Tag Archives: Radiofax

Carlos improves quality of radiofax decodes

Many thanks to SWLing Post contributor, Carlos Latuff, who writes:

I made some adjustments and now I receive better quality radiofaxes. Since I started receiving radiofaxes in 2021, I had forgotten a fundamental detail.

To tune 1.9kHz lower than the advertised frequency. For example, the frequency of Kyodo News is 16971 kHz. I therefore tune in 16970 kHz. Of course, the fact that I tune in at 4:10 am in Brazil also makes a difference, as the propagation is quite good at that time.

Thank you for sharing that tip with up about moving down 1.9 kHz lower than the broadcast frequency. It certainly works–your decodes a very clean.

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Carlos pulls headlines from Kyodo News radiofax

Many thanks to SWLing Post contributor, Carlos Latuff, who writes:

Kyodo News is a Japanese news agency, the only one in the world that still transmits news via radiofax to Japanese vessels, on shortwave frequency of 16971 kHz USB. The international radiofax transmission standard is 120 lines per minute, but the Kyodo News standard is 60 lines per minute.

However, the retransmission of the bulletin in English is done at a cadence of 120 lpm. I’m using an Android application called HF Weather Fax with which I’m decoding the radio signal coming from Japan and received in Porto Alegre, Brazil. The receiver is the Xhdata D-808 and the antenna is a magnetic loop. The image arrived this morning in Porto Alegre, at 4:10 am local time, quite noisy and with a lot of effort I managed to decipher some headlines.

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Carlos’ illustrated listening reports of Typhoon Khanun from Okinawa and KBS

Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art from two recent reports and a radiofax.


Good morning, Thomas.
My radio activity on August 10, 2023.

Attached are two illustrated listening reports about Typhoon Khanun: one from Okinawa Fishery radio station and the other from KBS World Radio.

Okinawa Fishery

Here is the audio via YouTube:

KBS World Radio

Here is the audio via YouTube:

Radiofax


Also attached a typhoon warning issued yesterday by South Korean meteorology agency via radiofax at 05h00 UTC and received in Porto Alegre. Signal wasn’t good, therefore image arrived with poor quality. Even though, it’s possible to notice the map of Korea and the path of Typhoon Lan, now a tropical storm.

Thank you so much for documenting these broadcasts, Carlos, and sharing them with us in the SWLing Post community!

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Carlos’ E-QSL card from JFX Kagoshima

Many thanks to SWLing Post contributor, Carlos Latuff, who writes: 

I got an e-QSL card (see above) from Kagoshima fishery radio station, related to the Radiofax (below) I received on August 2, 2023, at 22h UTC, on 8658 kHz USB, here in Porto Alegre:

That’s just brilliant, Carlos! I didn’t even realize that JFX still issued QSL cards. Thanks so much for sharing this!

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Typhoon Khanun: Carlos’ Radiofax decodes using an XHDATA D-808 and Mag Loop antenna

Carlos’ Radiofax portable receiving and recording station.

Many thanks to SWLing Post contributor, Carlos Latuff, who recently shared a number of Radiofax images of Typhoon Khanun he’s decoded over the past few days–apologies as I’ve been traveling and could not post when received. Carlos writes:

Attached is a satellite image broadcasted today by Japanese meteorological agency via radiofax (7795 kHz USB), and received by me in Porto Alegre, Brazil, at 19h10 UTC.

Even with image quality compromised by the signal, it’s possible to spot powerful typhoon Khanun, approaching Okinawa, with winds of 220 km/h.

Receiver is a Xhdata D-808 with loop antenna, signal decoded by HF Weather Fax app.

Also:

Tropical cyclone forecast broadcasted today by Japanese meteorological agency via radiofax (7795 kHz USB), received in Porto Alegre, Brazil, at 19h50 UTC.

Typhoon Khanun is approaching Okinawa, with winds of 220 km/h.

In addition:

Radiofax (detail) from the meteorological agency of Japan, received today at 19:50 UTC in Porto Alegre, frequency 7795 kHz (USB). In the circle, position of the powerful typhoon Khanun, in southern Japan.

Thank you for sharing these, Carlos. It’s amazing that with such simple equipment we can track and download weather events and imagery like this. Pretty amazing!

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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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Radiofax images of Typhoon Surigae from the Japan Meteorological Agency

Many thanks to SWLing Post contributor, Carlos Latuff, who writes:

Technology considered obsolete, the fax, or better, radiofax (transmitted by radio) continues to be used by several meteorological agencies around the world, which broadcast weather charts to vessels on the high seas. These two images were transmitted today by the Japan Meteorological Agency and received at 19h10 and 19h50 (UTC) in Porto Alegre, Brazil.

The first image is a photo from the Japanese satellite Himawari 8. Even with noise, due to the shortwave propagation, you can see clearly the “eye” of typhoon Surigae.

The second image is a typhoon alert, indicating on the map that Surigae has changed course and is now en route to the Pacific.

These two images were transmitted today by the Japan Meteorological Agency, on the frequency of 7795 kHz

Thank you for sharing this, Carlos. It’s amazing, the amount of information you can receive over the air even with modest equipment by today’s standards. With a modest portable radio and a little decoding software, anyone can grab images like this.

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