Radio Waves: Tales Making Waves within the World of Radio
Welcome to the SWLing Publish’s Radio Waves, a group of hyperlinks to attention-grabbing tales making waves on the earth of radio. Get pleasure from!
Many due to SWLing Publish contributors Dennis Dura, Kostas, Pete Eaton, Wealthy Cuff, and Balázs Kovács for the next ideas:
SV3ORA’s new YouTube Channel
Many due to Kostas (SV3ORA) who shares a hyperlink to his new YouTube channel which options a few of his radio initiatives together with details about the NR-1 Noise Blanker.
Click on right here to test it out on YouTube.
[Abstract] The evolution from conventional tube-based shortwave transmitters to trendy techniques with Provider Managed Modulation represents a major leap in broadcasting expertise. Whereas the previous tube transmitters laid the groundwork for world communication, trendy developments have enormously enhanced the effectivity, readability, and attain of broadcasts. Applied sciences like CCM modulation, directional curtain array antennnas and trendy digitally managed transmitters are pivotal in in the present day’s communication panorama, guaranteeing that broadcasters can ship high-quality audio content material throughout the digital divide and to targets extra reliably and effectively, particularly throughout huge distances. This sluggish shift in expertise not solely preserves the integrity of the transmitted message but additionally optimizes using power and bandwidth, setting the stage for additional improvements in world broadcasting, power conservation and sustainability.
Click on right here to learn the total article.
Please be aware: this text is behind a paywall and you have to a subscription to learn. We embrace a hyperlink to this text in Radio Waves due to its relevance in radio historical past.
In 1924, a radio receiver constructed for the battlefields of World Warfare I examined the concept that people weren’t alone within the photo voltaic system, heralding a century of searches for extraterrestrial life.
At sundown on a late summer time weekend in 1924, crowds flocked to curbside telescopes to behold the superior alien civilization they believed to be current on the floor of Mars.
“See the wonders of Mars!” an uptown sidewalk astronomer shouted in New York Metropolis on Saturday, Aug. 23. “Now could be your probability to view the snowcaps and the nice canals which are inflicting a lot discuss among the many scientists. You’ll by no means have such an opportunity once more in your lifetime.”
Throughout that weekend, Earth and Mars have been separated by simply 34 million miles, nearer than at some other level in a century. Though this orbital alignment, known as an opposition, happens each 26 months, this one was notably charming to audiences throughout continents and impressed a number of the first large-scale efforts to detect alien life. [Read this article at the NY Times…]
Many due to SWLing Publish contributor, Pete Eaton, who writes:
“A Homebrew Shortwave Receiver can’t get a lot less complicated than this:”
Pi-Pico RX – Breadboard Model
A few years in the past, I constructed a fundamental but succesful radio receiver utilizing a Pi Pico, and whereas I initially designed a customized PCB for it, this time I’m constructing an excellent less complicated and cheaper model that may be constructed on a breadboard utilizing (principally) through-hole elements.
I wished to construct a really minimal (however helpful) design that I may use as a platform for experiments, tweaks and upgrades.
If you’re within the unique design or wish to discover out extra in regards to the technical particulars you will discover all the information right here. Many of the technical particulars are the identical, so I’ll deal with the brand new options and enhancements right here. [Click here to continue reading…]
Transfer is in step with letting its Marianas shortwave transmitters go darkish
The U.S. Company for International Media has knowledgeable the Commonwealth of the Northern Mariana Islands’ Division of Public Lands that it’ll terminate its long-term lease on Aguiguan Level.
Aguiguan Level is residence to the Saipan portion of the Robert E. Kamosa Transmitting Station, which the company confirmed final week was being shuttered. The shortwave web site has been used because the mid-Nineteen Nineties to beam Voice of America and Radio Free Asia broadcasts throughout the Pacific.
In response to a report within the Saipan Tribune, Division of Public Lands Secretary Teresita Santos confirmed that USAGM had knowledgeable the division it could not search renewal of the lease, however no timeline for terminating the lease was offered. Santos was quoted as saying that after the lease is terminated, the division would problem a request for proposals for the location. [Continue reading…]
The Justice Division unsealed a felony criticism charging Hungarian nationwide Bence Horvath with violations of U.S. export controls concentrating on Russia, together with by conspiring with others to illegally export U.S.-origin radio communications expertise to Russian authorities finish customers with out a license. Horvath is charged by criticism with one rely of conspiring to violate the Export Management Reform Act of 2018 (ECRA). He was arrested on arrival at San Francisco Worldwide Airport in San Francisco, California, on Aug. 23.
“As alleged, the defendant tried to buy military-grade radios for Russian entities utilizing a multinational procurement chain to evade regulation enforcement,” mentioned Assistant Lawyer Common Matthew G. Olsen of the Justice Division’s Nationwide Safety Division. “The Justice Division stays dedicated to disrupting and holding accountable felony networks that proceed to gasoline Russian aggression overseas and threaten our collective safety.”
“Concentrating on illicit world procurement networks that function within the shadows to equip the Russian authorities is of the very best precedence to BIS,” mentioned Assistant Secretary for Export Enforcement Matthew S. Axelrod of the Commerce Division’s Bureau of Business and Safety (BIS). “As Horvath’s arrest demonstrates, it doesn’t matter the place on the earth you use – when the USA believes your conduct violates our export legal guidelines, we take motion.” [Continue reading…]
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