Tag Archives: Morse Code

Radio Waves: Radio Martí, SDRs for Ukraine, Military Morse Code Innovation, and RFE/RL Opens Riga Bureau

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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!

Radio Martí news: Migrants land by Keys broadcasting tower promoting Cuban democracy (Miami Herald)

Washington maintains a waterfront radio tower in the Florida Keys to broadcast programming aimed at encouraging democracy and press freedom in Cuba, and on Sunday that area in Marathon was the landing spot for a group of migrants fleeing the island. A boat of 25 migrants arrived on the shores of Sister Creek, home to a Radio Martí transmission station on Sunday morning, said Adam Hoffner, assistant chief patrol agent for U.S. Customs and Border Protection’s Miami operations. The landing was one of two known migrant arrivals in the Keys on Sunday, with another 28 Cubans arriving on private property in Key Largo. While the government-run broadcasting agency targets Cuban listeners with Spanish programming, Radio Martí reports typically discourage the kind of voyage that reportedly landed some Cubans on or near Martí property, said Tomás Regalado, the former Miami mayor who also recently ran the agency that oversees Radio and TV Martí. “Historically, the migrant situation was something that was treated as news,” Regalado said. “But with the caveat that it’s a very dangerous trip and not recommended.” [Read more here…]

Ukraine Uses Off-The-Shelf Electronics To Target Russian Communications (Forbes)

A nonprofit organization based in the U.S. is supplying Ukrainian forces with advanced electronic warfare gear assembled from simple off-the-shelf components. The secret is a new technology known as Software Defined Radio (SDR) which can locate Russian radio emitters, from command centers to drone operators. Previously this sort of capability required expensive, high-grade military equipment.

Serge Sklyarenko says his organization, American Ukrainian Aid Foundation, based in New York, is supplying Ukrainian intelligence with a number of the versatile SDR radio kits.

“The beauty of them is they are software defined, meaning they can be reprogrammed in the field to suit a multitude of use cases,” Sklyarenko told me.

In a traditional radio set, the signal from an antenna is processed by dedicated hardware – amplifiers, filters, modulator/demodulators and other components. This means that each radio set is dedicated to one particular type of radio signal, whether it is a 5G cellphone, AM radio, digital television or WiFi. In Software Defined Radio, the only dedicated hardware is the antenna. All the signal processing is carried out digitally with a computer. Simply by changing the programming, an SDR can extract the signal for cellphone, radio, Bluetooth, or any other defined waveform. One device can do everything. [Continue reading…]

Innovation on Morse Code for the US Military (SOFREP)

On January 10, 1991, the U.S. Army Intelligence School Devens (USAISD) introduced the Basic Morse Mission Trainer to the 98H Morse intercept operator and 98D emitter identifier/locator advanced individual training courses. This system revolutionized the training of Morse code copying skills for both students and instructors, reducing course attrition, and turning out better trained operators faster. Continue reading →

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Radio Waves: Absolute Radio Turns Off AM in UK, Carlos Latuff Interview, X-Class Flaring, and Morse Code Is Back!

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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!

Absolute Radio to switch off all AM transmitters across the UK (Radio Today)

Bauer is removing Absolute Radio from Medium wave this month as it turns off all AM frequencies for the station across the country.

Absolute Radio launched exclusively on AM (as Virgin Radio) 30 years ago in 1993 using predominantly 1215 kHz along with fill-in relays on 1197, 1233, 1242 and 1260. Some of these have been turned off in recent years in places such as Devon, Merseyside and Tayside.

Whilst this is a historic milestone for the radio industry, it shouldn’t affect many listeners as just two percent of all radio listening currently takes place on AM.

Absolute Radio also lost its FM frequency in London in 2021 in favour of the ever-expanding Greatest Hits Radio network.

The move makes Absolute Radio a digital-only service, broadcasting nationally on DAB and online. [Continue reading…]

Coffee and Radio – with Carlos Latuff (Radio Heritage)

[…]Carlos Henrique Latuff de Sousa or simply “Carlos Latuff”, for friends, (born in Rio de Janeiro, November 30, 1968) is a famous Brazilian cartoonist and political activist. Latuff began his career as an illustrator in 1989 at a small advertising agency in downtown Rio de Janeiro. He became a cartoonist after publishing his first cartoon in a newsletter of the Stevadores Union in 1990, and continues to work for the trade union press to this day.

With the advent of the Internet, Latuff began his artistic activism, producing copyleft designs for the Zapatista movement. After a trip to the occupied territories of the West Bank in 1999, he became a sympathizer of the Palestinian cause in the context of the Israeli-Palestinian conflict and devoted much of his work to it. He became an anti-Zionist during this trip and today helps spread anti-Zionist ideals.

His page of Instagram (https://www.instagram.com/carloslatuff/) currently has more than 50 thousand followers, where of course you can see his work as a cartoonist and also shows his passion for radio. [Continue reading…]

X-CLASS SOLAR FLARE (Speaceweather.com)

A large and potentially dangerous sunspot is turning toward Earth. This morning (Jan. 6th at 0057 UT) it unleashed an X-class solar flare and caused a shortwave radio blackout over the South Pacific Ocean. Given the size and apparent complexity of the active region, there’s a good chance the explosions will continue in the days ahead. Full story @ Spaceweather.com ( https://spaceweather.com)

Looking to Ditch Twitter? Morse Code Is Back (Smithsonian Magazine)

For almost 20 years, Steve Galchutt, a retired graphic designer, has trekked up Colorado mountains accompanied by his pack of goats to contact strangers around the world using a language that is almost two centuries old, and that many people have given up for dead. On his climbs, Galchutt and his herd have scared away a bear grazing on raspberries, escaped from fast-moving forest fires, camped in subfreezing temperatures and teetered across a rickety cable bridge over a swift-moving river where one of his goats, Peanut, fell into the drink and then swam ashore and shook himself dry like a dog. “I know it sounds crazy, risking my life and my goats’ lives, but it gets in your blood,” he tells me by phone from his home in the town of Monument, Colorado. Sending Morse code from a mountaintop—altitude offers ham radios greater range—“is like being a clandestine spy and having your own secret language.”

Worldwide, Galchutt is one of fewer than three million amateur radio operators, called “hams,” who have government-issued licenses allowing them to transmit radio signals on specifically allocated frequencies. While most hams have moved on to more advanced communications modes, like digital messages, a hard-core group is sticking with Morse code, a telecommunications language that dates back to the early 1800s—and that offers a distinct pleasure and even relief to modern devotees.

Strangely enough, while the number of ham operators is declining globally, it’s growing in the United States, as is Morse code, by all accounts. ARRL (formerly the American Radio Relay League), based in Newington, Connecticut, the largest membership association of amateur radio enthusiasts in the world, reports that a recent worldwide ham radio contest—wherein hams garner points based on how many conversations they complete over the airwaves within a tight time frame—showed Morse code participants up 10 percent in 2021 over the year before.

This jump is remarkable, given that in the early 1990s, the Federal Communications Commission, which licenses all U.S. hams, dropped its requirement that beginner operators be proficient in Morse code; it’s also no longer regularly employed by military and maritime users, who had relied on Morse code as their main communications method since the very beginning of radio. Equipment sellers have noticed this trend, too. “The majority of our sales are [equipment for] Morse code,” says Scott Robbins, owner of ham radio equipment maker Vibroplex, founded in 1905, which touts itself as the oldest continuously operating business in amateur radio. “In 2021, we had the best year we’ve ever had … and I can’t see how the interest in Morse code tails off.”

Practitioners say they’re attracted by the simplicity of Morse code—it’s just dots and dashes, and it recalls a low-tech era when conversations moved more slowly. For hams like Thomas Witherspoon of North Carolina, using Morse code transmissions—sometimes abbreviated as CW, for “continuous wave”—offers a rare opportunity to accomplish tasks without high-tech help, like learning a foreign language instead of using a smartphone translator. “A lot of people now look only to tools. They want to purchase their way out of a situation.”

Morse code, on the other hand, requires you to use “the filter between your ears,” Witherspoon says. “I think a lot of people these days value that.” Indeed, some hams say that sending and receiving Morse code builds up neural connections that may not have existed before, much in the way that math or music exercises do. A 2017 study led by researchers from Ruhr University in Bochum, Germany, and from University Medical Center Utrecht in the Netherlands supports the notion that studying Morse code and languages alike boosts neuroplasticity in similar ways. [Continue reading…]

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Radio Waves: Honking SOS, Vatican Hosts Shortwave G9, AM Vital in Wyoming, and the Mainstream Transistor

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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!

Supermarket delivery driver saves 90-year-old after ‘SOS’ Morse code signal on car horn (ITV)

A 90-year-old widower was saved by an supermarket delivery driver when he broke his hip – and used his car horn as Morse code.

Retired panel beater Keith Turner was left injured when he slipped on his driveway before he dragged himself to his car.

The quick-thinking pensioner then used the horn to sound out the SOS message in Morse code in a cry for help.

And it was heard by delivery driver Sam Speechley, 45, as she pulled up in her van in the Garden City village in Flintshire, North Wales.

Keith was taken to hospital where he spent three weeks with a broken hip before he was finally allowed home. [Click here to read at ITV…]

Vatican Radio hosts ‘G9’ of short wave media as ‘missionaries of peace’ (Vatican Radio)

Gathered at the historic headquarters of Vatican Radio in the Vatican Gardens, representatives of the nine primary western radio broadcasters meet with Monsignor Lucio Ruiz opening the meeting by recalling the importance of short wave in sending messages of hope and mercy all over the world.

By Michele Raviart

The “G9” group of the primary western radio broadcasters met at the Vatican on Tuesday focusing on a number of issues.

These included the use of short-wave radio in order to render the jamming of international broadcasters less effective through common efforts to coordinate how broadcast frequencies are used and technical cooperation between members.

This marked a key item on the agenda of the meeting which brought together the representatives, including Vatican Radio, in the historic building of the Pope’s radio, located in the Vatican Gardens, a place that housed the first radio station built by Guglielmo Marconi.

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Andy hears Morse Code in B52s concert

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

Thomas,

I was just listening  to an old B52’s music gig on YouTube when it got
to 51:57 mins in.

You can clearly hear NAWS DE CFH and some other stuff.

How did that get there–?

73 de Andy

Thanks for sharing, Andy!

Ah yes, Planet Claire! I actually heard the eB52s play this one live at a concert in the early 90s.

The “CHF” that you hear is the callsign of the Canadian Forces Station Mill Cove. This is a partial recording of a CHF broadcast listing frequencies for RTTY transmissions. The B52s have been known to incorporate radio feedback and snippets in their work. You can hear CW more clearly in this video:

In fact, when I saw the B52s live, Fred Schneider used a walkie talkie Morse Code button (the type that you could find on kids’ walkie talkies) for audio feedback in at least Planet Claire and Rock Lobster. 

I bet there are some other B52s fans out there who will have even more insight! Thanks again, Andy!

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Radio Waves: Radio Liberty Journalist Bugged, Invisible Battle, RNZ Shortwave After Tonga Eruption, Closing Analog FM in Spain to Save Energy, and Keeping Morse Code Alive

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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!

Journalist Vitaly Portnikov was found to be “eavesdropped” at his home in Lviv, – Knyazhytskyi (Espeso)

Note this article has been translated in English. Original in Ukrainian found here.

The police promptly responded to the call, but the SBU for some reason delays its response to illegal actions People’s deputy Mykola Knyazhytskyi announced this on Facebook .

“In Lviv, journalist Vitaly Portnikov, who hosts programs on Espresso and Radio Svoboda, found a eavesdropping device at home. It is a voice recorder with the ability to record for a long time. The police were called. They arrived quickly. The SBU was called. They are not going. As a member of the Verkhovna Rada, I ask the SBU to come immediately and disrupt case. We don’t know who installed this device and for what purpose: our services, foreign services or criminality,” the politician said.

Image via Espreso

Vitaly Portnikov commented on the incident for “Espresso”:

“Today, while cleaning the apartment I lived in at the end of February, when the war started, I found a recording device under the bed. The device had an inventory number. I informed the law enforcement authorities about my discovery so that they could investigate this incident.”

The journalist added that he hoped for a high-quality investigation and clarification of all the circumstances of the case:

“After my statement, the investigators of the SBU of the Lviv region conducted an inspection of the premises and seized a device that is a device for listening and recording information. I hope that the relevant structures will conduct an examination and find out by whom and why this device was placed in my apartment.”

Vitaly Portnikov is a well-known Ukrainian journalist, publicist and political commentator. Cooperates with Radio Svoboda and Espresso. On the Espresso TV channel, he creates the programs “Political Club of Vitaly Portnikov” and “Saturday Political Club”. [Click here to read the full article at Espreso.]

The Invisible Battle of the Cold War Airwaves (Bureau of Lost Culture)

This Episode explore three stories of cold war era radio in the USSR: Soviet Radio Jammers, the Russian ‘Woodpecker’ and the Soviet Radio Hooligans

[Click here to listen to the podcast via PodBean.]

We meet with Russian broadcaster Vladimir Raevsky to talk about radio jamming in cold war era Soviet Union.

As East and West super powers square up to each with nuclear weapons, a parallel invisible war is being fought in the airwaves. Continue reading →

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Radio Waves: Brooklyn Pirate Radio Interview, Emergency Radio Evolution, SOTA Hams Prevent Forest Fire, and Morse Code Documentary

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!

Interview about Brooklyn pirate radio (Irish Pirate Radio Audio Archive)

Although Irish pirate radio is our main interest, today we explore the lively pirate scene in the Brooklyn area of New York City. The Brooklyn Pirate Radio Sound Map is a fascinating project established by radio producer and audio archivist David Goren and provides interactive maps and historical and contemporary recordings of the many unlicensed stations in Brooklyn.

This is a longer version of an interview by John Walsh with David Goren first featured in Wireless, a series about radio, audio and media on Flirt FM in Galway. It covers the history of pirate radio in Brooklyn and New York generally, attempts to crack down on the unlicensed stations, the role of low-powered FM, the background to the Brooklyn Pirate Radio Sound Map itself and plans for the future. Many thanks to David for taking the time to explain this fantastic project for us. [Read the full article and listen to the interview on the Irish Pirate Radio Audio Archive…]

The Evolution of the Emergency Radio (Radio World)

From AM-only portables to multi-function machines

With the advent of the 9V battery-powered transistor radio in the 1950s, the “Emergency Radio” was born.

Unlike vacuum tube receivers with heavy batteries or unpowered crystal radios, these handheld AM portables were small and simple enough to keep in a drawer. They could then be retrieved whenever man-made or natural disasters knocked out the power, providing listeners with lifeline connections to news, weather and relief information. Continue reading →

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Kostas explores an alternative to Morse Code that’s been used in prisons, with roots in ancient Greece

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Many thanks to SWLing Post contributor, Kostas (SV3ORA), for sharing the following guest post which originally appeared on his radio website:

TAP: A Morse alternative mode for the HAM, with no need for training

by Kostas (SV3ORA)

Introduction

The thinking of this new mode, came to me when someone posted that he quit the HAM hobby because he did not learn Morse code and he did not want to use computers to do the job for him. Some time I faced a similar situation and I believe many do one day or the other. So I thought that I had to do something about it. It is too bad people quit the hobby or missing the fun of the KEY operation, because of the obstacle of Morse code. No matter what CW operators that already learnt Morse might say, the fact is that Morse requires patience, continuous practice and most importantly time. After all military had dedicated courses on it in the past, so it must be more than true. These are things not all people can, or are willing to do. An alternative that gives the same pleasure like Morse and operates with the same techniques, but requires no training and time must exist. Meet the TAP mode!

Mode description

This mode has its roots to ancient Greece. You may read the article in Wikipedia for more information on the Polybius square. A form of it, was used in the previous century in was times, for in-prison communication. A modified version is presented here by me, that fits perfectly the HAM radio. This modified TAP code scheme, is dedicated to HAM radio and includes the numbers and the letter “k”.

This is all you need to know in order to send and receive TAP. It is easy to follow and easy to generate on paper. This is a 6 by 6 table, with the first six alphabet letters placed in the first line, the next six in the second and so on. After the alphabet ends, the numbers are put in the same manner. Thats it!

Sending TAP

It is better to describe the sending procedure with an example.
To send the letter “i” you send two dots (“i” is on the second row), wait a bit and then send 3 more dots (“i” is on the third column). In other words, you first count the number of rows where the letter exists, then wait a bit and then you count the number of columns where this letter exists. Before sending the next letter, leave a bit of more time, so as to distinguish that this is a separate letter and not the time between rows and columns. Thats it!

Try it now without any transceiver! Write the TAP table on a piece of paper (you do not need to write the row and column numbers), or read it from the website. Tap on your desk with your finger and send some words to the colleague near you. See how easy it is?

There are actually four spacings involved. The spacing between adjacent dots, the spacing between the row and the column, and the spacing between letters and the spacing between words. Follow the PARIS spacing, like Morse code does, if you intent to write a software for it. However, in practice, manual operators would need to consider just two spacings, the spacing between rows and columns and the spacing between letters. These are the most important. Just make the one bigger than the other and communication should be achieved without problems.

Receiving TAP

It is better to describe the receiving procedure with an example.
To receive the letter “i” you listen two dots (“i” is on the second row), then a short scilence time and then listen 3 more dots (“i” is on the third column). In other words, you first listen for a number of dots (this is the row where the letter exists), then sense the scilence and then you listen for the next number of dots (this is the column where the letter exists). The scilence time between two letters is greater than the scilence between rows and columns and this can be distinguished easily. Thats it!

Try it now without any transceiver! Write the TAP table on a piece of paper (you do not need to write the row and column numbers), or read it from the website. Put your coleague to sent you some TAP words and you should be able to decode them by counting the rows and columns in the TAP table.

A programmer that may need to implement the mode in software, should follow the PARIS spacing to distinguish the different parts of the code, as described above.

TAP advantages

Here are some advantages I can think, of TAP in comparison to Morse.

  • No training is required, start using it imediatelly, even by non-HAM people and kids. This probably is the greatest advantage and this is why most would want to use TAP in HAM radio.
  • The encoding/decoding square can be drawn easily, it is very easy to remember how to draw it.
  • Decoding by hardware or software means, becomes very easy, as there are no dashes to account for. Dot lengths can be anything and can be even varying from dot to dot, it does not matter.
  • All you count, is how many ON-states (taps) there are and the rough timing between them, to decide between a row-column or a letter. Because of this intependency from dashes, the code can be used on any means, radio, light, pipes, walls, desks etc.
  • If dot lengths are kept very short (up to the point where channel noise allows it), RF amplifiers can be pushed beyond their limits (due to limited duty cycle), or otherwise run cooler within their limits. There are some mediums, like light communication, where bright pulses of light can be produced easily (eg. xenon tubes), but not kept for duration and TAP is ideal on them.

TAP disadvantages

Here are some disadvantages I can think, of TAP in comparison to Morse.

  • Speed limit issues probably. TAP beginners achieve for sure faster speeds than Morse beginners. However, a trained Morse HAM, can achieve greater speeds with Morse.
  • Learning the table by heart, can be tricky in comparison to Morse. However war prisoners had tricks to learn by heart the 5×5 TAP  square.
  • Not known (yet) among the HAM community, like any new mode. Why not change that by let HAMs know about it?

TAP common points to Morse

There are some common points shared between TAP and Morse code.

  • Both are relatively slow modes.
  • Both are ON/OFF keying modes, efficient class-E amplifiers can be used.
  • Both share the same channel bandwidth and noise-related characteristics.
  • Both are human-oriented, although TAP does not require training. Both share the PARIS timing when implemented in software.
  • Both allow for the “joy of the KEY”. You send TAP with the same equipment as Morse.
  • Both are ideal for homebrew QRP, due to efficiency and transceivers simplicity.
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