior of the Pridnestrovan Moldovan Republic

April 26, 2022

In the early morning of April 26, two explosions thundered in the village of Mayak, Grigoriopol district: the first at 6:40, the second at 7:05.

Law enforcement officers and emergency services of Pridnestrovie were immediately sent to the scene. Grigoriopol militiamen cordoned off the territory of the Mayak radio and television center, sappers of the Ministry of Defense began to examine all the objects of the PRTC.

As of 9 am, it is known that the two most powerful antennas were out of order: one – megawatt, the second – half-megawatt. Both rebroadcast RF radio.

None of the PRTC employees and local residents were injured.

PRTC – Pridnestrovian radio and television center. This is one of 14 radio transmitting centers of the former USSR.

The signal from the PRTC can be relayed to the USA, the Middle East and Latin America. The radio center was built in the late 60s.


Also, SWLing Post contributor London Shortwave, share a link to this news article with more detail.

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Radio Waves: Border Blaster Early Days, Resistance on the Radiowaves, Towers With Flared Skirts, and Palau Restores AM

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!


In border radio’s early days, psychics and mystics ruled the airwaves (Mexico News Daily)

Charlatans originally built powerful ‘border blaster’ stations to evade scrutiny by US authorities

In radio’s early decades, among the oddball attractions found on the airwaves from 1920 to 1940 included a husband-and-wife team of psychics broadcasting from the U.S.-Mexico border under the stage names of Koran and Rose Dawn who became so popular that their extensive following helped them create a secondary income source: an organization called The Mayan Order.

Those who applied for membership and received its periodicals, the founders suggested, could harness the ancient Mesoamerican civilization’s secrets.

The pair were just two of the many psychics and other broadcasters of questionable integrity on the airwaves along the Rio Grande during radio’s beginnings. These characters built “border-blaster” stations of such epic size and scope that they could transmit from the Mexican side of the border into the United States.

Author John Benedict Buescher’s new book, Radio Psychics: Mind Reading and Fortune Telling in American Broadcasting, 1920–1940, unearths Koran and Rose Dawn’s forgotten story, as well as those of about 25 other border-blaster radio personalities on the Rio Grande who were heirs to a longtime American fascination with the occult.

“I was surprised how really dominant this stuff was in the early days of radio,” Buescher said. “Radio historians typically have just waved it off, not really focused on it, didn’t really take it seriously.” [Continue reading…]

Ukraine’s resistance on the radiowaves (DW Video)

Ukraine is fighting with more than weapons. The airwaves are also a frontier. Ukrainian computer specialists and radio operators have managed to jam Russian communications or intercept them. revealing some shocking details of the war’s brutality.

Click here to watch the view at DW’s website.

Why Well-Dressed Towers May Wear Flared Skirts (Radio World)

Cox, Dawson explore the benefits of umbrella-spoke feed for MW towers

Ben Dawson and Bobby Cox will talk about flared skirts at the NAB Show.

“A flared skirt is a set of symmetrically spaced cables around the tower, which attach electrically near the top of the tower, extend outward from the tower along a path similar to the top guy cables, and then turn back in toward the tower base at a point roughly halfway down the tower,” said Cox, senior staff engineer at Kintronic Labs.

“Insulators at this midpoint insulate the cables from ground. The cables terminate on an insulated feed ring encircling the tower base above ground level, similarly to a conventional skirt feed. The antenna is driven between this feed ring and RF ground. The resulting flared skirt takes the shape of a diamond, looking rather like umbrella spokes.”

These systems are used to provide a feed arrangement for grounded towers that is mechanically simple but has certain attractive aspects.

“The wide bandwidth characteristics of the flared skirt make these antenna designs extremely useful for multiplexing several AM stations onto a common antenna,” said Dawson, consultant engineer at Hatfield & Dawson. [Continue reading…]

Palau restores AM radio service (RNZ)

After erecting a new tower Palau’s state broadcaster has restored its AM radio service.

The previous AM tower was destroyed during Typhoon Bopha, in 2012.

Rondy Ronny, head of programming said that the new AM tower and radio service will benefit all the 16 states of Palau.

“A lot of the outlying states are not able to connect into the internet and just don’t have that capability or have very high tech phones like how we do here in Koror. People don’t expect people from Angaur, from Babeldaob to be on their phones all the time.”

Ronny said that the new tower will be crucial to Palauans during natural disasters. [Continue reading at RNZ…]


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