Many thanks to SWLing Post contributor, Adrian Korol, who shares the following announcement:
LRA 36 NEW TEST BROADCAST ON SATURDAY 18th
In full progress of the adjustment and improvement works in the audio chain of LRA36 Radio Nacional Arcangel San Gabriel, test broadcasts are being carried out (even on USB) with excellent signal reports which helps us to continue working together with the valuable testimony of DXers, SWLs and radio amateurs. Special recognition to the technical team : Alejandro Petrecca, Alejnandro Alvarez and Juan Benavente.
We want invite you to tune us on SATURDAY, FEBRUARY 18, 2023 between 20:00 and 23:00 UTC on 15476 khZ (USB). Reception reports: [email protected] WhatsApp messages +549 297 624 0137.
In the next week we will receive a transmitter of 1 kW modulated amplitude that has been calibrated for our new frequency at 15.475 KHZ. We will be announcing the test broadcasts of the new equipment in due course.
Likewise, once the improvements and survey of the complete audio and transmission system have been completed, a technical report will be carried out that will be taken into account for the acquisition during this year of a 10 KW transmitter equipment that will be destined for LRA36 to be put into service.
Likewise, the CCA 10 kw transmitter that was out of service has been completely disassembled, which will be transferred to the Radio Nacional transmission site in General Pacheco so that, once repaired, it will remain at the service of RAE Argentina al Mundo , thus recovering RAE’s shortwave output from our own transmission site, a possibility that will be realized thanks to RAE’s technical and human team and especially Jeff White, who, by strongly supporting RAE’s continuity in SW all these years via WRMI relay, it was really great argument for the authorities to understand that despite all the technological advances, shortwave is still necessary, and that a true public meda today must be able to be heard both on a Zenith Transoceanic, on a Sony ICF5900W , in a TECSUN, as in Radiogarden or in the latest radio app for iOS.
We´ll wait for all of you on Saturday 18 test broadcast from Antarctica from 5:00 p.m. to 8:00 p.m. Argentine time (8:00 p.m. to 11:00 p.m. UTC) frequency 15476 khz USB
We await your reception reports and if you get good listening, register and upload those videos on YOUTUBE, IG or FB.
We appreciate sharing this information among radio listeners, DXers and radio amateurs around the world.
First Short Wave Emission of Radio Nacional Arcangel San Gabriel Radio LRA 36 From the Esperanza Antarctic Base
Last Saturday, January 21, at 12:15 (15:15 UTC) Argentine time, the Antarctic shortwave radio station LRA 36 “Radio Nacional Arcángel San Gabriel”, located at Base Esperanza, began the program “Uniendo Voces”, from the cycle 2023 summer special of the RAE service, Radio Argentina abroad POR 15476 kHz (usb)
The program was carried out by Juan C. Benavente, a member of the Joint Antarctic Command and a professor at the National University of Quilmes; Marcelo Ayala, a journalist from LRA 1 Radio Nacional Buenos Aires, and Principal Corporal Nicole Valdebenito in the technical operation, a member of the Antarctic staff of that Argentine base. The proposal and general coordination is in charge of the director of RAE, the journalist and host Adrián Korol, who for years has coordinated the annual broadcasts of LRA 36.
In this first program, the Antarctic Joint Commander, Brigadier General Edgar Fernando Calandín; the head of the Esperanza base and current director of LRA 36, Lieutenant Colonel Gustavo Cordero Scandolo. For his part, the director of RAE spoke by telephone on the air before the closing of the program, emphasizing the importance and international repercussions of these wave broadcasts.
The broadcast was followed by diexers, radio listeners and radio amateurs from Argentina, Uruguay, Chile, Brazil, Mexico, Costa Rica, the United States, Spain, Germany, Japan, Ukraine, Belgium and France. Online SDR receivers (kiwisdr and websdr) in Latin America were active during the transmission with all their channels occupied and tuned almost entirely to the LRA36 frequency.
In addition, the Antarctic station LRA 36 is the only one that transmits on shortwave from Antarctica and also does so on FM for local coverage on the 96.7 MHz frequency, and on the Internet, from the site www.radionacional.com.ar/emisoras/Antarctica.
With the broadcast on Saturday, the start of the radio programming of the Special Summer Cycle is completed, which is part of the Antarctic Culture Agenda 2023 “Culture is Sovereignty”, an initiative for the sixth continent developed between the Ministry of Culture and the Ministry of Defense, through the Joint Antarctic Command (COCOANTAR).
The other radio activities in the cycle include the broadcast of “Panorama de Noticias”, hosted by journalist Marcelo Ayala, which is broadcast on LRA 1 in Buenos Aires, and the activation of station LU1ZV from Base Esperanza on amateur radio bands.
The airing was in charge of Nicole Valdebenito and Esteban Romero, members of the Navy and Air Force respectively.
ON SATURDAY, JANUARY 28, a new 90-minute broadcast will be made on short wave on 15476 kHz (USB) at 12 local time (15 UTC) with repetition at 4 local time (19 UTC)
Many thanks to SWLing Post contributor, Adrian Korol, who shares the following announcement:
LRA 36 RADIO NACIONAL ARCANGEL SAN GABRIEL presents UNIENDO VOCES, a special production made together with RAE (Radiodifusión Argentina al Exterior) and dedicated to shortwave listeners, DXers and ham radio amateurs from all over the world.
The transmission will take place on SATURDAY, JANUARY 21 at 15 UTC with repetition at 19 UTC on the frequency of 15476 kHz (USB) 19-meter band and will include the participation of Adrian Korol, Director of RAE and Juan Benavente, member of the Joint Antarctic Command, together with Marcelo Ayala, a journalist from Radio Nacional who hosts the morning Panorama Informativo for all Public Radio stations during January from LRA36.
The contents include live interviews, interesting material from the LRA36 sound archive such as audio from its first transmission, different IDs, audio from listeners of right-wingers at different times, and material from LA ROSA DE TOKIO, the program by Omar Somma and Arnaldo Slaen, who is RAE’s DX Editor.
This year is very important for LRA36. During the month of February, evaluation and measurement tasks of the irradiating system and short wave transmission will be carried out with the aim of providing A NEW SHORT WAVE TRANSMITTER to the beloved Antarctic station, the CCA 10 KW transmitter will also be withdrawn to the continent For your repair.
A new antenna will also be installed for the FM signal at 96.7 Mhz that will start to emit with a power of 250 watts (currently it does so with 25).
The iconic broadcaster has been supportive of the standard for over 20 years
The author is chairman of the DRM Consortium. Her commentaries appear regularly at radioworld.com.
Our old friend James Careless studiously ignores DRM once more in his well-researched, but to our minds incomplete article “BBC World Service Turns 90” in the March 30 issue.
As an ex-BBC senior manager, I would like to complete the story now that the hectic NAB Show is over.
Having lived through and experienced at close quarters the decision to reduce the BBC shortwave about 20 years ago, I can confirm that the BBC World Service decision to cut back on its shortwave footprint — especially in North America, where reliable, easy-to-receive daily broadcasts ceased — has generated much listener unhappiness over the years.
In hindsight, the decision was probably right, especially in view of the many rebroadcasting deals with public FM and medium-wave stations in the U.S. (and later other parts of the world like Africa and Europe) that would carry news and programs of interest to the wide public.
But BBC World Service in its long history never underestimated the great advantages of shortwave: wide coverage, excellent audio in some important and populous key BBC markets (like Nigeria) and the anonymity of shortwave, an essential attribute in countries with undemocratic regimes.
BBC World Service still enjoys today about 40 million listeners worldwide nowadays. [Continue reading…]
If you really want to know what makes any wireless application work, it is the antenna. Most people working with wireless — radio to those of you who prefer that term — tend to take antennas for granted. It is just something you have to add on to a wireless application at the last minute. Well, boy, do I have news for you. Without a good antenna, radio just doesn’t work too well. In this age of store/online-bought shortwave receivers, scanners, and amateur radio transceivers, your main job in getting your money’s worth out of these high-ticket purchases is to invest a little bit more and put up a really good antenna. In this article, I want to summarize some of the most common types and make you aware of what an antenna really is and how it works.
TRANSDUCER TO THE ETHER
In every wireless application, there is a transmitter and a receiver. They communicate via free space or what is often called the ether. At the transmitter, a radio signal is developed and then amplified to a specific power level. Then it is connected to an antenna. The antenna is the physical “thing” that converts the voltage from the transmitter into a radio signal. The radio signal is launched from the antenna toward the receiver.
A radio signal is the combination of a magnetic field and an electric field. Recall that a magnetic field is generated any time a current flows in a conductor. It is that invisible force field that can attract metal objects and cause compass needles to move. An electric field is another type of invisible force field that appears between conductors across which a voltage is applied. You have experienced an electric field if you have ever built up a charge by shuffling your feet across a carpet then touching something metal … zaaapp. A charged capacitor encloses an electric field between its plates.
Anyway, a radio wave is just a combination of the electric and magnetic fields at a right angle to one another. We call this an electromagnetic wave. This is what the antenna produces. It translates the voltage of the signal to be transmitted into these fields. The pair of fields are launched into space by the antenna, at which time they propagate at the speed of light through space (300,000,000 meters per second or about 186,000 miles per second). The two fields hang together and in effect, support and regenerate one another along the way. [Continue reading…]
The Smith Chart is one of the most useful tools in radio communications, but it is often misunderstood. The purpose of this article is to introduce you to the basics of the Smith Chart. After reading this, you will have a better understanding of impedance matching and VSWR — common parameters in a radio station.
The Smith Chart was invented by Phillip Smith, who was born in Lexington, MA on April 29, 1905. Smith attended Tufts College and was an active amateur radio operator with the callsign 1ANB. In 1928, he joined Bell Labs, where he became involved in the design of antennas for commercial AM broadcasting. Although Smith did a great deal of work with antennas, his expertise and passion focused on transmission lines. He relished the problem of matching the transmission line to the antenna; a component he considered matched the line to space. Continue reading →
Radio Waves: Stories Making Waves in the World of Radio
Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers. To that end: Welcome to the SWLing Post’sRadio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!
On. Oct. 30, 1938, America was rocked by shocking news: Aliens had been spotted crash-landing outside Grover’s Mill, N.J. Additional sightings were soon made across the Northeast, including reports of Martians unleashing poisonous gas on Manhattan and burning onlookers alive with ray guns. Periodically, the breathless news reports would be reduced to static.
Listeners reacted in real time; many of them flooded the streets wearing gas masks and wet towels over their faces. Stores were raided, bridges and expressways were inundated with traffic, and pregnant women reportedly went into early labor.
Of course, the alien invasion never actually happened. The news bulletins were part of a live Halloween program a young producer and a cast of talented actors were presenting over the radio. The producer was 23-year-old Orson Welles, and the name of the episode was “War of the Worlds.” The H.G. Wells-adapted story had been produced for radio as part of Welles’s regular Sunday night broadcast, “The Mercury Theater on the Air” — a program that had hitherto been largely ignored, as it was up against a wildly popular variety show starring comedians Edgar Bergen and Charlie McCarthy.
Only this Sunday was different, as millions of Americans who had tuned in to listen to Bergen and McCarthy changed their dials when the duo introduced a guest opera singer. “No one was in the mood for opera that night, and much of the country stumbled onto Welles’s broadcast by mistake, not knowing the news bulletins they heard were part of a radio drama,” explained Carl Amari, a syndicated radio host and the founder of Radio Spirits, a large distributor of classic radio programs. [Continue reading…]
As the U.S.-funded broadcaster is forced to shut most of its Russian operations, its Web traffic indicates that Russian people are eagerly consuming its stories
Radio Free Europe, the U.S.-funded operation that got its start by piping American-flavored news through the Iron Curtain in 1950, could see big trouble brewing for its Russian operation in recent years.
The Kremlin kept putting the screws to its Russian-language broadcasts, throwing up ever more regulatory hurdles. But it was in late 2020 that the hammer really came down. The “media regulator” demanded that every broadcast, digital story and video carry an intrusive disclaimer at the top stating that what followed was the product of a foreign agent.
“Basically, it was like telling our audience to go away,” said Jamie Fly, the CEO of Radio Free Europe/Radio Liberty, as the organization has been known since a 1976 merger.
A new Prague-based internet radio station has started to broadcast news, information and music tailored to the day-to-day concerns of some 300,000 Ukrainian refugees who have arrived in the Czech Republic since Russia launched its military assault against Ukraine.
In a studio at the heart of the Czech capital, radio veterans work together with absolute beginners to provide the refugees with what they need to know to settle as smoothly as possible in a new country. Continue reading →
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