Many thanks to SWLing Post contributor, Bob Zanotti (HB9ASQ), who has, at my request, shared a video recording of a presentation he gave to the Fairlawn ARC last year.
This is part two. If you missed part one, you can view it by clicking here. Thank you, Bob! Enjoy:
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 Trevor Robbins and Dennis Dura for the following tips:
Having a big bookshelf of ham radio books and magazines used to be a point of bragging right for hams. These days, you are more likely to just browse the internet for information. But you can still have, virtually, that big shelf of old ham books, thanks to the DLARC — the digital library of Amateur Radio and Communications.
A grant from a private foundation has enable the Internet Archive to scan and index a trove of ham radio publications, including the old Callbooks, 73 Magazine, several ham radio group’s newsletters from around the globe, Radio Craft, and manuals from Icom, Kenwood, Yaesu, and others.
There are some old QST magazines and the index to newer ones. You can find catalogs and military documents. We miss a lot of these old magazines and newsletters. For example, RCA’s “Ham Tips” is something you won’t find anything like anymore. Most of the material is in English, but there are some other languages represented. For example, the Dutch version of Popular Electronics is available. There’s also material in Afrikaans, Japanese, German, and Spanish. [Continue reading at Hackaday…]
Ham Radio operators, we’re calling you! Members of the Ham Radio Science Citizen Investigation (HamSCI) will be making radio contacts during the 2023 and 2024 North American eclipses, probing the Earth’s ionosphere. It will be a fun, friendly event with a competitive element—and you’re invited to participate.
Both amateur and professional broadcasters have been sending and receiving radio signals around the Earth for over a century. Such communication is possible due to interactions between our Sun and the ionosphere, the ionized region of the Earth’s atmosphere located roughly 80 to 1000 km overhead. The upcoming eclipses (October 14, 2023, and April 8, 2024) provide unique opportunities to study these interactions. As you and other HamSCI members transmit, receive, and record signals across the radio spectrum during the eclipse, you will create valuable data to test computer models of the ionosphere.
For more information, go to https://hamsci.org/festivals-eclipse-ionospheric-science
The Canadian pop music station PopShopRadio in British Columbia has just announced that they will use the DRM standard to broadcast their best pop music towards Europe on the 5th March 2023 at 2000-2100 CET (GMT+1) on 5875 kHz (85kW) from Wooferton in the UK.
This radio station is specialised in transmissions of well-known pop music from the 60s and 70s or even before that. They are collecting the best tunes from various countries and offer them to the world using shortwave. This time round they wish to also use the DRM standard in SW to be able to reach distant parts of the globe in much better sound quality.
For more details please click here and here.
Air raid sirens broadcast in a dozen cities
Radio stations in several Russian cities were disrupted on Feb. 22 by the sound of air raid sirens and a warning of imminent missile strikes.
The broadcasts were reportedly heard in Belgorod, Chelyabinsk, Kazan, Magnitogorsk, Nizhny Novgorod, Novouralsk, Pyatigorsk, Stary Oskol, Syktyvkar, Tyumen, Ufa, and Voronezh, among other cities. Recordings of the broadcast were shared on the social media network Telegram and reported on by Meduza.
Meduza, an independent news agency now based in Latvia, was forced to move its operations out of Russia during the media crackdown that followed Russia’s February 2022 invasion of Ukraine. [Continue reading at Radio World…]
Only 223 stations remain on air 18 months after Taliban regained control of the country
In the 18 months since the Taliban retook full control of Afghanistan, 177 radio stations have gone off the air in the country, displacing about 1,900 journalists and other employees.
In a statement released on World Radio Day 2023, the Afghan Independent Journalists Association noted that during the Islamic Republic period from 2004–2021, there were as many as 401 radio stations operating in Afghanistan. As the Taliban Insurgency increased its control of the country, about 56 stations went off the air before the Taliban took control and reinstated the Islamic Emirate of Afghanistan in August 2021.
Since then, around 120 stations have ceased broadcasting due to economic pressures. The AIJA stated that only 223 stations currently operate in the country.
With these stations going dark, more than 1,900 journalists and media workers are now unemployed in the country, include 1,075 women. [Continue reading at Radio World…]
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Many thanks to SWLing Post contributor, Mike (VE3MKX), for sharing over 100 photos from the 2023 Hamcation, the majority of which are from the flea market. If you would like to view this gallery of photos, click the link below:
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 Dennis Dura, Michael McShan,
and David Iurescia for the following tips:
Despite being created 180 years ago and not being a requirement for amateur radio operators to learn since 1990, it has been kept alive by radio enthusiasts – and now more young people are getting involved.
A combination of pandemic lockdowns forcing youngsters to learn something new, and the use of Morse Code by popular K-Pop bands, has led to ‘a renaissance’ in teens wanting to learn the once groundbreaking form of communication.
From five-year-olds to 99-year-old war veterans, people all over the world are tapping in to communicate with others on the radio. [Continue reading…]
As he sits in a shed on the outskirts of Cambridge, Martin Atherton twists a radio dial and picks up a message being sent in Morse code. The audio dots and dashes, familiar from black-and-white war films, might seem to be relics of a past era.
But more than a century after it was first used, this mode of communication appears to be making a comeback. Since 2006 the number of amateur radio licences, which allow holders to send Morse and voice messages, has increased by almost 60 per cent, according to the Radio Society of Great Britain.
Last year the number of 13 to 44-year-olds viewing the society’s online tutorials, which cover topics such as “improving your Morse skills” and how to build your own equipment, more than tripled.
Allowing people to reach out to distant lands on a shoestring budget, the hobby could have been tailor-made for lockdown. The Netflix series Stranger Things, in which a “ham” radio set is used to contact another dimension, has also been linked to an increase in interest.
“Teenagers are picking it up, so are retirees,” said Atherton, 69, a member of the Cambridge University Wireless Society. [Continue reading…]
In the 1960s, the BBC had a vise grip on British radio, and rarely played the pop and rock music that was all the rage. So a group of rebellious radio DJs decided to give the people what they wanted, and started broadcasting popular music from boats stationed in international waters. Soon enough, these young DJs became national superstars… until the British government decided it was time to sink these pirates once and for all. This story comes from the History This Week podcast.
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Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!
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…]
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…]
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
By Jock Elliott, KB2GOM
If you had been monitoring 29.620 around 1615Z on January 5, 2023, it’s just barely possible that you could have heard me leap out of my chair and do the “Astonishment Dance,” while yelling: “Are you kidding me?!! Is this even possible?!!”
Let me set the scene: it was a quiet day, much like any other day. My Better Half was catching up with her sister on the telephone in another room. I was in the sun room/library/radio shack reading a book.
Two of my ham transceivers are ex-public-service units, and I decided to put the one dedicated to 70 cm on scan. In my area, 70 cm (440 MHz ham band) is generally pretty quiet, and I thought I would see if anyone was using it.
After a while, the scan stops, and the transceiver locks onto 442.9500 a repeater far to the south of me. A mellifluous French accent begins announcing a callsign: Foxtrot 3 Oscar India Japan. I drop my call on the repeater . . . KB2GOM . . . we chat. His name is Serge, he is in Rheims France.
Wait a minute, this is a 440 repeater. I’ve heard of extreme long distance propagation occasionally on two meters . . . but 440? This is crazy.
I am officially flipping out . . . is this some sort of X-files propagation on 70cm? Better call Fox Mulder.
I call my radio guru, K2RHI; he explains it is a 10 meter repeater linked to a series of other repeaters, including the 70 cm repeater my transceiver has locked onto. I settle down . . . a little . . . and continue to monitor. Then in rapid succession, I respond to the calls from hams from Texas, Northeast England and a place called Trout Creek in Delaware County. If you had been listening on 29.620, you might have heard one very excited oldster (me!) talking with those stations.
So dear reader, the moral of this story is two-fold: (1) you never know what surprise radio may deliver next, and (2) when it happens, it can be a source of fun and wonderment . . . so keep listening!
Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!
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…]
[…]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…]
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)
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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