slow morse code nets radio

We often invite our community to write in and let us know about any interesting events. We got a great email from Mark who runs a slow morse code net every week! 

We will share his details in next week’s newsletter. Stay tuned.

Some of the younger folk in the office said, slow morse code? what is that? So we thought it was high time we created a blog on this very topic.

So, what is Morse code? It is a communication system developed in the early 1800s, that involves creating messages, where each letter of a word is sent as a sequence of dots and dashes. This system is transmitted via sound or visual signals, typically with the help of devices like telegraphs, lamps, or radios. Slow Morse code, often referred to as “QRSS” (which stands for “QR” for “to receive slower,” and “SS” for “to send slower”), is a variant of traditional Morse code designed for low-speed communication and radio enthusiasts. Here’s how it works, how to access it, and why people enjoy this hobby:

How Slow Morse Code Works

  1. Encoding: Slow Morse code uses the same fundamental principles as traditional Morse code. Letters, numbers, and symbols are represented by combinations of short signals (dots) and long signals (dashes).
  2. Speed Reduction: The primary difference is in the speed of transmission. While traditional Morse code can be relatively fast, slow Morse code is intentionally slowed down. Each character can be extended to several seconds, making it much more accessible for newcomers and hobbyists.
  3. Transmission: Slow Morse code is transmitted using radio waves or light signals. Radio enthusiasts often use specialized devices and software to encode and decode these signals.
  4. Decoding: The receiver uses a device, like the Tecsun Radios Australia SDR (Software-Defined Radio), to capture the radio signals and convert them into visual or audible Morse code.

Accessing Slow Morse Code

  1. Equipment: To access slow Morse code, you need a suitable radio receiver. Tecsun Radios Australia SDR is an example of a device that can be used for this purpose. It allows you to tune into specific frequency bands.
  2. Tuning In: With your SDR, you can select the frequency range where slow Morse code transmissions are taking place. Radio hobbyists often monitor certain bands allocated for amateur radio Morse code communication.
  3. Waterfall Display: The Tecsun Radios Australia SDR and similar devices often include a “waterfall display.” This display shows a visual representation of the spectrum over time, making it easier to identify and decode slow Morse code signals. Operators can visually follow the patterns of dots and dashes on the display.

Why People Enjoy Slow Morse Code as a Hobby

  1. Technical Challenge: Slow Morse code provides a technical challenge for enthusiasts. It requires understanding of radio equipment, propagation conditions, and signal decoding.
  2. Nostalgia: Many hobbyists are drawn to Morse code due to its historical significance in radio communication.
  3. Community: Slow Morse code has a dedicated community of enthusiasts who share information, tips, and participate in events Just like Mark’s local net we will share with you in next week’s Newsleter.
  4. Relaxation: The slow pace of Morse code can be calming for some people. It allows for a more relaxed and methodical approach to communication.
  5. Unique Skills: Learning Morse code is a unique skill, and many enjoy the sense of accomplishment that comes with mastering it.

Slow Morse code is a variant of Morse code that is enjoyed by radio enthusiasts. The slow pace, technical aspects, and sense of community make it an attractive hobby for those interested in both history and modern radio technology. The ability to watch the whole band segment on a waterfall display aids in decoding the signals, adding an extra layer of enjoyment for enthusiasts.

The night sky often looks incredible, but on the night of August 12, 2023, one Finnish DX (long-distance radio) enthusiast, Koe Kone, experienced an unexpected twist during the annual Perseids meteor shower. While gazing at the streaking meteors, Kone discovered a boost in German DAB (Digital Audio Broadcasting) signals, marking the first-ever documented instance of meteor-induced interference on VHF band III DAB signals.

Koe Kone, a dedicated DX hobbyist based in Turku, Finland, enjoys the challenge of seeking out distant broadcast signals. His YouTube channel showcases a treasure trove of recordings capturing broadcasts from across the Baltic Sea and beyond. However, it was during the meteor shower’s peak activity that Kone stumbled upon a radio phenomenon that had eluded detection until now.

The notion that atmospheric and celestial conditions can influence radio broadcasting is not a novel one. For decades, radio enthusiasts have observed the impact of meteor showers on radio signal propagation. Differences in the ionosphere between day and night have been known to affect the reach of AM signals, while temperature inversions in the troposphere can cause FM signals to ‘skip’ to distant markets.

As early as the 1930s, researchers recognised that meteor showers played a role in radio signal propagation. Enthusiasts and amateur radio operators have even used FM receivers to eavesdrop on meteor showers.

Kone’s groundbreaking discovery was made possible through his use of an Airspy Mini scanner and QIRX SDR software for signal reception. He paired these tools with a formidable 13-element VHF band III yagi antenna positioned at a lofty 48 meters above sea level. This setup allowed Kone to successfully receive and decode a signal emanating from a German multiplex operating in block 5C.

Intriguingly, Kone’s decoded stations led him to identify five potential transmission sources in Germany: Casekow, Pritzwalk, or Templin in Brandenburg; Röbel, Rostock, or Züssow in Mecklenburg–Vorpommern; and Garz on the picturesque island of Rügen, also situated in Mecklenburg–Vorpommern. Astonishingly, the closest of these sites is approximately 800 kilometers (nearly 500 miles) away from Kone’s reception site in southwestern Finland.

During the peak of his listening experience on August 12, Kone’s receiver displayed three adjacent DAB multiplexes on blocks 5B, 5C, and 5D. Although he couldn’t decode all the signals, he did capture brief bursts from blocks 5C and 5D in the early hours of August 11.

Sharing his discovery with the “DAB/DAB+ Digital & Online Radio” Facebook group, Kone reflected on his past successes in capturing Swedish DAB stations. However, the meteor shower recording was different. He noted, “This in the video was quite different, being a meteor scatter and lasted only a few seconds.”

 

Koe Kone’s discovery serves as a testament to the wonders that can be unveiled when technology, passion, and the mysteries of the cosmos converge. The meteor-induced boost to DAB signals not only adds a new layer of intrigue to the world of DX enthusiasts but also reminds us of the possibilities to discover. As we continue to explore the radio spectrum, who knows what other cosmic secrets may await discovery in the silent spaces between the stars?

In a world dominated by modern technology and instant communication, there exists a unique and passionate community of shortwave radio enthusiasts who find their thrill in tuning into aviation broadcasts. While it might seem like an esoteric hobby, listening to aviation broadcasts over shortwave radio has cultivated a cult following

Here are some of the reasons so many listeners follow the HF aircraft band.

Kind of like a global adventure!

Shortwave radio allows enthusiasts to embark on a global adventure from the comfort of their homes. Aviation broadcasts provide a portal into the skies, enabling listeners to eavesdrop on conversations between pilots and air traffic controllers from all corners of the world.

 The sense of adventure and the opportunity to virtually traverse continents is a compelling reason why shortwave radio enthusiasts are drawn to aviation broadcasts

 Shortwave radio provides real-time access to aviation communications. Enthusiasts can listen in on air traffic control exchanges, weather information, flight paths, and even emergency communications as they happen.

It is quite technical!!

Fine-tuning shortwave radios and antennas to receive clear aviation signals is a technical challenge that appeals to hobbyists. It requires skill and patience to optimise reception and achieve the best audio quality.

 The technical aspect of the hobby fosters a sense of accomplishment and expertise, further deepening the enthusiast’s connection to shortwave radio.

Amateurs listening in during an emergency have saved the day in the past, both in the air and by sea!!

 Shortwave radio is a reliable means of communication during emergencies. Aviation enthusiasts play a vital role in monitoring aviation frequencies during critical situations, potentially assisting authorities or providing essential information.

This sense of responsibility adds a noble dimension to the hobby, reinforcing the dedication of shortwave radio enthusiasts.

There is quite a community too!!

While shortwave radio listening can be a solitary activity, it also nurtures a strong sense of community. Enthusiasts connect through online forums, clubs, and social media groups, where they share their experiences, knowledge, and tips.

The sense of camaraderie among like-minded individuals contributes significantly to the cult following of this hobby.

For some, listening to aviation broadcasts on shortwave radio is a tradition passed down through generations. The nostalgic element, combined with the heritage of the hobby, creates a sense of continuity and connection to the past.

Listening to aviation broadcasts over shortwave radio may seem like a niche hobby, but it offers a world of adventure, technical challenges, and a close-knit community that has earned it a dedicated cult following. 

Vast areas of the world lack the necessary local VHF radio communication systems needed to provide reliable radio coverage between aircrews and air traffic controllers. The lack of VHF coverage within most of these areas is due to the very remote location of these regions, for example, much of the airspace over the Atlantic and Pacific oceans lacks VHF communications as it is impossible to install transmitters on a reliable platform within these regions. As a result,  a network of shortwave (HF) frequencies have been allocated to provide long range voice communications between aircrews and ATC facilities.

The allure lies in the ability to bridge the gap between the terrestrial and the celestial, allowing enthusiasts to soar through the skies without ever leaving their homes. So, whether you’re a seasoned shortwave radio enthusiast or a curious newcomer, consider giving aviation broadcasts a try – you might just find yourself captivated by the mesmerising world of shortwave radio and its passionate following.

Here at Tecsun Radios Australia we have the best range of radios to support your shortwave listening adventures, we even supply a comprehensive shortwave listening guide, written by owner and fellow enthusiast, Garry himself!!!

Curious about listening to Aviation broadcasts, here are some of our top radios for the job.

PL-880, PL-990x, H-501x, PL-330, PL-365, PL-368, PL-660, S-2000. Most receivers in the Tecsun Radios Australia range have the ability to receive single sideband (SSB) transmissions, and that is the mode used by aircraft on the HF bands. As you can see, even the most economical receiver (PL-365) is capable of listening to aircraft on the HF bands.