Shortwave listening and everything radio including reviews, broadcasting, ham radio, field operation, DXing, maker kits, travel, emergency gear, events, and more
The international service of the Sri Lankan Sri Lanka Broadcasting Corporation (SLBC) recently doubled its Tamil Service airtime to two hours, on 873 kHz AM (medium wave) from Puttalam transmitter. The new schedule is 0130-0330 UTC (7.00 am to 9.00 am IST). This is partly in response to individual efforts of listeners, many in the southern part of India, in Bengaluru. Introducing this change, Colombo International Radio also announced that shortly they are going to use DRM on 1548 kHz! This will be done by is using the old transmitter of Deutsche Welle located in the north of Sri Lanka at Trincomalee. The Sri Lankan public broadcaster has started airing the DRM announcement:
The publicity for the new DRM service is in full swing. See video:
On the occasion of Czech Radio’s centenary, we asked our listeners to let us know where they heard our special programme on that day in order to map Radio Prague International’s broadcast reach today. Here are at least some of the many letters and photos which you have sent us. Thank you to all our loyal fans.
George Jolly, who was listening to our special programme over the internet, wrote from Houston, Texas:
“Thank you so much for the special program today celebrating your 100 years of radio. If I were not so far away, I would surely visit you on Saturday. It means a lot to me that you continue the tradition of the ‘radio magazine’. Hearing the opera excerpt and other recordings from the past was wonderful!
“I love old music and old technology like radio, and I love that you are keeping their spirit alive and new again for today’s world. I am so grateful to celebrate your centenary with you from afar.”
Another listener from the United States is Timothy Marecki, who wrote us from New Port Richey in Florida: Continue reading →
I started this series several months ago with pictures of Ecos del Torbes and other stations in San Cristóbal, Venezuela. This time I want to take you to the other places I visited on that trip to Andean Venezuela in January 1995.
When I started DXing in the early 1970s, Venezuelans were the most commonly heard Latin American shortwave stations. The 90- and 60-meter bands were full of them and there were more than a few to be heard in the 49- and even 31-meter bands. But the Venezuelans began abandoning shortwave before other countries in the region and by the late 1970s their numbers had been considerably thinned. Only a handful remained in the early 1990s.
This radio dial [click to enlarge] goes back to a time when Latin American stations were found all over the radio bands.
One of the last Venezuelan stations to leave shortwave in the 1990s was Radio Valera in the busy commercial city of Valera.
For decades, Radio Valera was one of the best heard and most consistent Venezuelan stations on 60 meters. Roque Torres Aguilar, waving on the left side, was station manager at the time of my visit.
I’ve found listings in DX publications for their 4840 kHz frequency as far back as 1946.
I was given this 59th anniversary key chain when I visited Radio Valera in January 1995. So the station must have begun around 1935.
Station studio in 1995.
A second shortwave station in the state of Trujillo was Radio Trujillo in the nearby town of the same name. Broadcasting on 3295 kHz, they were one of the easier catches in the 90-meter band in the early 1970s but were gone by the late 1970s. Continue reading →
Radio Waves: Stories Making Waves in the World of Radio
Welcome to the SWLing Post’sRadio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!
Many thanks to SWLing Post contributors Dave Porter, Mark Hirst, Stuart Smolkin, Bill Forcier, and “Mangosman” for the following tips:
talkSPORT – Proposals to reduce AM Coverage (OfCom)
talkSPORT Limited (“talkSPORT”) submitted a request to reduce the coverage of its national AM
(medium wave) commercial radio service from 93% to 89.9%, by ceasing transmissions from the
following four of its twenty-two transmitter sites:
Dumfries (Dumfries & Galloway)
Kingston upon Hull (East Riding of Yorkshire)
Fern Barrow (Bournemouth)
Greenside Scalp (Tayside)
We consulted on the request with a preliminary view that we were minded to approve it. We have had regard to the responses we have received in reaching our decision. We received two responses agreeing with the proposal and four disagreeing. In section 3 below, we summarise stakeholders’ comments, assess them and outline the conclusions we have reached.
What we have decided – in brief
Ofcom has decided to approve the request submitted by talkSPORT Limited to reduce its AM
(medium wave) coverage by ceasing transmissions from four of its transmitter sites.
In times of emergency AM Radio could be your only source of information.
AM Radio is part of the Emergency Alert System, so critical life saving information during hurricanes, floods, blackouts and other disasters are delivered to you via AM Radio.
Certain car manufacturers have dropped AM Radio from their current and future vehicles.
This profit motivated move by car manufacturers is dangerous!
Sign the petition to maintain broadcast AM Radio in current and future vehicles, including electric vehicles.
Note: The Washington Post article about AM being removed from cars is behind a paywall. The link provided may give you free access.
America’s love affair between the automobile and AM radio — a century-long romance that provided the soundtrack for lovers’ lanes, kept the lonely company with ballgames and chat shows, sparked family singalongs and defined road trips — is on the verge of collapse, a victim of galloping technological change and swiftly shifting consumer tastes.
The breakup is entirely one-sided, a move by major automakers to eliminate AM radios from new vehicles despite protests from station owners, listeners, first-responders and politicians from both major parties.
Automakers, such as BMW, Volkswagen, Mazda and Tesla, are removing AM radios from new electric vehicles because electric engines can interfere with the sound of AM stations. And Ford, one of the nation’s top-three auto sellers, is taking a bigger step, eliminating AM from all of its vehicles, electric or gas-operated.
Some station owners and advertisers contend that losing access to the car dashboard will indeed be a death blow to many of the nation’s 4,185 AM stations — the possible demise of a core element of the nation’s delivery system for news, political talk (especially on the right), coverage of weather emergencies and foreign language programming.
“This is a tone-deaf display of complete ignorance about what AM radio means to Americans,” said Michael Harrison, publisher of Talkers, a trade journal covering the talk radio industry. “It’s not the end of the world for radio, but it is the loss of an iconic piece of American culture.” [Possible paywall: Continue reading…]
TAMPA, Fla. — Special operations signals intelligence teams say they need smaller, more versatile gear that gathers and shares data on the breadth of radio frequencies in all domains — land, sea, air and now space.
The mission has shifted dramatically as the United States ratchets up competition in the frequency bands with peer competitors like Russia and China, a far cry from deciphering mobile phone signals from violent extremists, officials said.
That’s one request to industry within a small slice of a larger portfolio under U.S. Special Operations Command Program Executive Office-Special Reconnaissance.
On Wednesday, a panel of program managers ticked off the varied sensor, communications and intelligence gear the office wants during the Global SOF Foundation’s SOF Week here.
Their efforts to upgrade and improve collection and dissemination of data continues in an ever-more crowded radio frequency spectrum across, and beyond, the globe. [Continue reading…]
Who Uses DRM?
The sky was blue and the boats were swaying in the harbor, but the participants from countries as far apart as India, Brazil, Denmark, South Africa — and other African countries like Egypt, Indonesia, Hungary, Germany and the UK — had other fish to fry.
They wanted to know about DRM in India, where more pure DRM hours are being carried, including dedicated content like news and cricket. More MW transmitters will be inaugurated there, but the decision for the FM digitization is still pending. Last year, Ernst & Young consultants concluded in a study for the I@B Ministry that radio digitization is not only technically beneficial, but also financially. “Digital Radio can help grow the Radio Segment in India by three times over five years.” The local automotive industry, with almost six million new Indian cars equipped with DRM radios, is also very interested in the decision. The big Indian and international car brands, eying a return on their huge investments, are ready to quickly software upgrade the existing DRM AM receivers to digital DRM FM. [Continue reading…]
Many thanks to SWLing Post contributor, Gayle Van Horn (W4GVH), who shares the following announcement:
20th Edition of the Global Radio Guide (Summer 2023) Now Available
While the world looks on in awe at dazzling displays of aurora, reaching ever closer to our planet’s equator, radio hobbyists are equally excited at the impacts our sun’s increased activity has had on the radio spectrum.
From enhanced propagation on the higher HF bands, to more frequent auroral activity on mediumwave and even hobbyists tuning in to the ionosphere itself through ‘natural radio’, Solar Cycle 25 is proving to be quite the motivator for radio hobbyists to reach for their radios.
If you want to know where and how to tune-in, Gayle Van Horn’s (W4GVH) Amazon bestselling Global Radio Guide (now in its 20th edition for the Summer of 2023) as it has all the details to make sure you miss none of the action.
Larry Van Horn (N5FPW) helps break down exactly what the increased solar activity means for radio listeners on the high frequency (HF) shortwave bands. Think there are no shortwave broadcasters left to hear? Think that military and other utility communications have dried up on HF? Larry points you to the right spots on the band that prove otherwise.
As one of the only remaining publications available with international broadcast frequencies and schedules, the Global Radio Guide (GRG) puts everything a radio enthusiast needs to navigate the action right in their hands.
With the help of the GRG, you can take advantage of enhanced propagation to tune in shortwave broadcast stations from worldwide hotspots such as China, Cuba, India, Iran, North/South Korea, and many other counties. If you have a shortwave radio receiver, SDR or Internet connection, pair it with this unique radio resource to know when and where to listen to the world.
This newest edition of the GRG carries on the tradition of those before it with an in-depth, 24-hour station/frequency guide with schedules for selected AM band, longwave, and shortwave radio stations. This unique resource is the only radio publication that lists by-hour schedules that include all language services, frequencies, and world target areas for over 500 stations worldwide.
The GRG includes listings of DX radio programs and Internet website addresses for many of the stations in the book. There are also entries for time and frequency stations as well as some of the more “intriguing” transmissions one can find on the shortwave radio bands.
In addition to the global hotspots, the GRG brings the world to you from other places on the radio dial.
The action isn’t limited to just HF though. From the top down, solar cycle 25 has radio signals bouncing all over the ionosphere.
In fact, you can even tune in to the ionosphere itself as solar energy interacts and bends our magnetosphere through the wonders of very low frequency “natural radio.” Learn about sferics, tweeks, whistlers and the magical dawn’s chorus and how you can listen in with your own ears!
A little further up the band, mediumwave frequencies are alive with signals from the tropics. With each dip of the auroral field closer to the equator, mediumwave signals from the tropic region become enhanced. Loyd Van Horn (W4LVH) discusses what to look for and busts propagation myths for the mediumwave and FM broadcast bands.
With enhanced propagation on HF, there is an increased diversity of signals to hear from various countries. To help, Fred Waterer brings a primer on the when and where of languages one can tune into on the shortwave bands.
Whether you monitor shortwave radio broadcasts, mediumwave, amateur radio operators, or aeronautical, maritime, government, or military communications in the HF radio spectrum, this book has the information you need to help you to hear it all. Teak Publishing’s Global Radio Guide “brings the world to you.”
You can find this edition of the Global Radio Guide, along with all our titles currently available for purchase, on the Teak Publishing Web site at www.teakpublishing.com.
The 20th edition of the Global Radio Guide e-Book (electronic book only, no print edition available) is available worldwide from Amazon and their various international websites at
The price for this latest edition is US$8.99. Since this book is being released internationally, Amazon customers in the United Kingdom, Germany, France Spain, Italy, Japan, India, Canada, Brazil, Mexico and Australia can order this e-Book from Amazon websites directly servicing these countries. Customers in all other countries can use the regular Amazon.com website to purchase this e-Book.
You can read any Kindle e-Book with Amazon’s ‘free’ reading apps on literally any electronic media platform. You do not have to own a Kindle reader from Amazon to read this e-book. There are Kindle apps available for iOS, Android, Mac and PC platforms. You can find additional details on these apps by checking out this link to the Amazon website at: https://amzn.to/42lvxR9
Tony has solved the hum problem that plagues AM part 15 transmitters.
This model comes ready to go, just hook it up. It meets all Part 15 requirements.
Enjoy listening to the 1940’s radio station (for example) on your own AM station.
Comes set up for 1600 kHz but Tony will tune it to whatever you
want or you can adjust the dip switch yourself.
Has a built in stereo to mono converter and full sound range audio.
Hurry, the Sale ends soon.
State association questionnaire finds one in three AM stations have no FM translator
The National Alliance of State Broadcasters Association (NASBA) is reporting insights it discovered after polling AM stations about the removal of over-the-air AM in new cars.
The data collected from more than 1,000 AM stations shows that many do not have an FM translator and/or do not stream their signals over internet connections, NASBA says. The group is hoping to use the information to rally proponents of AM to help convince companies like Ford, Mazda, BMW and others to keep reception of AM in their new vehicles.
NASBA says the automakers “are cutting corners on expensive new electric vehicles” by eliminating AM radios, which means more than 4,000 AM stations in the United States are at risk. But its survey results show that AM radio across the country provides a diverse mix of music and talk and is a vital link for millions of listeners. [Continue reading…]
“It was the music without the spots, that made FM,” says a reader
The comments written by Dave Bialik in the latest Radio World hits the nail right on the head. The average person, which is about 95% of the population, couldn’t care less about audio fidelity. The days of “audiophiles” are gone. The downturn of AM listenership is almost exclusively due to poor programming, poor content. Yes, FM in its early days was mostly easy listening, beautiful music and classical music. It catered to the audiophiles, and had a very limited audience even though it sounded great and in 1963 by offering multiplex stereo.
Once a few of the FM guys realized people were fed up with the 45 minute commercial breaks on AM stations with popular music, the format was adopted on FM, but with none or few commercials (because no one wanted to advertise on FM). Once people found out they could get the rock and pop music on FM without all the talk, the band switch started taking place. It had nothing to do with audio — remember at this time people were buying 8-track tapes by the millions and they were technically several steps below AM radio. It was the music without the spots, that made FM. Once that happened, most of the large and middle market stations threw all of their eggs into the FM basket and put something on the AM just to hold the license.
I once worked for an AM station owned by one of the large groups. In its heyday, in the 50’s–70’s, it was THE top 40 station. In a market of 40 stations, it had a 60 share. Once the group owners bought a big FM signal, they blew the AM away and loaded it with satellite talk. After a few years, that 60 share was .5 — yes point 5. After a few years of this, and it becoming unsellable, one of the staff suggested to management that they should go back to a music format playing the hits of the 50’s and 60’s (this was in 2002). [Continue reading…]
The BBC is suing the owner of a huge telecoms mast that burnt down almost two years ago, leaving more than one million households without TV or radio services.
A blaze destroyed the Bilsdale transmitter on the North York Moors in August 2021, sparking chaos across the region.
More than one million homes in North Yorkshire, Teesside and County Durham were unable to access FM radio or Freeview, with many disconnected for months.
The BBC has now filed a lawsuit against Arqiva, the company which owns the mast, saying it has failed to fully restore services more than 18 months later.
The public service broadcaster has accused the infrastructure group of breach of contract and is seeking tens of millions of pounds in damages. [Continue reading…]
Czech Radio celebrates a significant anniversary this year. 18 May 2023 marks exactly 100 years since the start of regular radio broadcasting in the Czech Republic, then Czechoslovakia, when the private company Radiojournal began broadcasting from a humble scout tent in Prague’s Kbely.
For the occasion of its monumental jubilee, Czech Radio has prepared a rich programme for the public, new broadcasting highlights and a unique exhibition at the National Technical Museum. Celebrations throughout the year will illustrate the remarkable journey of the most trusted public service media in the Czech Republic.
“Czech Radio will celebrate the 100th anniversary of the start of regular broadcasting. It is an honour for me to be at the helm of this public institution at a time when we are recapitulating important past moments, revisiting our history and remembering outstanding radio personalities. But this extraordinary anniversary is also an opportunity for us to show that 100 years of radio broadcasting is only the beginning. We are ready to launch the next century of our existence with new programming projects and technological innovations. The entire project of our anniversary celebrations aims to support the position of Czech Radio on the media market and also to show that it is an important partner for other institutions. I believe that with an imaginative programme we will not only delight current listeners, but also attract new ones,” said René Zavoral, Director General.
The celebrations will officially commence on 10 March with a formal ball at the Municipal House in Prague, where the Czech Radio Symphony Orchestra, the Gustav Brom Radio Big Band and musical guests Ewa Farna, Mirai, Dara Rolins and No Name will perform.
On the day of its 100th birthday, Czech Radio will hold a grand concert in the Riegrovy Sady park for listeners and the general public. The concert will include performances by the band Chinaski, as well as musicians Aneta Langerová, Mirai Navrátil and Marek Ztracený, who will be the first performer broadcast on Czech Radio in its second century of existence. [Continue reading…]
