Tag Archives: Ham Radio

A Shining Moment for Ham Radio

By Jock Elliott, KB2GOM

“Any sufficiently advanced technology is indistinguishable from magic.”

– Arthur C. Clarke

Shame on us: we take it for granted that someone can speak into a microphone miles away (perhaps thousands of miles), we can hear them, reply to them, share information and maybe even get someone some help.

It’s astonishing, but we accept it as commonplace. (Let me remind you: every time you fire up your mobile phone – smartphone or otherwise – you’re using a radio). And yet it has the potential for greatness.

I saw that greatness demonstrated by ham radio in the response to the devastation brought to Western North Carolina and Eastern Tennessee by Hurricane Helene. Torrential rains and high winds wiped out infrastructure – roads, bridges, dwellings, businesses, power lines, cell towers – isolating people and putting them in peril . . . and cutting off the affected areas off so thoroughly that people not far away had no idea how desperate conditions were. It was bad . . . really bad.

The morning after Helene ripped a hole in civilization in Eastern Tennessee and Western North Carolina, Dan Mark K2DMG dropped his callsign on the Mount Mitchell repeater (which is fortuitously located on the highest peak in the Eastern United States, giving it enormous reach) and asked if anyone needed help . . . and that began a saga that will likely be studied as an example of radio emergency response for years to come. For hours and then days, Dan – who had never before been a net control – passed health and welfare messages, summoned help for people, and much, much more. Others listened to Dan’s radio traffic and used it to direct help to those who needed it and to find roads that were open.

In the heart of the affected area, Thomas Witherspoon K4SWL (SWLing Post’s Maximum Leader) also used ham radio to summon help for others and provide community communications.

But these few words do very poor service to what really happened. So I would heartily suggest, recommend, even implore you to listen to the following videos and podcast.

Ham Radio Workbench Podcast:

https://www.hamradioworkbench.com/podcast/hrwb-221-thomas-witherspoon-k4swl-on-hurricane-helene-and-emergency-prep

Ham Radio Crash Course:

KM4ACK:

I think they will boost your appreciation of the potential of ham radio to do good. I know they inspired me.

Spread the radio love

SEANET 2024: Rekindling Ham Radio Fellowship in Sri Lanka

2 Replies

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

Tidbits of SEANET (South East Asia Amateur Radio Network)

by Michael (BD4AAQ)

On 3rd October 2024, the 48th SEANET Convention was finally convened in Negombo, Sri Lanka. The SEANET convention, a gathering of a group of amateur radio operators, was last held in Johor Bahru Malaysia, in 2019, just before the Covid-19 pandemic. The Sri Lanka conference was attended by only 25 people. Nevertheless, it was hailed as a triumph, as it was the first ever meeting of amateur radio operators for SEANET following the end of the pandemic and upon extensive discussions on WhatsApp groups.

SEANET in Sri Lanka

Tharanga, 4S6TMP, and other organisers, did a great job hosting the convention. Despite its modest size, the convention featured all the typical elements: presentations, discussions, dinners, a bonfire, a special event station (4S7SEA), and more. Above all, the organisers surprised the attendees with the first day cover of the event arranged by the Sri Lanka Post Service. The first day cover, with postage stamps containing photos of SEANET participants, were ready in the same morning when the photos were taken! Lightning speed!

First Day Cover featuring SEANET 2024

The low attendance of the convention was partially attributed to the altered schedule. It was originally scheduled for 19 – 22 September but had to be changed at short notice to 3 – 6 October due to Sri Lanka’s presidential election on 23 September. The altered timetable prevented many of the Seanetters who had signed up from attending as scheduled.

Highest Attendance in History

SEANET has seen much higher attendance amid excellent solar conditions. The 18th SEANET convention, held in Kuching, Malaysia in 1990, was attended by as many as 320 people! The 38th Convention took place in 2010 in Shanghai, China, with over 100 attendees.

SEANET Convention in Shanghai

The Origin of SEANET

SEANET, the South East Asia Amateur Radio Network, was established in 1964 and is operated on 20 metres (14.320 MHz plus or minus QRM). The objective of the net is to promote international understanding and fellowship among hams and to relay emergency, medical, urgent or priority traffic. The on-the-air meeting, which has taken place at 1200 UTC daily without fail during periods of good solar conditions, has strengthened unity and co-operation among hams around the world, especially those within the region. The net also provides hams with a facility for testing their equipment and propagation conditions on the 20 metres band. Over time, members then agreed to have yearly gatherings for eyeball encounters and exchanges, which is how SEANET conventions came to be.

Emergency Communications Network (from SEANET Website)

[Regarding the] value of the SEANET as an Emergency communications network…

There have been many a private Yacht in the Indian Ocean that had been helped via the SEANET and Amateur Radio. Once there was this small Tri-maran which had exhausted all its fuel, food and water and were drifting helpless. Radio Hams and SEANET alerted rescue services and succeeded in getting an Ocean liner to divert and drop off fuel, food and water.

There have been other impressive achievements to the credit of SEANET. There was the case of a young mother in Sri Lanka whose baby of a few days had a serious condition which could only be treated by a special drug not available locally. SEANET members looked in the likely places in Australia and Singapore but failed. They then contacted their friends in the U

.S.A. and succeeded in getting the drug flown out from California the baby was saved. There was also the case of the frantic father who could not be near at hand when his wife was delivery their first baby in a Singapore hospital, over a thousand miles away from his jungle location. He kept in touch via Ham radio and SEANET. The wife, in hospital, had friends from SEANET visit every day.

On another occasion, when disaster struck Darwin, Australia recently, wiping off all communications facilities, a member of the SEANET group living in Darwin set up his station and was one of the first to contact the National Authorities with news and requests. Another SEANET member in Sri Lanka was able to obtain details of the whereabouts and health etc. of his countrymen living in Darwin and so reassure their near and dear in Sri Lanka.

There was once also the team of Himalayan climbers who attacked Mt. Everest from a new direction and when success was first conveyed via Amateur Radio and SEANET.

My Involvement

In the early 2000s, I started to take note of SEANET. I occasionally heard other shortwave networks and net controls, but SEANET was one that was loud and clear and was almost always there at 14320 MHz at or shortly after 12:00 Zulu. Ah, the good old days! Net controls took turns and worked from countries including Thailand, the Philippines, Singapore, Malaysia, Japan and Australia. Among the net controls were Gary (VK8GW), Ben (VK6XC), Barry (VK6ADI), Kim (VK6UO), Roy (DU9/G4UNL) and Ray (HS0ZDZ).

In Shanghai, I would check in to the net soon after I got back from work. John (BD4AAV) would also join the net from time to time. In Taiwan, Tim (BV2A) was a frequenter of SEANET. He was very happy when he first learned that John and I were from mainland China. One day he recommended that we QRY to a different frequency and there we three chatted like old friends for a very long time. Next we exchanged QSL cards. Tim was the first person to be issued a ham radio license since the KMT government moved from the mainland to Taiwan. He passed away in 2006.

QSL card from Tim, with the enclosed note stating that due to propagation issues he was unable to work Shanghai stations via SEANET at 14320 MHz lately

Dr KN Singh

If we talk about SEANET, there is one person we must also talk about. Dr Singh, a Malaysian Indian. SEANET conventions have developed and now have survived the pandemic in large part thanks to his efforts. He has many roles: doctor, hospital owner, philanthropist, Sikh, and last but not least, ham radio operator (9M2KN). He himself has hosted a number of SEANET conventions in Malaysia and has dedicated to the development of SEANET and ham radio in general. Although SEANET is a loose organisation with no permanent secretariat and each host country decides for itself how to organise a convention, Dr Singh’s charisma, leadership and coordination capabilities have been essential and have greatly encouraged and inspired the organisers. We should meet regularly before we grow too old to move and we should bring in new, younger members to the big family, he said, the ham spirit and the camaraderie must be nurtured.

From left to right: Ramesh VU2LU, Dr Singh 9M2KN, Jaliya 4S7JL, Tharanga 4S6TMP and Aruna SWL at SEANET 2024

Hans from Germany

Hans (DF5UG) is a veteran Seanetter with very extensive ham radio experiences. He has been to many countries and operated under probably the most callsigns. He was an EC member of IARU. He enjoys setting up antennas and amateur stations on the spot wherever he goes.

Hans, third from left, at the 38th SEANET Convention in Shanghai, with Michael BD4AAQ, second from right, and other attendees

The Legendary Fred

Fred (K3ZO) was a legend. He was an enthusiastic amateur radio operator and actively participated in amateur radio contests. Fred was well-known and widely respected around the globe. He had worked many stations in China as well. Earlier in his career, he was a US Information Officer. In 1974, he was kidnapped by a guerrilla group in Córdoba, Argentina and critically shot. As he was an amateur radio operator and owned a large amount of radio equipment, he was suspected of being a CIA agent. Upon a behind-the-scenes offensive in Washington and with US Secretary of State Henry Kissinger categorically denying spy speculations, he was released. He later stated in a message: “Amateur Radio is a wonderful hobby but it can be dangerous because people misinterpret what it is. I myself was kidnapped and shot in Argentina, but fortunately I have lived to tell about it.”

Fred also attended the 38th SEANET Convention in China. He became a Silent Key in 2023.

Fred, middle, in Shanghai

SEANET 2025 in India

Worth special mentioning are Turid and Mimis who are 82 and 91 years old now. The couple is originally from Yugoslavia (Serbia) (Turid was the Yugoslavian Ambassador to Germany in the 1970’s). They have now settled with their daughter in Australia. They attended many SEANET events and are great contributors to SEANET. Just a few days ago, they wrote to Dr. Singh asking when and where the next convention will be held.

Gladly, Ramesh (VU2LU) has taken the next slot for SEANET. We expect it to be a big event like what we have had in old times. The dedicated website for SEANET events is https://seanetasia.net. So, stay tuned for more information for the next SEANET Convention. 73!

Spread the radio love

Post-Helene Update and the Importance of Radio After a Natural Disaster

29 Replies

No matter where you live in the world, everyone should have a battery-powered or self-powered (hand-crank) portable radio in their home.

Recently, the pace of articles here on the SWLing Post has slowed down. That’s because I live in Swannanoa, North Carolina—a town that was particularly hard-hit by Hurricane/Tropical Storm Helene, which brought unprecedented rainfall and caused widespread destruction.

As I’ve mentioned in a previous post, I’ve been chronicling my experiences on my ham radio blog, QRPer.com. I’ve also been sharing regular audio updates with supporters on Patreon.

In short, our rural mountain community was completely cut off for several days. Our bridge washed out, and a critical section of road crumbled daily.

At one point, two families had to be helicopter-evacuated for medical reasons, and less than a week after the storm, the Sheriff’s department came door-to-door recommending evacuation.

Our amazing community pulled together: we cleared our road of hundreds of downed trees and made sure everyone had food, water, and supplies. We took care of each other.

Now, things have improved dramatically. After two and a half weeks without power, we’ve been reconnected to the grid. The Kentucky Department of Transportation repaired our road, making it accessible to regular vehicles again. On Tuesday, an arborist crew finally made it up the mountain to remove fallen trees from houses.

Although things are starting to feel more normal at home, the impact on Swannanoa, Asheville, and surrounding areas has been profound. Entire neighborhoods are gone, numerous businesses have closed, and several grocery stores were severely damaged.

The Communications Void

The National Guard helped us for a full day at our home. Thank you 5th Battalion 113 Field Artillery!

It’s often said that modern communications infrastructure fails us after a disaster.

I can confirm, first hand, that this is true.

The mobile phone network went offline during the storm, leaving us without service for days. Even now, three weeks after the storm, mobile phone service remains unreliable. Calls drop every few minutes.

Mobile data services at home are still down at time of posting (October 18, 2024). Internet services like cable, fiber, and DSL are mostly still out across the county. Only those with satellite internet have a connection—I’m fortunate to be one of them. Our cell tower still only supports basic voice calls and text messaging, without data or media attachments.

Radio to the Rescue

As many of you know, I’m not just a radio listener, but also a licensed amateur radio operator, and both of these hobbies became essential post-Helene.

As highlighted in an article by WIRED, amateur radio proved to be our lifeline for communication when everything else failed.

Using the local repeater (N2GE on Mount Mitchell), I was able to pass wellness checks, coordinate helicopter evacuations, and arrange supply drops for our community. I handed out a few handy talkies to unlicensed neighbors so we could stay in touch.

My wife and daughter, who are also hams, helped tremendously. While I was out with a chainsaw, clearing driveways, they acted as net control operators on our community’s simplex frequency (147.555 MHz), passing critical messages.

For that first week especially, amateur radio truly was our community’s connection to the outside world.

AM/FM Radio: A Lifesaver

Fortunately, our local TV station remained online after the storm, but few people could access it. Many people rely on cable or internet to watch TV, and in areas like ours, the digital transition over a decade ago left many without the ability to pick up over-the-air signals.

In contrast, FM and AM radio became the most reliable sources of information. Here in Buncombe County, public information and news were broadcast on 99.9 MHz (FM) and 570 kHz (AM). Both stations stayed online throughout the disaster, and the information they provided reached a vast audience. Check out this feature from CBS Evening News:

In Henderson County, the local AM station WTZQ stepped up as well. They did incredible work serving their communities post-Helene, as highlighted in a report by Queen City News:

Information Lifeline

As a presenter in the above story pointed out, everyone should have a battery-powered (or self-powered) AM/FM/Weather radio in their home.

After a disaster, you’ll rely on that radio for essential updates like where to find clean water, how to apply for FEMA assistance, what businesses are open, and when services will be restored.

Even three weeks after the storm, much of the Asheville area is still without water, so radios remain vital for getting updates.

Here at SWLing Post HQ, I shared my extra portable radios with neighbors who needed them. I used my CC Skywave SSB 2 in the kitchen window to tune into local news on 99.9 MHz and 570 kHz. I also relied on my XHDATA D-109 and CC Radio 3—they became our constant companions for information.

Many of you here on the SWLing Post are already radio enthusiasts, so no doubt I’m preaching to the choir. But let this serve as a reminder to stock up on alkaline batteries and check your radios regularily to make sure they’re fully functional. Keep spares on hand so you can lend them to neighbors if needed—they’ll never forget your generosity.

And don’t assume your area is safe from natural disasters. Western North Carolina was considered one of the safest regions in the country for weather, yet we were hit by one of the most devastating storms in state history.

Stay prepared. Don’t become complacent.

Thank You!

Over the past few weeks, many of you have reached out with kind words and support, and I can’t thank you enough!

As of this morning, I have 310 messages in my inbox.

I’ve been too busy to reply to emails and comments—though I’ve read each one—but I truly appreciate your patience as I try to catch up. My days have been consumed by helping neighbors and getting our own life back in order. It’s been exhausting but incredibly rewarding, and we still have months of work ahead of us.

Thank you also to the contributors who have kept the SWLing Post running during my absence, and a special shout-out to my friend Vince (VE6LK), who has taken on a huge role in keeping QRPer.com updated.

Again, I’ve been posting updates on QRPer.com and sharing more informal audio updates on Patreon.

Thank you so much for your support and understanding—and, again, keep those radios ready. You never know when they’ll become your primary source of information!

Best & 73,
Thomas (K4SWL)

Spread the radio love

Radioddity QT80 10m Radio

6 Replies

Guest Review by Robert Gulley K4PKM

The Radioddity QT80 is a very interesting addition to the Radioddity line of CB and Amateur radios. It cleverly walks a line between being a CB (channelized) radio, and a channelized/VFO capable amateur radio.

You are likely to have heard of this radio already, as there are a number of video and written reviews out there for the QT80, with most all of them praising the radio’s features and capabilities. For those who have not heard about the radio, I list the basic information below, and then talk about my impressions of the rig.

What’s in the box?
1 x QT80 10 Meter Radio
1 x Detachable Microphone
1 x Install Bracket
1 x Power Cable
1 x PC003 Programming Cable
1 x Spare Fuse (15A, 250V)
2 x Adhesive Case Protectors
4 x Adjusting Screws
4 x Screws
4 x Pads

Functions & Features
– 7-color screen display and backlight dimming
– FM, AM, USB, LSB, CW (need DIY work), PA modes
– SSB TX audio bandwidth control
– Frequency Tuning Steps: 10Hz, 100Hz, 1KHz, 5KHz, 10KHz, 100KHz, 1MHz
– ± 500Hz, 5KHz Clarifier (R/T/R+T selectable)
– Flexible menu functions and PC programming software
– RX and TX NRC Noise Reduction
– SQ, ASQ Function (FM and AM mode)
– RF GAIN Adjustment
– RF PWR Adjustment
– VFO / BAND / Memory Channel Modes
– Repeater Shift / Offset Frequency Function
– CTCSS/DCS with RX/TX Split functions
– SCAN Function
– CTCSS/DCS scan
– NB/ANL Function
– DW DUAL-WATCH Function
– SWR, S/RF meter Function
– TOT function
– HI-CUT Function
– EMG CALL
– SWR Protection
– Power Supply Voltage Protection
– Key-Lock Function
– DTMF Function
– BEEP Prompt
– Enhanced VOX Function (VOX.SPK can support digital mode operation)
– ECHO Function
– Programmable RB Function
– AM TX NPC
– User Defined (PF) key on microphone
– Audio path select 31.+10KHz Function

80W High Power: Experience clearer and stronger signals in challenging conditions with our 80W high-power radio. Perfect for amateur radio enthusiasts and professional operators, it guarantees reliable long-distance communication in any environment. FCC ID: T4K-AT6666PRO

Versatile Communication Modes: Seamlessly switch between FM, AM, SSB (USB, LSB), CW, and PA modes to adapt to various communication needs, from casual use to professional applications, catering to various communication scenarios.

Advanced Noise Reduction: Customize your listening experience with adjustable TX & RX noise reduction. Enjoy crystal-clear audio with minimized background noise and enhanced voice clarity, ensuring smooth and intelligible transmissions every time.

ASQ Function: The Automatic Squelch Control (ASQ) function intelligently filters out unwanted noise and static, providing a cleaner and more enjoyable listening experience. Say goodbye to constant manual adjustments and enjoy hassle-free communication.

7-Color LCD Display: Personalize your interface with a vibrant 7-color LCD display that complements any environment. Choose your preferred color for optimal visibility and a modern touch, enhancing your communication setup.

CTCSS/DCS: Use CTCSS/DCS codes to prevent interference and enhance privacy during group communications, ensuring clear and secure conversations.

Precision Frequency Tuning: Tune precisely with 7 Frequency Tuning Step options (10Hz/100Hz/1KHz/5KHz/10KHz/100KHz/1MHz), enabling accurate adjustments for clear communication.

___________________________________________________________________________

Data modes using DIY interface using the built-in VOX system

What you will need for QT80 – There are not many parts needed to get our own data-cable prepared.

– For the connection to the Radioddity QT80 you will need a 6-pin GX16-A6P plug, often called “aviation plug”.
– For the connection to your PC, you will either need a shielded stereo audio-cable with 3.5mm TRS plugs on both ends or two shielded open end stereo audio cables with 3.5mm TRS plug.
– If your PC does not have a built-in sound-card you will also need a USB soundcard with 3.5mm TRS sockets for MIC-in and Audio-out.

Full instructions may be found here:

https://www.radioddity.com/blogs/all/qt60-pro-qt80-data-mode-operation-guide?_kx=kFwIrsBfpgRCg9VuXhVWtqVpfz_NH8taLFTR4MEj-tU.HYtn7C

__________________________________________________________________________

I have included above some recently released information about how to use the radio for TX and RX with digital modes such as FT8/FT4 and SSTV, PSK etc.

While not indicated as such on the Radioddity website, the radio is capable of going down to 15 meters with a slight modification, demonstrated by some of the YouTube videos, which also includes the 11- and 13-meter bands.

Internal main PC board and large speaker

Additionally, Radioddity offers a Model CBL-561 15-30mHz vertical antenna option which can be attached to a mobile mount by way of its PL-259 connector. My sample copy of the antenna is extremely sturdy, and has an adjustable whip section for matching the chosen band.

My Impressions

The radio is well-built, solid, and has a heavy heatsink for handling the 80-watt output power, as there is no built-in fan. There are a number of nice features in the radio, including multiple color screen options, VFO tuning and scanning features down to 1 kHz, and very usable noise reduction and clarifier options. There is also a PA function which could come in very handy for emergency response situations.

The speaker is quite capable of being heard even with loud road noise, but due to the speaker placement on the bottom of the radio, where you have to mount the radio in your particular setting might determine if you need an external speaker.

The audio quality is quite good as I listened around to stations on 10m USB and 11m CB, as well as shortwave signals.

The noise reduction feature is designed to filter out unwanted noise on receive of course, but is also designed to work on the TX side of things to help with voice clarity. While the primary goal is clarity, if possible, I would recommend testing the TX side of things with someone who is familiar with your voice so you can adjust the noise reduction levels more accurately.

There is a USB connection which allows for firmware upgrades, programming capabilities, and, with some DIY effort, TX for Digital modes.

VFO Tuning vs. Channel Hopping

The QT80 offers both a channelized scan and tuning feature, as well as a scan and VFO option. Scanning/tuning of channels is as you would expect, allowing you to scan through 40 programmed channels, or 99 memory channels.

Scanning using the VFO method allows you to scan in various steps of 10 kHz or above. It should be noted that to tune to a level of 10 or 100 Hz accuracy, this must be adjusted by pressing the tuning dial in, which then allows you to select these tuning steps. For all automatic and manual tuning of frequencies using the tuning dial, the smallest step is 1 kHz. That can be a little confusing for those who are used to free turning VFOs on desktop/portable receivers.

As the tuning dial/channel switch (the big dial on the right-hand side of the unit) is designed primarily for channel selection and incremental tuning, there is both muting and an audible click as the dial is turned.

As the radio is clearly designed for mobile-style operation, the memory channels can easily be used to store 10-meter repeater stations (along with the necessary offsets), CB channels, as well as storing simplex frequencies to quickly tune in desired frequencies for scheds with other amateur radio operators.

The freely available programming software allows for easy programming of memories and channels, as well as controlling most all of the radio’s functions.

As you can see in the image below, the microphone has up and down buttons for tuning, as well as a PF button which can be assigned for specific programmed functions. The mic does not have a keypad, a nice, but not necessary function. As an aside, I have not seen any data as to what microphones might be interchangeable with the stock mic, so I would certainly do extensive research before trying a keypad-style mic with the radio.

Receiving California QSO Party signals clearly

Pros and Cons

Pros

Advanced features such as noise reduction and receive clarifier
A reasonable number of memories which don’t get ridiculous in size like some radios (i.e. 1000 memories!)
Simplified front end with menu options (see also Cons)
Feature-Rich radio beyond many similar mobile radios (see Cons below)
Multiple color options for the screen to enhance viewing in different lighting conditions
Large heatsink
Capability to store 10m repeater stations in memory with offset info
Great audio
Ability to work digital modes using the built-in VOX capabilities with DIY solution, no separate sound interface needed
CW TX possible with DIY solution shown on website
Free programming software
Standard antenna connections giving many antenna/tuner options

Cons

Bottom-mounted speaker (common, but not good if mounted near floor or in compartment) but external speaker port available
Non-removeable front-end, useful for more localized placement/ease of operation in vehicle or tight spaces
Many special functions require menu options which make mobile operation more difficult or dangerous when driving
Fairly steep learning curve to take advantage of all the features (see Pros above)

Conclusions

I believe most folks will be very pleased with the advanced capabilities of this rig. There is a bit of a learning curve for those who may not have used this style of radio before, but the time spent learning its features so as to make use of all these features will be well rewarded.

The radio has excellent audio, a clear display, many adjustments to make the radio function as desired, and has expansive capabilities to broaden its appeal. 73, Robert K4PKM

Radioddity Link

Amazon Link

Spread the radio love

Famous Collins Transceiver in Apocalypse Now

11 Replies

by Dan Robinson

We have seen so many great receivers and other equipment appear in movies, it’s surprising that this one may have slipped by our Radios in Movies radar.

In Apocalypse Now, the classic 1979 epic war film produced and directed by Francis Ford Coppola, Captain Willard (Martin Sheen) is briefed in a hotel room in Saigon about Colonel Kurtz (played by Marlon Brando), the renegade Special Forces officer who is accused of murder and presumed insane. The scene includes Harrison Ford (by the time the movie came he had become a big star with Star Wars) who tells Sheen that Kurtz is to be “terminated”.

But as we’re reminded in a post on the Collins Collectors Facebook page, a famous radio is sitting on a file cabinet in this scene — identified in the collector group as a KWM-2A.

It’s another reminder of how many great examples of amateur radio and other equipment have played roles in great movies!

Spread the radio love

Radio Waves: Who Will Pay, Ham Radio Culture, OTH Support, CarnationFM, Night of Nights, and 100 Years of Radio

5 Replies

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 Richard Cuff, Dennis Dura,
David Korchin, Roger Fitzharris, David Iurescia, and NT for the following tips:

In 1924, a magazine ran a contest: “Who is to pay for broadcasting and how?” A century later, we’re still asking the same question (NiemanLab)

Radio Broadcast received close to a thousand entries to its contest — but ultimately rejected them all.

After yet another day reading about audio industry layoffs and show cancellations, or listening to podcasts about layoffs and show cancellations, I sometimes wonder, “With all this great audio being given away for free, who did we think was supposed to pay for it all?”

I find some consolation in the fact that that question is more than a century old. In the spring of 1924, Radio Broadcast posed it in a contest called “Who is to Pay for Broadcasting and How?”The monthly trade magazine offered a prize of $500 (more than $9,000 in today’s dollars) for “a workable plan which shall take into account the problems in present radio broadcasting and propose a practical solution.”

The need for such a contest more than 100 years ago is revealing enough, but the reaction of the judges to the prize-winning plan turned out to be even more so — and it says a lot about why business models for audio production and broadcast remain a struggle. [Continue reading…]

The Rich History of Ham Radio Culture (The MIT Press Reader)

Drawing on a wealth of personal accounts found in magazines, newsletters, and trade journals, historian Kristen Haring provides an inside look at ham radio culture and its impact on hobbyists’ lives.

Every night thousands of men retreat to radio stations elaborately outfitted in suburban basements or tucked into closets of city apartments to talk to local friends or to strangers on the other side of the world. They communicate by speaking into a microphone, tapping out Morse code on a telegraph key, or typing at the keyboard of a teletypewriter. In the Internet age, instantaneous, long-distance, person-to-person communication seems ordinary. But amateur radio operators have been completing such contacts since the 1910s. The hobbyists often called “hams” initially turned to radio for technical challenges and thrills. As the original form of wireless technology became more reliable and commonplace in the 1930s, ham radio continued as a leisure activity. Hams formed a community through the same general practices of other social groups. They set conditions for membership, established rules of conduct, taught values, and developed a specialized vocabulary known only to insiders. What made hams’ culture different was its basis in technology. In her book “Ham Radio’s Technical Culture,” excerpted below, historian of science and technology Kristen Haring draws on a wealth of personal accounts found in radio magazines and newsletters and from technical manuals, trade journals, and government documents to illustrate how ham radio culture rippled through hobbyists’ lives. [Continue reading…]

CarnationFM: A Decentralized Radio Playing Songs With Encrypted Hidden Messages (Coin Desk)

CarnationFM emerged from EthBerlin 2024 and won the award for Best Social Impact.

Berlin, Germany: A music-focused radio FM which allows songs to act as a transport vessel for hidden messages has emerged from EthBerlin 2024. CarnationFM was created by five hackers and a mentor as a defensive, decentralized and encrypted communication tool enabling private messaging that safeguards anonymity.

The project, which won the award for the Best Social Impact at EthBerlin 2024, is focused on creating real world use cases factoring in privacy in the aftermath of the Alexey Perstev verdict. Alexey Perstev, one of the co-founders of Tornado Cash, was sentenced to 64 months in prison in May.

The verdict rattled the decentralized community because it suggested that a coder could be held responsible for everything that happens using that code. Perstev was found guilty because his open-source mixer Tornado cash allowed North Korea’s infamous Lazarus group to launder millions in crypto. [Continue reading…]

Nation’s last Morse code station comes back to life on annual ‘Night of Nights’ in Point Reyes (The Mercury News)

KPH, established in Point Reyes and Bolinas in 1913, will exchange messages with Morse code enthusiasts around the world

On July 12, 1999, the nation’s final message in Morse code was sent out to sea from a remote Bay Area radio station. The end of an era, the room’s mood was mournful. Grizzled old men wept.

“We wish you fair winds and following seas,” it said, offering a seafarers’ traditional farewell in a staccato stream of dots and dashes. And then the station went silent.

But every July 12, the golden age of maritime radio comes back to life. [Continue reading…]

Navy researchers ask Envisioneering to support over-the-horizon radar that relies on HF radio signals (Military Aerospace Electronics)

Over-the-horizon radar typically uses HF radio signals at frequencies between 2 and 30 MHz to reach beyond the horizon in open-ocean areas.

WASHINGTON – U.S. Navy researchers needed to help develop a new prototype High Frequency (HF) over the horizon (OTH) radar system. They found a solution from Envisioneering Inc. in Alexandria, Va.

Officials of the Naval Research Laboratory (NRL) in Washington announced a $45.4 million contract to Envisioneering Inc. on Monday for design, development and integration of a mobile over-the-horizon radar (MOTHR).

Over-the-horizon radar typically uses HF radio signals at frequencies between 2 and 30 MHz to reach beyond the horizon in open-ocean areas. HF signals bounce off the ionosphere to achieve long distances and operate beyond the curvature of the Earth.

Envisioneering will work alongside the NRL research team to support key areas such as refinement of system requirements; system and subsystem design; mechanical analysis; specifying and procuring long-lead items; integration; testing; and signal processing. [Continue reading…]

100 Years of 100 Things: Radio (WNYC)

Continuing our centennial series 100 Years of 100 Things, Matthew Barton, curator of recorded sound at the Library of Congress, walks us through the history of radio.

100 Years of 100 Things is part of WNYC’s centennial celebration. Each week, we’ll take listeners through a century’s worth of history of things that shape our politics, our lives and our world. Topics will include everything from immigration policy to political conventions, American capitalism to American socialism, the Jersey Shore to the Catskills, baseball to ice cream.

Click hee to listen via WNYC.

Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

Spread the radio love

Radio Waves: BBC Emergency Service for Gaza, FCC Bolstering Amateur Radio, and Crowdsourcing the Ionosphere

2 Replies

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 Andrea Borgnino, Paul, and Dennis Dura for the following tips:

BBC World Service announces Emergency Radio Service for Gaza (BBC Media Centre)

It will provide listeners in Gaza with the latest information and developments as well as safety advice on where to access shelter, food and water supplies

BBC News Arabic has today (1 November) announced an Emergency Radio Service for Gaza in response to the conflict in the region.

The emergency service – Gaza Daily – will broadcast vital news daily to the people of Gaza during this time of urgent need.

It will provide listeners in Gaza with the latest information and developments as well as safety advice on where to access shelter, food and water supplies.

Produced in Cairo and London and broadcast on medium wave, the service will initially run one programme a day at 1500 GMT from Friday 3 November. A second daily update will be broadcast at 0500 GMT from Friday 10 November.

The BBC World Service has a history of responding to emergency situations globally. Most recently, in May 2023 during the conflict in Sudan BBC News Arabic began an emergency radio service. In February 2022, the BBC News Ukraine service began extended TV bulletins following the invasion of the country. The BBC also previously launched a service for Gaza in 2014 following a summer of conflict.

Liliane Landor, Director, BBC World Service, says: “BBC News Arabic are extremely well-placed to offer this vital service for the people of Gaza at a time of greatest need. Their expertise and specialist knowledge of the region alongside the BBC’s reputation as the most trusted news provider, means we can reach civilians in Gaza with the information they need.”

RM3

Notes to editors: The Gaza service will be broadcast on MW 639kHz for morning and evening episodes.

FCC Wants to Bolster Amateur Radio (Radio World)

Commission will vote in November on plan to remove outdated technical restrictions

FCC Chairwoman Jessica Rosenworcel says the FCC plans to “incentivize innovation and experimentation in the amateur radio bands” by getting rid of outdated restrictions and providing licensees with the flexibility to use modern digital emissions.

The commission at its November meeting is expected to take action on a Report and Order that would eliminate the baud rate limitation and establish a bandwidth limitation in the amateur radio bands below 29.7 MHz.

The order being circulated for tentative consideration by the commission would remove the baud rate limitation — the rate at which the carrier waveform amplitude, frequency and/or phase is varied to transmit information — for data emissions in the amateur radio bands, the FCC says. The current baud rate limits were adopted in 1980.

The order would implement a 2.8 kilohertz bandwidth limitation in place of the baud rate in amateur radio bands. The 2.8 kHz limitation is consistent with the commission’s treatment of other wireless radio services, the FCC says.

The current rules limit the baud rate for high-frequency amateur radioteletype/data transmissions to 300 baud for frequencies below 28 MHz (except in the 60-meter band), and 1200 baud in the 10 meter (28-29.7 MHZ) band. [Continue reading…]

Ham Radios Crowdsourced Ionospheric Science During Eclipse (EOS.org)

Amateur radio operators who study space physics and the upper atmosphere probed the ionosphere’s response to the 2023 annular solar eclipse using shortwave transmissions.

On 14 October, millions of people in North, Central, and South America peered through safety glasses and other viewing aids at the partially obscured Sun. Simultaneously, thousands of folks experienced the annular solar eclipse in a different way: through transmissions sent and received over amateur radios.

Before, during, and after the eclipse, ham radio operators pinged signals off the ionosphere and connected to people hundreds or thousands of kilometers away. The experiment, part of the Ham Radio Science Citizen Investigation (HamSCI), is gathering hundreds of thousands of those contacts to investigate how the ionosphere responds to the temporary loss of sunlight during an eclipse. [Continue reading…]