Category Archives: FM

Radio Waves: Great Solar Storm of 1940, Hawaii DJ’s Lack Vital Info, Edison Claims AM/FM Audio Usage Surpasses YouTube, and Radio 4 Longwave Reception

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!

Many thanks to SWLing Post contributors Troy Riedel, Dennis Dura and David Shannon for the following tips:


The Great Solar Storm of March 1940 (Spaceweather.com)

This story is shocking. On March 24, 1940, a solar storm hit Earth so hard it made copper wires in the United States crackle with 800 volts of electricity. A New York Times headline declared that a “sunspot tornado” had arrived, playing havoc with any signal that had to travel through metal wires.

“For a few hours it completely disrupted all long-distance communication,” wrote astronomer Seth B. Nicholson in a recap of the event for the Astronomical Society of the Pacific. Radio announcers seemed to be “talking a language no one could understand.” The New York Times reported that more than a million telephone and teletype messages had been garbled: “Veteran electrical engineers unhesitatingly pronounced it the worst thing of its kind within their memory.”

So why have you never heard of this storm? Even in 1940 it was fairly quickly forgotten. World War II was underway in Europe, and the USA was on the verge of joining. People had other things on their minds.

Modern researchers, however, are paying attention. A team led by Jeffrey Loveof the USGS Geomagnetism Program just published a new study of the event in the research journal Space Weather. Their work confirms that it was no ordinary solar storm.

“It was unusually violent,” says Love. “There were very rapid changes in Earth’s magnetic field, and this induced big voltages in long metal wires.” [Continue reading at Spaceweather.com…]

[…]Read Love’s original research here: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022SW003379

A valued source of communication, Maui radio DJs grapple with lack of information (Hawaii News Now)

HONOLULU (HawaiiNewsNow) – From taking calls of desperation, to sharing what they know when they know it, local radio hosts have long been a valued source of communication, especially during disasters.

However in light of the recent fires, many on Maui have expressed concerns that information from the government in times of disasters is far too sparse and delayed.

Lines of communication remain severed with cell towers burned to the ground. That’s leaving radio as one of the few dependable sources of communication, which is putting added pressure on local outlets.

Veteran radio host Ed Kapoi of KISS took a call from Napili, North of Kaanapali.

“People are desperate. Babies need diapers and formula. The elderly need their medication,” one caller said through tears.

It just rocks you to your core it really does. It’s hard to take those kind of phone calls,” Kapoi said.

Fellow KISS radio host Brandee Carvalho added, “We hear their crying, their tears, their desperate pleas. It is real. It’s very real for me.” [Continue reading…]

Hawaii residents turn to radio station for vital updates (YouTube)

Click here to watch on YouTube.

AM/FM Radio Is Most Listened to Audio Source in U.S. (Radio World)

Edison Research says streaming music and YouTube claim 2nd and 3rd place

Edison Research just released its latest “Share of Ear” findings. The quarterly study determines what portion of all audio time is spent with different platforms.

The analysis looks at all audio usage across the United States among Americans age 13 and older. The data is gathered from a detailed one-day diary entry administered either online or via mail. Share of Ear data has been continuously updated since 2014. Find this quarter’s insights compiled in the graph below.

Per Edison’s findings this quarter, AM and FM radio (counting both over-the-air and streams) accounted for 36 percent of all listening for Americans age 13 and older. Streaming music via platforms like Spotify, Pandora and Apple Music, among others, accounted for 18 percent of all listening time. Using YouTube for music and/or music videos accounted for 14 percent of all listening time; followed by podcasts, SiriusXM and “owned music” — a.k.a. CD’s and other digital music files.[Continue reading…]

Radio 4 gets a terrible reception over scrapping long wave amid fears older people will struggle with digital radio” (Daily Mail)

[Editor’s Note: Per Wikipedia, “The Daily Mail is a British daily middle-market tabloid newspaper and news website published in London.”]

Listeners have criticised Radio 4’s retreat from long wave amid fears that older people will struggle with digital radio.

The BBC said last year it will stop scheduling separate content for the long wave version of the station in ‘anticipation of the closure’ of the platform.

Programmes which are on long wave but not Radio 4 FM include Test Match Special, editions of the Shipping Forecast, the Daily Service and a longer version of Yesterday in Parliament.

These shows will be available on other platforms once separate scheduling for long wave ends next March.

It is expected that listeners will be directed to the digital BBC Sounds audio platform to find these programmes. [Continue reading…]


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The new Sangean MMR-99 series emergency radio

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

Thomas,

I saw the Radio World review of the Sangean MMR-99 (page 16).

As I usually do I go to the source which in this case is the Sangean website to find

    • Sangean MMR-99 FCC AM/FM and in the USA version Weather radio band.
    • Sangean MMR-99 which is the UK version which is AM in the MF band for 9/10 kHz channel spacing No Low Frequency (LW) band.
    • Sangean MMR-99 DAB which is interesting because it is typically DAB+/FM no AM or Weather Band.

Your posters around the world may wish to review this radio which is available on line and in retailers.

Thank you for the tip! Impressive that MMR-99 is IP55 rated and ruggedized. I like the fact they’ve also made regional variants of this radio even including DAB.

The US version of the Sangean MMR-99 is available on Amazon.com (affiliate link) for $89.76 shipped

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Sometimes simple works . . . really well! Exploring the CCrane EP PRO

By Jock Elliott, KB2GOM

This particular adventure began about three weeks ago with an email from CCrane. “Timeless, Easy to Use with Long Range Radio Reception” the headline read. Further, the accompanying text promised: Comes with needle and dial tuning, one button for power, one button for a bright display light, and has no clock or alarm.  The radio in question was the C.Crane CCRadio-EP PRO.

The “Long Range Radio Reception” initially caught my eye, but the simplicity of an old-fashioned “needle and dial” – what I call “slide rule” – tuning” also appealed to me, so I emailed CCrane, asked them if they would like to send me one for review, which they did, without charge.

While waiting for the EP PRO to arrive, I examined the photos of the EP PRO on the CCrane website, and I noticed something peculiar: a switch on back for choosing between 9 kHz tuning steps and 10 kHz tuning steps. Whaaat?! Why in the world would you need such a thing on a radio with needle and dial tuning?

We’ll get to the answer to that question shortly, but first let’s take a tour of the CCrane EP PRO.

The case is a rectangle with rounded corners that measures 11.4″ W x 7.3″ H (8.4″ H with handle) x 2.75″ D and weighs 4.5 pounds without batteries. Starting on the left front panel, you’ll find a 5-inch speaker. To the right of that, there is the slide rule (needle and dial) tuning setup, with a small red light on the right side that illuminates when a station is found. Below that is a CCrane logo and further below is a switch for selecting AM (520 – 1710 kHz, 10 kHz steps; 522 – 1620 kHz, 9 kHz steps), FM (87.5 – 108 MHz), or FM stereo; a knob for adjusting bass, a knob for adjusting treble, and a knob for choosing between narrow (2.5 kHz) and wide (6 kHz) filter bandwidths.

On top of the EP PRO are a red POWER button, a black button for lighting the tuning dial, a flip-up carry handle, and a 36-inch telescoping antenna for FM reception. (Inside the case is a ferrite bar antenna – 12mm x 200mm (7.9″) long with CCrane’s Twin Coil Ferrite® technology.)

On the right side of the case at top is the tuning knob, below that a knob for fine-tuning the internal antenna for AM reception, and at the bottom a knob for volume. On the left side of the case, you’ll find a 1/8” stereo headphone jack, a line-in jack, and a socket for plugging in an external 6-volt AC adaptor which is provided with the EP PRO.

On the back of the radio is a hatch for installing four D-cell batteries (CCrane says it will run for about 175 hours at moderate volume with the dial light off), external antenna connections: spring loaded for AM and “F” connector for FM, a switch for selecting internal or external AM antenna, and the switch for selecting 9 or 10 kHz tuning steps.

That’s it. The EP PRO is almost Zen-like in its simplicity. There are no seek buttons, no automatic storage functions, no memories, no key pad. And there is a darn good reason for that. It turns out that the immediate predecessor of the EP PRO, the CCrane EP, was created by Bob Crane because his mother wanted a very simple radio that was easy to operate. The CCrane EP, a true needle and dial analog radio, was the result.

Bob believed that, besides his mother, there was a market for such a radio, and there was. Unfortunately, after a time, the analog chips necessary to build the CCrane EP became unavailable. As a result, the radio was redesigned internally using modern digital chips (essentially the same as those in CCrane’s model 2E and 3 radios) while keeping it simple and easy to operate. So inside what looks like an old-fashioned analog radio beats the heart of a high-performance digital radio that combines the high sensitivity needed to hear distant stations with excellent selectivity to block signals from the side.

In my view, the EP PRO is great fun to operate. In the predawn hours on a weekend morning with the rain falling softly outside, I started tuning slowly across the AM dial with the EP PRO in my lap. Near the bottom end, a couple of sports mavens were chatting about a pitcher who had a couple of rough two initial outings and then had “settled in.”

A bit further up the dial Dionne Warwick was telling me to “walk on by.” Then I ran into a music station competing with a talk show considering “the Bible, angels, and UFOs.”

Up the dial some more, apparently a good deal on a high performance car could be had at a dealership in Connecticut; then an air quality report for New York City, a female voice delivering a long discourse in French and so on up the dial.

I was impressed at the number of stations that the EP PRO was pulling in, and it brought me back to the simple joy of tuning around to see what’s on the air.

Each time a discernible station appeared, the red tuning LED would light up. As needed, I used the antenna tuning knob and the bandwidth selection switch to tweak the signal. The needle and dial tuning gives an approximate indication of where on the band the radio is tuned, so if you want a positive ID, you need to listen for a station ID or some other clue to the station’s location.

At one point I jumped to the FM dial and found I could easily pick up many FM stations even with the whip antenna collapsed. In all, I am of the opinion that both the AM and FM sides of the receiver are pretty “hot,” and at no time did I find myself wishing for an auxiliary antenna for more signal.  Further, the sound through headphones or the speaker is very pleasant indeed. In my mind, the relatively unadorned exterior of the EP PRO belies its outstanding performance. To stretch an analogy, it’s a nitro-burning funny car in the body of a Honda Civic, and you don’t have to be a genius to drive it.

If you’re looking for a high-performance radio that is easy to use and sounds good through speaker or headphones, the CCRadio EP PRO delivers the goods. For a content DXer like me, the EP PRO encourages me to tune around and discover the magic of radio all over again.

CCRadio-EP Pro Retailers:

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Radio Waves: Pirating Putin, Refuge Hosted Radio in South Sudan, Drivers Still Love Radio, and TIS Request

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!

Many thanks to a number of SWLing Post contributors including John, Andrea, and Dennis Dura for the following tips:


The pirate-radio DJ who took on Putin (The Economist)

Tens of thousands of ordinary Russians are joining the resistance

n a bedsit in Vologda, a Russian city 500 miles north of Moscow, a man sat at a desk surrounded by recording equipment. In his early 60s, tall and thin with long grey hair, glasses and a moustache, he looked like an ageing rock star making a new album. His name was Vladimir Rumyantsev. He lived alone, and his day job was as a stoker, tending a furnace in a factory boiler-room. In the evenings he was the dj of his own pirate-radio station, broadcasting anti-war diatribes against Putin’s “special military operation” in Ukraine.

Rumyantsev set up the station before the war as a hobby. Radio Vovan (a play on a nickname for Vladimir) mainly broadcast music from the Soviet era that he found in online archives. He said he needed a break from oppressive state propaganda. “Some kind of ‘patriotic’ hysteria started on the airwaves, and as the sole occupant of the flat I voted unanimously to ban the broadcasting of federal tv and radio channels in my home. Well, I had to create something of my own to replace it,” he wrote to me. [Continue reading. Note that this article may be behind a paywall from your location…]

In South Sudan, Refugees Train as Radio Hosts to Keep Residents Informed (VOA News)

Jabrallah Tia was a teacher in Sudan in 2011 when a brutal war forced him to flee to a refugee camp in newly established South Sudan. Thirteen years later, Tia is still in a camp but with a new career: journalist.

The Ajuong Thok camp in the Ruweng Administrative Area is home to almost 40,000 refugees and displaced people, most from Sudan. Another influx is expected soon, after a fresh conflict broke out in April.

“It’s terrible now when Sudan has started another war. … We’re expecting more people to come from Sudan, as they’re fleeing the war there,” Tia told VOA in a video interview over Zoom.

He knows what that’s like. Tia had to leave everything behind when he fled his home in South Kordofan state. But he said he has found new meaning in his journalism work. Continue reading

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Radio Waves: Hamvention Attendance Record, WWII Codebook, TuneIn for AM Stations, and 101 Years of Chicago Radio

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!

Many thanks to SWLing Post contributors Dennis Dura, Ron Chester, and Ulis Fleming for the following tips:


Hamvention 2023 breaks attendance record (WHIO)

XENIA — A new attendance record was set at Hamvention this year.

This year 33,861 people flooded to the Greene County Fairground and Expo Center for the world’s biggest amateur radio show, according to a spokesperson for Hamvention.

The number surpassed the previous record by more than 1,300 people. It’s also more than 2,000 greater than last year’s attendance.

This year’s Hamvention ran May 19-21 and brought in people from across the globe.

“Things went very smoothly due to the dedication and hard work of close to 700 volunteers,” Jim Storms, Hamvention General Manager, said.

Hamvention 2024 is scheduled for May 17-19. [Watch report on WHIO…]

Man’s WW2 codebook unearths St Erth’s ‘best-kept secret’ (BBC)

A retired schoolteacher is shedding light on an “ultra secret” World War Two listening station in Cornwall.

Mike Griffiths unearthed the secret existence of the MI6 outstation in St Erth when his late father, Harry Griffiths, left him his code book.

He has revealed the role his father and others played in providing intelligence for code-breakers at Bletchley Park.

Mr Griffiths said he “couldn’t be prouder” of what his father achieved. Continue reading

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Radio Waves: Sri Lanka DRM, Czech Radio, Ham Radio Ops Ready for Disaster, Space Pirates, FM Not Far Behind AM, and AM Hearing Live Today

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!

Many thanks to SWLing Post contributors Dennis Dura, David Iurescia, John Palmer, Gareth Buxton, and Mangosman for the following tips:


Sri Lankan Broadcaster Goes DRM Following Listeners’ Request (DRM Consortium)

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:

Czech Radio centenary: Listeners send congratulations (Czech Radio)

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

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Don Moore’s Photo Album: Western Venezuela

Many thanks to SWLing Post contributor, Don Moore–noted author, traveler, and DXer–for the latest installment of his Photo Album guest post series:


Don Moore’s Photo Album: Western Venezuela

by Don Moore

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

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