Monthly Archives: November 2022

More Wrenaissance on shortwave

Hi all SWLing post community, Fastradioburst23 here letting you know of our next episode of renaissance music radio across the shortwaves this weekend thanks to WRMI.

This Sunday 6th November 2022 from 2300 utc on 9395 kHz there will be another transmission of WREN and in keeping with last week’s show they’ll be much more modal music and to quote Wikipedia, more “Harmony that places a greater concern on the smooth flow of the music and its progression of chords.” Tune in and enjoy another journey way back into time.

Most of the Imaginary Stations shows that have been broadcast are now archived here.

STOP PRESS • Last night’s show now archived online here.

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Reception Reports Requested: “One-Off” DRM Broadcast From Woofferton To India Today

Many thanks to SWLing Post contributor, Mangosman, who shares the following announcement from the DRM Consortium:

Encompass Plans A One-off Broadcast From Uk To India On Nov 4th

Encompass Digital Media will be running a one-off transmission from its site in Woofferton, UK, on Friday 4th of November. This electronic music broadcast will target the whole of India, around 5,000 miles (or about 8,000 kilometres) as the crow flies to the centre of the country. This might be the longest distance Encompass has covered with its DRM transmissions.

Before the actual broadcast, several tests were run using different frequencies, antennas and power combinations. The final test on November 2nd to confirm final set-up was a great success as the audio could be recorded from a KiwiSDR online receiver located in New Delhi. The SNR of 20dB was measured in New Delhi and 23.9dB in Bangalore, which proves the power of shortwave radio and how DRM and its excellent sound, even in shortwave, can travel such long distances. The audio was also decoded in Bangkok, and a listener report came even from Canada!

This experimental broadcast promoting the music of C. M. Obrecht is scheduled for tomorrow [today Nov 4 at time of publishing], 19:00 – 20:00 UTC, on 11710kHz. It will use xHE-AAC codec with DRM Mode B, transmitting at 125kW on a 78* bearing from Woofferton. The audio will be accompanied by ancillary data including a slideshow image of the album cover art.

Although the transmission time will mean it will be quite late in India, Encompass is interested in receiving any reception reports from within the country, particularly from anybody using a car radio. Please send reception reports to Steve Palmer at: [email protected] (This is also the address to use for further information about Encompass’ DRM projects and services).

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Radio Waves: QSL Book, Ham Radio in Taiwan Civil Defense, Radio Silence in Venezuela, and ARRL Handbook 100th Edition

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!


New Book: QSL? (Do You Confirm Receipt of My Transmission?) (Standards Manual)

A collection of over 150 “QSL cards”, QSL? chronicles a moment in time before the Internet age, when global communication was thriving via amateur, or “ham”, radio operators.

Discovered by designer Roger Bova, the distinctly designed cards follow the international correspondence of one ham, station W2RP, who turned out to be the longest-standing licensed operator in The United States.

Click here to read more.

If China declares war, these ham radio enthusiasts could be crucial (LA Times)

TAIPEI, Taiwan — On Tuesday nights, BX2AN sits near the Xindian River, motionless but for his thumb and middle finger, rhythmically tapping against two small metal paddles. They emit a sound each time his hand makes contact — from the right, a dit, or dot; from the left, a dah, or dash, the building blocks of the Morse code alphabet.
“Is anyone there?” he taps.

The replies come back in fits and starts: from Japan, then Greece, then Bulgaria. Each time, BX2AN, as he is known on the radio waves, jots down a series of numbers and letters: call signs, names, dates, locations. Then he adjusts a black round knob on his transceiver box, its screens glowing yellow in the dark.

There can be no doubt that this is his setup. That unique call sign is stamped across the front of his black radio set, scrawled in faded Sharpie on his travel mug and engraved in a plaque on his car dashboard. On the edge of his notepad, he’s absent-mindedly doodled it again, BX2AN.

In the corporeal world he is Lee Jiann-shing, a 71-year-old retired bakery owner, husband, father of five, grandfather of eight and a ham radio enthusiast for 30 years. Every week, he is the first to arrive at this regular meeting for Taipei’s amateur radio hobbyists.

[…]The self-governing island, about 100 miles east of China, is weighing wartime scenarios in the face of growing military aggression from its vastly more powerful neighbor. If cell towers are down and internet cables have been cut, the ability of shortwave radio frequencies to transmit long-distance messages could become crucial for civilians and officials alike. [Continue reading…]

Radio silence grows in Venezuela as government shutters dozens of stations (Reuters)

CARACAS, Oct 26 (Reuters) – In July officials from Venezuela’s telecommunications regulator entered the Moda 105.1 FM radio station, in the northwestern state of Cojedes, accompanied by members of the national guard and demanding to see all the station’s licensing.

Hours later they stopped it broadcasting – making Moda one of at least 50 stations in Venezuela’s interior which have been closed so far this year by the Conatel regulator because it says they lack valid licenses.

The accelerated closures are a new step in efforts by the government of President Nicolas Maduro to control information and give state media hegemony over communications, journalist guilds and non-governmental organizations say, continuing a policy begun under his predecessor Hugo Chavez. [Continue reading…]

The ARRL Handbook for Radio Communications100th Edition (ARRL)

We have arrived at a milestone. The 100th edition of The ARRL Handbook for Radio Communications is here: Handbook 100. How do you celebrate the most widely used one-stop reference and guide to radio technology principles and practices? By continuing to fill the pages of another edition with the progress and achievement of radio amateurs. Handbook 100 is written for everyone with a desire to advance the pursuit of wireless technology. Here is your guide to radio experimentation, discovery, and innovation.

What’s Inside

Each chapter is filled with the most up-to-date knowledge representative of the wide and ever-expanding range of interests among radio amateurs. There are practical, hands-on projects for all skill levels — from simple accessories and small power supplies to legal-limit amplifiers and high-gain antennas.

Key topics:

  • Radio electronics theory and principles
  • Circuit design and equipment
  • Signal transmission and propagation
  • Digital modulation and protocols
  • Antennas and transmission lines
  • Construction practices

Updated with new projects and content, including:

  • An all-new chapter on radio propagation covering a wide range of bands and modes
  • New and updated sections on electronic circuit simulation
  • New cavity filter and high-power HF filter projects
  • New coverage on digital protocols and modes
  • New material on RFI from low-voltage lighting and other sources
  • Revised sections covering new RF exposure limits
  • New content on portable station equipment, antennas, power, and assembly
  • New material on ferrite uses and types
  • New section on how to use portable SDR to locate sources of RFI …and more.

Click here for more information and to place an order.


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