Category Archives: AM

Radio Waves: Polish Trains Radio Hacked, Flawed Code, Radio Quiet Boxes, and EAS Reminder

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 NT and Dennis Dura for the following tips:

Poland’s Railways Halted by a Simple Radio Hack (Gizmodo)

he Polish Railway’s radio system was hacked on Friday and Saturday, bringing 20 freight and passenger trains to an unprecedented standstill. The hack, believed to be carried out by Russia, took advantage of a critical flaw in the railway’s radio security system, with the issue reportedly restored within hours.

An investigation into the cyberattack is underway, and the Polish Press Agency (PAP) reported that the radio signals sent to stop the trains were interspersed with a recording of Russia’s national anthem and a speech by Russian President Vladimir Putin.

Poland is an important transportation hub that brings much-needed weapons supplied by Western countries and other aid to Ukraine amid the Russian invasion, and Senior Security Official Stanislaw Zaryn told PAP: “For the moment, we are ruling nothing out.” He continued: “We know that for some months there have been attempts to destabilize the Polish state. Such attempts have been undertaken by the Russian Federation in conjunction with Belarus.”

Train services were reportedly restored within hours and the Polish State Railways said in a statement that “there is no threat to rail passengers” and the cyberattack only caused “difficulties in the running of trains.” [Continue reading…]

Code Kept Secret for Years Reveals Its Flaw—a Backdoor (Wired)

A secret encryption cipher baked into radio systems used by critical infrastructure workers, police, and others around the world is finally seeing sunlight. Researchers say it isn’t pretty.

FOR MORE THAN 25 years, a technology used for critical data and voice radio communications around the world has been shrouded in secrecy to prevent anyone from closely scrutinizing its security properties for vulnerabilities. But now it’s finally getting a public airing thanks to a small group of researchers in the Netherlands who got their hands on its viscera and found serious flaws, including a deliberate backdoor.

The backdoor, known for years by vendors that sold the technology but not necessarily by customers, exists in an encryption algorithm baked into radios sold for commercial use in critical infrastructure. It’s used to transmit encrypted data and commands in pipelines, railways, the electric grid, mass transit, and freight trains. It would allow someone to snoop on communications to learn how a system works, then potentially send commands to the radios that could trigger blackouts, halt gas pipeline flows, or reroute trains.

Researchers found a second vulnerability in a different part of the same radio technology that is used in more specialized systems sold exclusively to police forces, prison personnel, military, intelligence agencies, and emergency services, such as the C2000 communication system used by Dutch police, fire brigades, ambulance services, and Ministry of Defense for mission-critical voice and data communications. The flaw would let someone decrypt encrypted voice and data communications and send fraudulent messages to spread misinformation or redirect personnel and forces during critical times. [Continue reading…]

‘Radio quiet’ boxes will now power world’s largest telescope (Interesting Engineering)

Engineers have designed and built the first set of 24 Small Modular Aggregation RFoF Trunk, or SMART boxes.

Radio telescopes detect faint radio signals arriving from distant cosmic sources.

As a result, it is critical that the site is as silent as possible, meaning that it should be devoid of noise caused by any gadgets, such as Wi-Fi, mobile phones, telescope machines, and other electronic equipment, in and around the radio facility.

Noise interference of any kind can distort or block out these signals, making astronomical studies extremely difficult.

This is one of the primary issues a multidisciplinary team of experts recently tackled by designing an advanced “SMART box” to electrically power the Square Kilometre Array Low Frequency (SKA-Low) telescope in Western Australia.

SKA-Low is part of the upcoming world’s largest ground-based astronomy facility that includes one other telescope, which has been constructed in South Africa.

“The SKA-Low telescope will receive exquisitely faint signals that have traveled across the universe for billions of years. To detect them, the SKA-Low telescope is being built in a pristine radio quiet zone far from the interference created by modern technology,” said Tom Booler, Program Lead for Engineering and Operations at the International Centre for Radio Astronomy Research (ICRAR) of the Curtin University.

“It’s so radio quiet at the observatory site that the biggest potential source of interference is the electronics like ours, due to the proximity to the antennas. That meant our project had to meet the strictest radio emission requirements across the entire Australian SKA site,” Booler added in the official release. [Continue reading…]

FCC Reminds Stations to Check EAS Readiness (Radio World)

The FCC is reminding U.S. radio stations and other EAS participants to make sure the upcoming national EAS test is accessible.

As we’ve reported, FEMA will transmit the nationwide test at 2:20 pm EDT on Oct. 4 using IPAWS, the Integrated Public Alert and Warning System.

To make sure it reaches the most people, the FCC’s Public Safety and Homeland Security Bureau has issued a reminder asking participants to make sure they’ve upgraded their EAS equipment software and firmware to the most recent version; ensured that their equipment can receive and process the National Periodic Test code and “six zeroes” national location code; and otherwise complied with FCC rules.

Here is the text of the planned EAS message:

“This is a nationwide test of the Emergency Alert System, issued by the Federal Emergency Management Agency, covering the United States from 14:20 to 14:50 hours ET. This is only a test. No action is required by the public.” [Continue reading…]

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Radio Waves: AM After Recess, KD9VFU Portable SDR and Ham Radio Help

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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!

Many thanks to SWLing Post contributor, Dennis Dura, for the following tips:

What Happens to AM Radio After August Recess? (NRB)

This fall could be a busy time for broadcasters on Capitol Hill.

Earlier this year, with leading automakers poised to remove AM radio capabilities from new electric vehicle lines, lawmakers in the House and Senate worked across the political aisle to introduce a pair of proposals (H.R.3413 and S.1669) that would preserve AM radio in the auto dash.

Even with Congress in recess, the AM Radio for Every Vehicle Act has continued to benefit from the issue’s momentum. In recent days, the legislation has attracted several new cosponsors, most recently adding Reps. James Comer (R-Ky.), Carlos Gimenez (R-Fla.), Mike McCaul (R-Texas.) and Sens. Catherine Cortez Masto (D-Nev.) Joni Ernst (R-Iowa.), Lindsey Graham (R-S.C.), Josh Hawley (R-Mo.), Chris Murphy Chris (D-Conn.), and Jacky Rosen (D-Nev.), for a total of 150 cosponsors in the House and 34 in the Senate.

The bill sailed through Senate markup in July. Prior to the markup, a manager’s amendment (package of amendments from the lead sponsor or committee chair) introduced a few tailored changes, such as narrowing the bill to “passenger motor vehicles” as opposed to “motor vehicles” more generally and revising the requirement that radio be “conspicuous” to merely “easily accessible.” Changes were also made to the effective date and to the fee structure, but the core elements of the bill—requiring that AM radio will remain in cars and be placed in cars that have eliminated it—was not changed.

Once the Senate is back in session, the bill must be brought up before it is considered on the floor. This can happen by unanimous consent or by voting to adopt a motion to proceed to the bill. After this step of the bill process happens, Senators can then offer amendments. Unlike in the House, amendments in most circumstances are not subject to “germaneness” rules, and can sometimes include aspects that are unrelated to the bill. Furthermore, there is no limit to debate at each step of the process (motions to proceed, amendments, the bill itself), so there is no way to cut off debate to force a vote. This makes the bill’s time and debate on the floor unpredictable, but given its bipartisan support and quick progress so far, S.1669 has a good chance of avoiding these procedural difficulties. [Continue reading…]

Bipartisan Support for AM Radio Legislation Grows (Radio World)

A whopping 184 members of Congress have cosponsored the AM Radio for Every Vehicle Act

It’s a rare occasion when lawmakers on both sides of the political spectrum can agree on any given legislation, but that’s just the case for the AM Radio for Every Vehicle Act. The bill, first introduced in May, continues to garner strong, bipartisan support, with one-third of all senators and members of the House of Representatives cosponsoring the legislation.

The AM Radio for Every Vehicle Act would give the government power to mandate that automakers maintain AM service in their future car models. If adopted, the act would direct the National Highway Traffic Safety Administration to implement new rules requiring car manufacturers to keep the service without any additional charges.

The bill also would direct the Government Accountability Office to study whether alternative communication systems could fully replicate the reach and effectiveness of AM broadcast radio for alerting the public to emergencies.

As of Sept. 7, 150 out of the 435 total members that comprise the U.S. House of Representatives have cosponsored the measure. Of those House representatives, 72 are Democrats and 78 are Republicans.

Additionally, 34 out of 100 senators support the bill. Of those members of Congress, 16 are Democrats and 18 are Republicans. [Continue reading…]

Kaushlesh “KD9VFU” Chandel’s SDRDock Is a Pocket-Sized Software-Defined Radio Powerhouse (Hackster.io)

Built around a Raspberry Pi and an Airspy HF+ SDR dongle, the SDRDock includes a custom ESP32-powered physical user interface.

Radio ham Kaushlesh “KD9VFU” Chandel is putting together a pocket-sized device designed to make it easier to play with software defined radio (SDR) on-the-go: the Raspberry Pi-powered SDRDock.

“Built on a Raspberry Pi platform, SDRDock aims to enhance the SDR experience by integrating all essential hardware components onto a single, streamlined PCB,” Chandel claims of his creation. “With the convenience of 3D-printable enclosures and compatibility with various SDR dongles, this device is both accessible and versatile. What sets it apart is its tactile interface, featuring user-friendly knobs and buttons that transform complex SDR tasks into an intuitive and engaging experience.”

Radio ham Kaushlesh “KD9VFU” Chandel is putting together a pocket-sized device designed to make it easier to play with software defined radio (SDR) on-the-go: the Raspberry Pi-powered SDRDock.

That interface is immediately visible on the very front of the device. Where most software-defined radio work is done on a laptop or desktop with a keyboard and mouse, Chandel wanted something more streamlined — so developed what is, in effect, a custom mixing deck-style user interface based on 3D knobs and sliders. These are then mapped to actions in the SDR software running on the Raspberry Pi — meaning it’s possible to hone in on an interesting signal with no keyboard or mouse in sight. [Continue reading…]

Climate change is affecting telecommunications infrastructure. Ham radio might be able to help (CBC)

The technology is ‘an unsung hero’ for getting messages out, one operator says

As Atlantic Canada gears up for another hurricane season after a year of unprecedented disasters linked to climate change — including post-tropical storm Fiona last September — amateur radio operators say a simple technology can play a part in the response to disasters across the region.

When Fiona hit Nova Scotia, it affected electrical grids and telecommunications networks, leaving some people unable to call for help. That experience in particular prompted a renewed interest in amateur radio — also known as ham radio — which allows non-professional users to send messages without requiring the internet or cell phone networks.

“I think it’s kind of an unsung hero in communications that gets forgotten in the noise of disaster when it comes to, ‘Well, how do we get that message out?'” said John Bignell, president of the Halifax Amateur Radio Club.

Ham radio operators use a special designated set of frequencies — not the regular AM or FM radio signals — to exchange messages locally or around the world.

They say the technology can help Nova Scotians respond to the increasing risks of extreme weather, as climate change forces a reckoning with communications infrastructure across the country. [Continue reading…]

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Radio Waves: Old Time Radio Book, AM to Digital, and Radio in Maui, and Nationwide Emergency Alert Test in October

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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!

Many thanks to SWLing Post contributors Mike, David Iurescia, Rich Dalton, and Dennis Dura for the following tips:

Former Downriver music educator pens book on history of old-time radio (News-Herald)

Brian Rogers is an adventurer of sorts. He’s what you might call a renaissance man. Born in Buffalo, New York, Rogers has been a part of the fabric of the Detroit area since his family moved here in 1943.

Since then he’s been a music educator, choir and band director, speech therapist, paralegal and a freelance writer.

You could say that everything Rogers has pursued, both vocational and otherwise, has centered on the art of communication. And the affable educator and author certainly honed his literary skills through the revised edition of his new book “Adventures in Old Time Radio.”

It is 146 pages and 50 chapters of brief excerpts and articles on the evolution of radio from its inception in the 1920s through 1960.

Rogers, a longtime Allen Park resident who now lives in Dearborn with his wife, Clara, was inspired to compile the book out of his love for, and activity in, the shortwave radio community and as a columnist for the Great Lakes Monitor. [Continue reading…]

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Crawford Will Flip an Alabama AM to All-Digital (Radio World)

Crawford Broadcasting is going to give all-digital HD Radio a try on an AM station in Alabama.

On Sept. 1 the Christian broadcaster will flip WYDE in Birmingham to the MA3 mode; only listeners with HD Radio receivers will be able to hear the AM signal after that, though the same content will be available on two local FMs. Two other AMs in the country currently operate in all-digital.

“We’d like to give all-digital AM a try and see how it performs,” said Director of Engineering Cris Alexander. “The timing is right for us.”

The FCC approved the use of all-digital AM in 2020. WYDE airs at 1260 kHz with a 5 kW signal by day and 41 Watts at night.

“That particular station is ideally situated for an all-digital move,” said Alexander, who also is technical editor of Radio World Engineering Extra. [Continue reading…]

Radio and Maui: A Failure To Communicate? (Jacobs Media Strategies)

The morbidly funny video from the 1960’s classic “Cool Hand Luke” became a popular meme well before there was an Internet. You see it pop up when organizations or people on the same team (or in a relationship) suffer a serious breakdown in communication. Suffice it to say, this is a common condition.

When we look at what happened in Maui, we have a human tragedy that is off the charts. By the time this is all set and done, we will likely be looking at hundreds of people dead, upwards of $6 billion in funds to restore the damage, and incalculable pain and suffering. When weather disasters happen, widescale damage is often unavoidable. And the wildfires that swept through Lahaina fit that definition. But could the damage in human, financial, and property costs have been mitigated or decreased?

Maui is a place where many of us have been on vacation. Looking at the photos, it is unimaginable just how extensive the damage is. And in the aftermath, there are questions – lots of them – about what went wrong. [Continue reading…]

Hawaii Puts AM Radio to Work on Maui

The state has acquired four portable emergency advisory radio systems

Emergency officials in Hawaii will use AM broadcast equipment to help communicate with the public during the ongoing wildfire recovery efforts on Maui.

The State of Hawaii Emergency Management Agency has purchased four RadioSTAT portable emergency advisory stations from Information Station Specialists in Michigan, which also makes specialized systems for applications such as Traveler’s Information Stations and Highway Advisory Radio.

The Wireline Competition Bureau of the Federal Communications Commission last week granted the state an emergency authorization to use the stations immediately at four locations including a checkpoint and police and fire stations. They can be used on 1620, 1650, 1670 or 1700 kHz. [Continue reading…]

FEMA and FCC Plan Nationwide Emergency Alert Test for Oct. 4, 2023 (FEMA)

Test Messages Will be Sent to All TVs, Radios and Cell Phones

WASHINGTON — FEMA, in coordination with the Federal Communications Commission (FCC), will conduct a nationwide test of the Emergency Alert System (EAS) and Wireless Emergency Alerts (WEA) this fall.

The national test will consist of two portions, testing WEA and EAS capabilities. Both tests are scheduled to begin at approximately 2:20 p.m. ET on Wednesday, Oct. 4.

The WEA portion of the test will be directed to all consumer cell phones. This will be the third nationwide test, but the second test to all cellular devices. The test message will display in either English or in Spanish, depending on the language settings of the wireless handset.

The EAS portion of the test will be sent to radios and televisions. This will be the seventh nationwide EAS test.

FEMA and the FCC are coordinating with EAS participants, wireless providers, emergency managers and other stakeholders in preparation for this national test to minimize confusion and to maximize the public safety value of the test.

The purpose of the Oct. 4 test is to ensure that the systems continue to be effective means of warning the public about emergencies, particularly those on the national level. In case the Oct. 4 test is postponed due to widespread severe weather or other significant events, the back-up testing date is Oct. 11.

The WEA portion of the test will be initiated using FEMA’s Integrated Public Alert and Warning System (IPAWS), a centralized internet-based system administered by FEMA that enables authorities to send authenticated emergency messages to the public through multiple communications networks. The WEA test will be administered via a code sent to cell phones.

This year the EAS message will be disseminated as a Common Alerting Protocol (CAP) message via the Integrated Public Alert and Warning System-Open Platform for Emergency Networks (IPAWS-OPEN).

All wireless phones should receive the message only once. The following can be expected from the nationwide WEA test:

Beginning at approximately 2:20 p.m. ET, cell towers will broadcast the test for approximately 30 minutes. During this time, WEA-compatible wireless phones that are switched on, within range of an active cell tower, and whose wireless provider participates in WEA, should be capable of receiving the test message.
For consumers, the message that appears on their phones will read: “THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed.”
Phones with the main menu set to Spanish will display: “ESTA ES UNA PRUEBA del Sistema Nacional de Alerta de Emergencia. No se necesita acción.”

WEA alerts are created and sent by authorized federal, state, local, tribal and territorial government agencies through IPAWS to participating wireless providers, which deliver the alerts to compatible handsets in geo-targeted areas. To help ensure that these alerts are accessible to the entire public, including people with disabilities, the alerts are accompanied by a unique tone and vibration.

Important information about the EAS test:

The EAS portion of the test is scheduled to last approximately one minute and will be conducted with the participation of radio and television broadcasters, cable systems, satellite radio and television providers and wireline video providers.
The test message will be similar to the regular monthly EAS test messages with which the public is familiar. It will state: “This is a nationwide test of the Emergency Alert System, issued by the Federal Emergency Management Agency, covering the United States from 14:20 to 14:50 hours ET. This is only a test. No action is required by the public.

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Radio Waves: Nebraska Radio History, KBS Radio, AM Radio, Free Radio Preservation Webinar, and Belka Review

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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!

Many thanks to SWLing Post contributors Mike, Jeramy Phillips, Fred Waterer, and Dennis Dura for the following tips:

Nebraska Radio History

Many thanks to SWLing Post contributor, Jeramy Phillips, who writes:

Greetings, Thomas.

I thought you might like this little bit about some Nebraska radio history:
https://history.nebraska.gov/norfolks-wjag-and-the-roots-of-political-talk-radio/

That blog post also links to an article that has a lot more in-depth information.
https://history.nebraska.gov/wp-content/uploads/2018/05/doc_publications_NH2011WJAG.pdf

Enjoy!

KBS WORLD Radio 70th Anniversary Special (KBS World)

August 15 marks 70 years since the start of KBS WORLD Radio. For the past 70 years, KBS WORLD Radio grew and evolved with the development of Korean history, through the Korean War, the democratization of Korea and the rapid economic growth that South Korea has seen.

And to celebrate our 70th anniversary, we have prepared a special #InDepthNewsAnalysis with three public media experts to look back on the past 70 years of KBS WORLD Radio, to discuss the role of public international media and also how the next 70 years to come.

Letter: Emergency Response in Maui Fires Highlights Radio’s Importance (Radio World)

Engineer Ron Schadt says people have become way too reliant on cell phones

An interesting story from CBS News about the fires in Maui. If you read through it, nothing worked. Sirens didn’t work, cell phones were sketchy or not working at all, no electricity, etc. etc. If you read through the entire story, near the end is one line: “Emergency management had to resort to radio to communicate with the victims of the fires.”

Well, well, interesting that what we have been saying all along is really true, the oldest form of contacting people is still the most reliable and unfortunately, because people are so attached to their stupid phones, radio has to be “resorted to.” This little section of this article needs to get to these senators and congressmen who are on this AM in every car movement. [Continue reading…]

Save AM Radio? Why?!? (The Gate)

Politicians come to the rescue.

Radio broadcasting using amplitude modulation — or AM — has been used commercially for greater than 100 years. Its heyday generally ranged for decades from the 1930s through the 1970s as its programming content transitioned from dramas and comedies to popular music to talk programs, with the latest news mixed into each format. Advancements in technology has arguably rendered AM radio virtually obsolete. Why save AM radio from extinction?

Save AM Radio? Why?!?

The waning popularity of terrestrial AM radio technology is not so much the reason as to its potential extinction. Rather, the reason is due to the technology of electric vehicles — and because rental car companies such as Hertz have been increasing the number of electric vehicles in their fleets, the days of listening to AM radio in rental vehicles may be numbered.

The electric motors which power the drive wheels in order to propel electric vehicles also tend to generate electromagnetic interference with the reception of AM broadcast radio directly through the receiver. That interference can result in annoyances which range from buzzing, distortion, and fading of the signal itself to static and sounds of crackling instead of clear reception. Streaming audio of programs from AM radio stations — as well as the reception of FM stations — remain unaffected.

Always seeking to save time and money, eight of 20 of the leading carmakers in the world have removed AM broadcast radio from their electric vehicles; and manufacturers of electric vehicles are considering eliminating the option of tuning in to AM radio in their vehicles. Engineers have not found an easy way to eliminate the aforementioned interference without adding excessive weight to the car or increasing the cost of the vehicle…. [Continue reading…]

Preserving Broadcast History (NAB)

Join NAB and the Library of American Broadcasting Foundation (LABF) on Wednesday, August 23 at 2 p.m. ET for the first of a two-part series to learn the importance of documenting and preserving broadcast history for future generations.

Part One: The “Preserving Broadcast History” webinar will provide guidance for broadcasters on how to catalog your station’s history, best practices for creating an inventory and where to store this data and information. A Q-and-A will follow the webinar.

Featuring:

Jack Goodman, co-chair, LABF
April Carty-Sipp, executive vice president, Industry Affairs, NAB
Laura Schnitker, Ph.D., C.A., curator, Mass Media and Culture, University of Maryland’s Special Collections and University Archives
Mike Henry, reference specialist, University of Maryland’s Special Collections and University Archives

Click here for more information and to register for free!

Belka Review (N9EWO)

Click here to read Dave’s review of the Belka receiver. Thanks to Mike for the tip!

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Guest Post: A review of the Chaoyuan LC90 Hybrid Shortwave/4G/Internet Radio

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Many thanks to SWLing Post contributor, Michael Ye (BD4AAQ), for the following guest post:

The LC90, a Great Radio Spanning Two Worlds

by Michael Ye (BD4AAQ)

It is an awkward era for radio receivers. Although technology becomes more and more advanced and increasingly sophisticated radios are made, there are fewer and fewer stations to listen to. But hardcore radio hobbyists, mostly hams and shortwave listeners, would not give up the hobby. They continue to look for and enjoy stations among noises in the airwaves. Although Internet radios have been around for a long time, I never thought seriously about them. Perhaps I was stubborn, but in my mind, radios were noises and noises were radios and it’s the stations among the noises that I enjoyed. Receivers without noises were hardly real radios.

Until I got my first full band radio with Internet features. The LC90 was a pleasant surprise, completely changing the way I look at radio receivers. The LC90, or “full band smart Internet radio”, is my first shortwave radio AND Internet radio in one. There may be other radios with Internet features, but I have heard of few receivers that integrate the traditional radio (shortwave in particular) and the Internet. The LC90 was launched in China in early 2023, and quickly became popular among hobbyists thanks to the unique combination. News has been confirmed that the overseas version of the LC90 will be launched later this year. It provides more options for users at a time when shortwave broadcasters continue to shut down transmitters and bid final farewell.

Chaoyuan Company

The manufacturer of the LC90 is Chaoyuan, an electronics company based in Shenzhen, China, known for mobile phone design and Hi-Fi equipment. In recent years they started to design and make radios. And they are serious about the business, too.

The LC90 full band smart Internet radio

The Radio at a Glance

The radio is of regular size. A computer mouse is placed in the picture above, so you have an idea of not only the radio’s looks but also its size. The exact dimensions are 200x122x40mm. Its weight is 640 grams. The radio has a built in 4G SIM card, with 3G prepaid data. You have to add credit to the card in time by scanning a QR code on the screen before the built-in SIM card expires. You can also use your own SIM card by inserting it to a slot at the bottom of the radio. And of course, you could use Wi-Fi at home.

Although the radio is a combination of the traditional radio and the Internet, it is very ingeniously designed and does not put off the user with too many bells and whistles – you could press the tuning button to change the shortwave band and the fine tuning button to change the band width. The tuning button also serves as an “enter” key. These are clever designs that effectively save extra buttons. I have not seen a similar design in other radios.

For those who do not read Chinese, the upper five buttons are, roughly, “Configure”, “Timer”, “Setup”, “History” and “Favorites”. The four buttons on the left: “Confirm”, “Stations”, “News” and “Menu”. The four buttons on the right: “Back”, “Sequence”, “Rewind” and “Fast Forward”. The button with a globe says “Internet”.

The radio has excellent audio quality, rich bass, with a well-balanced frequency response. It is powered by two 18650 rechargeable lithium batteries. The radio has no back stand.

Traditional Radio

All three modes (or bands) are available, FM, MW and SW, as shown in the three buttons on the upper right (to get LW just press MW again). The FM band covers 64-108MHz, which includes Japan’s FM band. During the FMDX season you could have stations from Japan and other countries to explore. The SW band covers 2300-26100KHz, continuous, almost the entire shortwave band, more than enough for broadcast listening. The antenna jack works for all three modes (or bands).

Excellent Shortwave Performance

As a shortwave listener of many years, I am most interested in the radio’s performance in shortwave reception. Well, it is indeed very good in terms of sensitivity, selectivity and audio quality, with no compromise although the radio has an Internet section which requires additional space and resources.

When you use the radio indoor, reception could be poor and you can insert an external antenna to the antenna jack. Unfortunately, I cannot connect my AOR LA400 loop antenna to it as the antenna jack is too close to the tuning knob and so there is not sufficient space for the plug (see picture). Generally, a 3.5mm plug with a wire should work well if you extend the wire outside.

The external antenna jack

If there is a disappointment, its shortwave reception does not decode SSB signals. If the user is not a ham radio hobbyist, SSB reception may not be really needed anyway and the buttons, circuits and space can be saved accordingly.

Fair FM Reception

FM reception is good, but there is no obvious improvement of reception when an external plug is inserted in the antenna jack.

Mediocre MW Work

Reception on the lower bands, e.g., the medium wave band, is always a challenge in cities. It is not surprising that medium wave performance of the LC90 is mediocre at best. I don’t do much MW DXing but nowadays for each MW frequency there is almost always an FM frequency. Let’s face it – we should perhaps forget about medium wave reception in cities where there is excessive low band EMI.

However, if you go outdoor with the radio, medium wave reception can still be a lot of fun. And, contrary to FM reception, an external antenna significantly improves its performance!

Internet Radio

Admit it or not, the best days of traditional radio are gone, and while we continue to have fun on the old time radio, we should not hesitate to embrace newer technologies such as the Internet. By launching the LC90 and combining the two, Chaoyuan has made a significant move.

The Internet radio is an integrator of many online stations on the Internet, and more. It is completely different from the traditional radio which receives radio signals transmitted on air. The Internet radio, which relies on the Internet, provides much better audio quality, no noise, customizable and replay-able.

If you want to kill time and look for signals from noises, turn to shortwave and enjoy DXing. If you feel like listening to solid content or enjoying noise-free music, the Internet radio is there for you. This Internet radio integrates major web stations in China and on that basis the user can further select and configure their own favorites. Among apps that are built-in is Ximalaya FM, the leading audio platform in China. Due to requirements of policies and regulations in China, the user does not have much discretion to include foreign stations in the radio. However, Chaoyuan has indicated that they are working in an effort to secure authorizations from Spotify, Alexa and Pandora which they hope could be incorporated in the overseas version of the LC90. The future overseas version is expected to give the user more discretion to include online stations of their own choice.

A closer look at the display of the Internet Radio

Two buttons, Ai1 and Ai2, are voice assistants. Activate and speak to them and the radio directly plays the content (Ai1) or displays their findings for you to choose from (Ai2).

Finally, this is a radio with the most accurate time. There is no need to set the time for it, as it is based on the Internet.

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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

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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!

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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Radio Waves: AM Vehicle Act Passes Committee, iHeart Supports AM, Swan Island and Equatorial Guinea

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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!

Many thanks to SWLing Post contributor Dennis Dura and Tracy Wood for the following tips:

Senate Committee Passes “AM For Every Vehicle Act,” Sends It to Senate Floor (Radio World)

Committee gives the legislation a green light

On Thursday morning, the U.S. Senate Committee on Commerce, Science and Transportation officially passed the AM For Every Vehicle Act on to the Senate floor. The executive session was broadcast live and facilitated by committee chair Sen. Maria Cantwell, a Democrat representing Washington state.

The ranking Republican, Sen. Ted Cruz, supports the measure, saying in a statement that “AM radio is vital to free expression and viewpoint diversity” and “allows Americans, especially conservatives, to communicate their points of view and help free speech flourish.”

The legislation was passed via a voice vote, and, while not every senator’s vote was recorded, the National Association of Broadcasters said Sen. Gary Peters, a Democrat from Michigan, asked that he be recorded as a ‘no.’” Michigan is home to the U.S. automaker industry, which opposes the AM For Every Vehicle Act. The Alliance for Automotive Innovation, which has a base in Michigan, recently said, “Congress has never mandated radio features in vehicles ever before.” It called the bill unnecessary. [Continue reading…]

“iHeart Is Still Focused on AM as a Medium” (Radio World)

Littlejohn and Mullinax describe recent projects to protect and extend its investment

At a time where the viability of the U.S. AM broadcast band has come under the microscope, what’s the prevailing attitude of iHeartMedia and the 250 AM properties it owns and operates?

Continue to invest, says Jeff Littlejohn.

“iHeart is still focused on AM radio as a medium,” said the company’s executive vice president of engineering and systems integration. “We see the importance AM has not only as an entertainment medium, but for news and information.”

Among other things, Littlejohn strongly believes in AM’s importance for emergency weather coverage. Perhaps nowhere is that more evident than in South Florida.

In addition to being an iconic AM signal dating to the 1920s, iHeartMedia’s news/talk 610 WIOD in Miami has received notoriety and awards — including regional recognition from the Associated Press — for its breaking news and weather coverage, notably during Hurricanes Andrew, Katrina and Wilma. [Continue reading…]

Notes about two Spanish language stations (Tracy Wood)

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

I continue to enjoy the blog. Yes, those radio sets that appear in Spanish TV (and in the movies) are great! Lots of Grundigs, Philips, Telefunkens, and national brands.

Here are the two items

(1) Swan Island

At one time this was the home to Radio Swan, the US-funded anti-Castro clandestine radio station on AM and shortwave of the 1960s. Now Honduras wants to convert it to a prison island

https://time.com/6295724/honduras-islas-del-cisne-prison-island/

For more details see: https://en.wikipedia.org/wiki/Radio_Swan

(2) Equatorial Guinea

Thanks to WorldRadioMap for originally posting this audio link [note that this playlist must be downloaded and used with an audio streaming application]: https://rrsatrtmp.tulix.tv/tvgeradio/tvgeradio/playlist.m3u8

Yes. Radio Nacional de Guinea Ecuatorial, Malabo, is now streaming on the Internet. The main language is Spanish but I suspect other languages may be heard. The hosting company (out of Atlanta) handles both their TV and radio streams. The TV channel’s website is https://tvgelive.gq/ but there is no radio-specific website yet.

As a reminder, the country’s other station is commercial – Asonga Radio. It is owned by the president’s son. Audio is at https://asongaradio.com/