Radio Waves: Radio Facsimile from the 1930s, Public Radio Saving Print, Unlicensed Experimental LW Radio, and RIP Tony Middleton & Milburn Butler

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!


A Look Back at the Radio Newspaper of the Air (Radio World)

Radio facsimile technology never fully caught on, but what if it had?

In the beginning, there were newspapers.

And then radio arrived, challenging the newspapers’ journalistic monopoly.

At first, many newspapers fought the new competitor, refusing to print radio news or program schedules. But some went in the opposite direction, deciding to operate their own radio stations to augment their businesses. And finally, a few brave pioneering publications went even farther: They tried to deliver their newspapers via radio facsimile.

In the early 1930s, radio facsimile looked like the dream application for newspapers. They could use their own local radio stations to deliver newspapers directly to consumers during overnight hours. It would eliminate the cost of printing and distribution and shift those costs onto consumers, who would provide their own printers and paper.

This led several radio stations and newspapers to experiment with facsimile transmission during the late 1930s.

THE FINCH SYSTEM

The person most responsible for this technology was William G. H. Finch. He worked for the International News Service and set up their first teletype circuits between New York, Chicago and Havana. He became interested in facsimile machines and eventually amassed hundreds of patents. [Continue reading the full article…]

How public radio is trying to save print (The Verge)

Why Chicago Public Media and the Chicago Sun-Times are exploring a merger

The Chicago Sun-Times needs help. After being bought and sold several times over the last decade, the 73-year-old paper is looking for a more stable home to continue its award-winning reporting — and it may have finally found it in an unexpected place: a radio station.

Chicago Public Media, which owns the radio station WBEZ, is currently in talks with the Sun-Times to merge. A final deal would combine their newsrooms and audiences in hopes of creating a financially stable enterprise for both teams. Similar mergers and acquisitions have become a common way to bolster the struggling print industry, but if radio were to take on a major newspaper, that would be a first.

“Audio is a growth business,” says Jim Friedlich, chief executive of The Lenfest Institute for Journalism, who advised CPM on the potential merger. “Now Chicago Public Media and other media with audio roots have both the wherewithal and the self-confidence to take a bold step like this.”

Since 2004, US newspapers have shut down at a rate of 100 per year, a pace that’s only accelerated since the start of the pandemic. To stay afloat, some smaller newsrooms have given up independence, being bought by news conglomerates or becoming joint entities with other local outlets — and public radio and TV stations have increasingly offered themselves up as partners. New York Public Radio acquiring the website Gothamist was one of nine similar deals in recent years, triggering researchers to document the trend by creating the Public Media Mergers Project. Public radio has been a particularly strong force, holding its ground amid digitization and the podcasting craze (partially because it’s participated in it), and it might be strong enough to help print do the same thing. [Continue reading…]

The low-down on long-wave: Unlicensed experimental radio (Hackaday via the Southgate ARC)

In the 125 years since Marconi made his first radio transmissions, the spectrum has been divvied up into ranges and bands, most of which are reserved for governments and large telecom companies. Amidst all of the corporate greed, the ‘little guys managed to carve out their own small corner of the spectrum, with the help of organizations like the American Radio Relay League (ARRL).

Since 1914, the ARRL has represented the interests of us amateur radio enthusiasts and helped to protect the bands set aside for amateur use. To actually take advantage of the wonderful opportunity to transmit on these bands, you need a license, issued by the FCC. The licenses really aren’t hard to get, and you should get one, but what if you don’t feel like taking a test? Or if you’re just too impatient?

Well, fear not because there’s some space on the radio spectrum for you, too.

Welcome to the wonderful world of (legal!) unlicensed radio experimentation, where anything goes. Okay, not anything but the possibilities are wide open. There are a few experimental radio bands, known as LowFER, MedFER, and HiFER where anyone is welcome to play around. And of the three, LowFER seems the most promising.

LowFER, as the name would suggest, contains the lowest frequency range of the three, falling between 160 kHz and 190 kHz, with a whopping wavelength of around one mile. Also known as the 1750-meter band, this frequency range is well-suited for long transmission paths through ground wave propagation, a mode in which the radio signals move across the surface of the earth. This can easily carry even low-power signals hundreds of miles, and occasionally through some atmospheric black magic, signals have been known to travel thousands of miles. These ground wave signals also travel well across bodies of water, especially salt water.

Read the full Hackaday item at:
https://hackaday.com/2021/10/19/the-low-down-on-long-wave-unlicensed-experimental-radio/

RAE bids farewell to its historic English voice, Tony Middleton (RAE)

We regret to inform our listeners that our colleague Juan Antonio “Tony” Middleton passed away in Buenos Aires due to health complications, at the age of 82. His distinctive British accent is part of the history of RAE, where he hosted the English-language program for almost three decades. English-speaking listeners around the world remember his warmth and clarity on the air, not to mention his classic opening line: “This is the international service of the Argentine Radio”.

Born in Argentina and son of British immigrants, he ventured into acting in the English language with the group “Suburban Players”, while he was engaged in various commercial activities with his family. In 1981 he had the opportunity to join RAE as a substitute, thanks to his impeccable English and his pleasant voice. In 1983 he joined as a regular and went on to become head of the English-language department at the station, until his retirement in 2008. [Continue reading…]

Milburn Garland Butler Dec 1, 1935 – Oct 10, 2021 (Dignity Memorial)

Mlburn Garland “Gil” Butler was born December 1, 1935 in Bradenton, Florida. He attended local schools, where his mother was a teacher. He grew up in a community where electrification was still being developed, where the Saturday morning movies were an all-day entertainment for kids, and where families would gather in the town square on Sundays for band music and ice cream. After a brief stint in the Army (serving as a quartermaster at a base near Washington, D.C.), Gil Butler went to college in Colorado, returning to Florida where he graduated from the University of Florida with a degree in radio engineering. Along the way, he met and after a whirlwind courtship married Judith Bunten, who would become his lifelong companion. Gil Butler began working as a DJ at a small radio station in Bradenton, Florida in the early 1950s, spinning disks from the very beginning of Rock and Roll. His love of music of all sorts, from Jazz to Rock to Classical, his collection evolved through several formats (LP, cassette, CD, and MPs), and his special chair was always surrounded by the music he would enjoy while reading in the evening. Professionally, Gil moved up to larger stations and more challenging positions in radio and television; working for radio stations around the Tampa Bay area. His first TV gig was as a general reporter for WTVT in Tampa. From there, he moved to WXYZ in Detroit, Michigan, before moving to Silver Spring in the Washington D.C. where he worked as a White House Correspondent for local CBS affiliate, WTOP, covering Washington politics under presidents Nixon and Ford. During this period, Gil appears briefly in Timothy Crouse’s The Boys on the Bus (a recounting of the White House Press Corps during the Nixon Era). He was one of the six “Knights of the Green Ottoman,” named for an item of furniture in the 1972 White House press complex, where the newsmen would gather and share notes. In one passage, he is described: “Gil Butler… the reporter for TV station WTOP, who was chuckling over a volume of Mencken…” This description will surprise no one who knew him, as Gil was a voracious reader. He was always in the middle of a massive nonfiction volume about politics, military history or the Space Race. After WTOP, in 1978, Gil began his ultimate career at the Voice of America, the United States Information Agency’s international radio network. Over a nearly three decade career with Voice of America, he covered 68 countries, working abroad in Cairo, Egypt, Beiruit Lebanon, Beijing, China, London, England, as well as covering the State Department and Pentagon during his time at home between foreign assignments. At the Voice of America’s 40th Anniversary Celebration, Gil received the Meritorious Honor Award for his work in Cairo covering the assassination and funeral of Egyptian President Sadat and its aftermath. Twenty-seven years later, Voice of America News ran a story looking back at that work and the restraint and integrity he exercised in waiting for confirmation before reporting that Sadat had been killed. [Continue reading…]


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Video: Story of Gibraltar Broadcasting Corporation’s move to a new broadcasting house

Many thanks to SWLing Post contributor, Tracy Wood, who writes:

While searching the revamped Gibraltar Broadcasting Corporation’s website (gbc.gi) I came across a recent documentary that might be of some interest. It’s titled “GBC: The Move”. The GBC website states it’s a “story about the move from our home of the last 41 years to the ‘new’ Broadcasting House on Rosia Road, a project 4 years in the making. Featuring interviews with staff, the build, history and insight to the huge undertaking that is moving whilst staying ‘”on air’.”

The documentary includes photos of the former 1458kHz top-loaded medium-wave originally located at the Bastion downtown, before it’s relocation to a site above Engineer Road with a much larger “top-hat.” The program covers aspects of both the radio and TV services. (GBC offers three radio services – Radio Gibraltar, Radio Gibraltar Plus FM, Radio Gibraltar Plus AM. The Plus services include two hours of Spanish Monday-Friday and run in parallel except when the AM service covers Gibraltar Parliament sessions.

https://www.gbc.gi/tv/programmes/gbc-move-1189

Direct URL :
https://www.gbc.gi/tv/programmes/gbc-move-1189/clips/gbc-move-627

Runtime: 54:16

GBC’s radio service and locally-originated TV programs are available at www.gbc.gi.

This is fascinating! Thank you for sharing this, Tracy!

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Short Waves / Short Poems seeks assistance

Many thanks to SWLing Post contributor, T.D. Walker, who shares the following:

In 2019, I put together the first two episodes of Short Waves / Short Poems, a program that featured voices of poets on shortwave radio. Since last year, I’ve been trying to put together a full season of the show, but the pandemic has left me with far less free time for radio projects than I had before.

Thus, I’m reaching out to ask for volunteers who would be interested in helping out with tasks related to Short Waves / Short Poems and another program for shortwave radio that I’m working on.

I have the content and sound editing lined up, but I could use some help with just about everything else, including publicity, administrative tasks, and getting another set of ears on the shows before broadcast.

If you’re interested, please email me at info [at] tdwalker [dot] net. More information about the past episodes can be found at shortwavesshortpoems.com. Thanks!

Many thanks for the message and it’s great to hear there’s another season in the works. Readers, if you can help in any way, feel free to reach out to her. We’ll certainly plug the season and episodes here on the SWLing Post!

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Jeremy’s Hammarlund HQ-100AC: 57 years and going strong!

Many thanks to SWLing Post contributor, Jeremy Clark (VE3PKC), who writes:

Thomas:

Got kind of nostalgic [last week] as it was Thanksgiving Day in Canada. I did a video about my Hammarlund HQ100AC which I got for a Christmas present in 1964, 57 years ago. It still works!

Best Regards

Jeremy Clark VE3PKC

Click here to view on YouTube.

This is wonderful, Jeremy. There’s simply nothing like our boat anchors and vintage radios that continue to work perfectly and pump out amazing, warm audio. There was no such thing as “planned obsolescence” back then! Our radios like the HQ100AC will long outlast us!

Thanks again, Jeremy! I hope your HQ100AC enjoys a even more time on the air and keeps you warm this winter.

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NCM discovers incredibly rare OMI Cryptograph machine in “a dusty crate”

OMI Cryptograph, an Italian cipher machine built by Ottico Meccanica Italiana (OMI), is part of the National Cryptologic Museum’s (NCM) collection of artifacts. (Photo by NCM)

Many thanks to SWLing Post contributor, Andrea Borgnino, who shared the following news from the NSA Museum (the National Cryptologic Museum) in Fort Meade:

Long lost and rare Italian cipher machine found

FORT MEADE, Md. — At the outbreak of WWII in 1939, Nazi Germany’s Enigma encryption machine stood as the state-of-the art method for sending and receiving secret messages. It wasn’t until 1940 that English mathematician Alan Turing, and the team at Bletchley Park, cracked the daily changes Berlin made to its cipher system, and helped the Allied powers win the war.

While the Enigma stands out as the most famous of encryption machines, Italy, set out to develop a high-end machine to rival its war partner, Germany. In 1939 Italy’s government secretly tasked a little-known photogrammetric equipment company, Ottico Meccanica Italiana (OMI), to build a device capable of rivaling its more famous cousin. Founded in 1926, OMI’s tools were used to create precision topographical maps and surveys using stereoscopic aerial photography. The technical expertise made OMI a natural fit for the job. The end result was OMI’s first cipher machine known as the Cryptograph Alpha.

OMI built cipher devices throughout WWII, and into the 1960’s, including: the OMI Cryptograph, the OMI Cryptograph-CR and the OMI Cryptograph-CR MkII. While many of these devices managed to survive passing through the hands of various collectors and museums, examples of the second iteration, the OMI Cryptograph machines, were widely believed to have been destroyed long ago. Until now. Digging through its vast collection of warehoused artifacts, the National Cryptologic Museum (NCM), curators found an OMI Cryptograph machine in its collection.

NCM Collections Manager Spencer Allenbaugh recently discovered the OMI Cryptograph in a dusty crate and immediately knew he had found a treasure.

“This find gives the National Cryptologic Museum the chance to recover an artifact once thought to be lost forever. This device provides a small glimpse into Italy’s cryptologic history and how Italian cryptologists operated during that time period. This recovery also strengthens our already-strong reputation in the field of cryptologic history and will give people more reason to come and see the device up close once the museum re-opens,” said Allenbaugh.

“When the device is on display, researchers and historians will have the opportunity to see the artifact, study it, and learn more about its history and design,” he added.

Originally introduced around 1954, the OMI Cryptograph operated similarly to the German Enigma, with five moving cipher wheels to encipher/decipher messages, but, unlike the military Enigmas, it also had a built-in printer that produced its output directly onto a paper strip. This model was operational until the late 1950s when the OMI Cryptograph-CR succeeded it.

Visitors to the NCM can look forward to see this treasure on exhibit when museum renovations are completed and the museum reopens in Spring of 2022.

Click here to read this story at the NSA website.

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Bob’s Updated Passive, Resonant, Transformer-Coupled Loop Antenna for Shortwave

Figure 1. A Passive, Resonant, Transformer?Coupled Loop Antenna for Shortwave

Many thanks to SWLing Post contributor, Bob Colegrove, for the following guest post:


A Passive, Resonant, Transformer?Coupled Loop Antenna for Shortwave

By Bob Colegrove

Over the years I have resisted the level?of?effort necessary to construct and maintain outdoor antennas. Rather, I have focused on squeezing out all of the microvolts I could get inside the house. Many years ago I had access to a well?stocked engineering library, and used my advantage to gather information about the theory and development of loop antennas – a daunting undertaking for an English major. Ultimately, by adhering to a few basic rules, some of them dating back 100 years, I found quite acceptable performance can be had with an indoor passive antenna intersecting just a few square feet of electromagnetic energy.

Theory

There are a couple of advantages of resonant loops as opposed to non?resonant ones. The first is the fact that the signal dramatically increases when you reach the point of resonance. The second follows from the first in that resonance provides a natural bandpass which suppresses higher and lower frequencies. This gives the receiver a head start reducing intermodulation or other spurious responses. The downside of all this is that the resonant loop is, by design, a narrow?band antenna, which must be retuned every time the receiver frequency is changed by a few kHz. On the other hand, there is nothing quite as rewarding as the sight (S?meter) and sound you get when you peak up one of these antennas – you know when you are tuned in.

There is nothing new about the loop antenna described here. It’s just the distillation of the information I was able to collect and apply. There are a number of recurring points throughout the literature, one of which is the equation for “effective height” of a loop antenna. It basically comes down to the “NA product,” where N is the number of turns in the loop and A is the area they bound. In other words, provide the coil with as much inductance as possible.

Unfortunately, for resonant loops, the maximum coil size diminishes with frequency.
With this limitation on inductance, the challenge becomes minimizing unusable capacitance in the resonant frequency formula in order to get the highest inductance?to?capacitance (L/C) ratio possible. Some of the unusable capacitance is built into the coil itself in the form of distributed capacitance, or self?capacitance between the coil turns. This cannot be totally eliminated, but can be minimized by winding the coil as a flat spiral rather than a solenoid, and keeping the turns well separated.

The second trick is with the variable capacitor. Even with the plates fully open, there is residual capacitance on the order of 10 to 20 picofarads which can’t be used for tuning purposes. A simple solution is to insert a capacitor in series, about 1?4 the maximum value of the variable capacitor. This effectively decreases the minimum capacity and extends the upper frequency range. In order to restore the full operating range of the variable capacitor, the fixed capacitor can be bypassed with a ‘band switch.’ With the series capacitor shorted, the variable capacitor operates at its normal range and extends coverage to the lower frequencies. Continue reading

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