{"id":60482,"date":"2024-08-27T07:41:25","date_gmt":"2024-08-27T11:41:25","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=60482"},"modified":"2024-08-27T07:44:06","modified_gmt":"2024-08-27T11:44:06","slug":"radio-waves-sv3oras-channel-european-shortwave-advantages-early-radio-astronomy-pi-pico-sdr-and-charged-for-exporting-radio-gear-to-russian","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2024\/08\/radio-waves-sv3oras-channel-european-shortwave-advantages-early-radio-astronomy-pi-pico-sdr-and-charged-for-exporting-radio-gear-to-russian\/","title":{"rendered":"Radio Waves: SV3ORA’s Channel, European Shortwave Advantages, Early Radio Astronomy, Pi-Pico SDR, USAGM Cancels Lease for Saipan Site, and Charged for Exporting Radio Gear to Russian"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Radio Waves:\u00a0 Stories Making Waves in the World of Radio<\/h2>\n

Welcome to the\u00a0SWLing Post\u2019s<\/em> Radio Waves<\/em>, a collection of links to interesting stories making waves in the world of radio.\u00a0<\/strong>Enjoy!<\/strong><\/p>\n

Many thanks to SWLing Post<\/em> contributors Dennis Dura, Kostas, Pete Eaton, Rich Cuff, and Bal\u00e1zs Kov\u00e1cs for the following tips:<\/strong><\/p>\n

\n

SV3ORA’s new YouTube Channel<\/h2>\n

Many thanks to Kostas (SV3ORA) who shares a link to his new YouTube channel which features some of his radio projects including information about the NR-1 Noise Blanker.<\/p>\n

Click here to check it out on YouTube.\u00a0<\/a><\/p>\n

The Strategic Advantage of European-based Shortwave Stations (Nexus.org)<\/a><\/h2>\n

[Abstract] The evolution from traditional tube-based shortwave transmitters to modern systems with Carrier Controlled Modulation represents a significant leap in broadcasting technology. While the old tube transmitters laid the groundwork for global communication, modern advancements have greatly enhanced the efficiency, clarity, and reach of broadcasts. Technologies like CCM modulation, directional curtain array antennnas and modern digitally controlled transmitters are pivotal in today\u2019s communication landscape, ensuring that broadcasters can deliver high-quality audio content across the digital divide and to interested targets more reliably and efficiently, especially across vast distances. This slow shift in technology not only preserves the integrity of the transmitted message but also optimizes the use of energy and bandwidth, setting the stage for further innovations in global broadcasting, energy conservation and sustainability.<\/p>\n

Click here to read the full article.<\/a><\/p>\n

Scientists Seeking Life on Mars Heard a Signal That Hinted at the Future (NY Times)<\/a><\/h2>\n

Please note: this article is behind a paywall<\/strong> and you will need a subscription to read. We include a link to this article in Radio Waves because of its relevance in radio history.<\/em><\/p>\n

In 1924, a radio receiver built for the battlefields of World War I tested the idea that humans were not alone in the solar system, heralding a century of searches for extraterrestrial life.<\/p>\n

At sunset on a late summer weekend in 1924, crowds flocked to curbside telescopes to behold the advanced alien civilization they believed to be present on the surface of Mars.
\n\u201cSee the wonders of Mars!\u201d an uptown sidewalk astronomer shouted in New York City on Saturday, Aug. 23. \u201cNow is your chance to view the snowcaps and the great canals that are causing so much talk among the scientists. You\u2019ll never have such a chance again in your lifetime.\u201d<\/p>\n

During that weekend, Earth and Mars were separated by just 34 million miles, closer than at any other point in a century. Although this orbital alignment, called an opposition, occurs every 26 months, this one was particularly captivating to audiences across continents and inspired some of the first large-scale efforts to detect alien life. [Read this article at the NY Times…<\/a>]<\/p>\n

Pi-Pico Software Defined Radio<\/h1>\n

Many thanks to SWLing Post<\/em> contributor, Pete Eaton, who writes:<\/strong><\/p>\n

“A Homebrew Shortwave Receiver can not get much simpler than this:”<\/em><\/p>\n

Pi-Pico RX – Breadboard Version<\/a><\/h3>\n

A couple of years ago, I built a basic yet capable radio receiver using a Pi Pico, and while I originally designed a custom PCB for it, this time I\u2019m building an even simpler and cheaper version that can be built on a breadboard using (mostly) through-hole components.<\/p>\n

I wanted to build a very minimal (but useful) design that I could use as a platform for experiments, tweaks and upgrades.<\/p>\n

If you are interested in the original design or want to find out more about the technical details you can find all the info here. Most of the technical details are the same, so I will focus on the new features and improvements here. [Click here to continue reading…<\/a>]<\/p>\n