Shortwave listening and everything radio including reviews, broadcasting, ham radio, field operation, DXing, maker kits, travel, emergency gear, events, and more
(compiled, posted and edited by Paul Walker, KSKO-FM McGrath Alaska Program Director and Avid SWL’er)
UPDATE: On November 13th, I was told that 11780khz is operating with 50,000 watts transmitter power output instead of it’s usual 100,000 Watts. It was also shared with me that new tubes are in the process of being ordered and they hope to be back to normal about in about a week from the date of this update. This story was originally published November 9th.
Over the last few years, many of us who enjoy listening to Radio Nacional da Amazônia have noticed the 11780 kHz signal coming and going. It’s had several breakdowns, mostly because the transmitter is about 50 years old now. They’ve been running it at 100 kW instead of the full 250 kW, but even then, it’s been showing its age.
The weekend of November 8th, 11780 kHz was off again. But this time, 6180 kHz was sounding unusually good up here in Alaska — stronger and clearer than I’ve heard it in a while. That one usually beams at 239 degrees toward South America, so it really caught my attention.
Curious about what was going on, I reached out to Manoel Caetano, Radio Engineering Manager at Empresa Brasil de Comunicação, which runs Radio Nacional. Here’s what he told me:
“We had a problem with the logic unit of the 11780 transmitter, but that’s been resolved. However, we’re still having issues with the 4CX5000 tubes, so 11780 is running at reduced power until we get replacements. Also, 6180 kHz has been switched to the 11780 kHz 312° antenna because of the COP30 event taking place in Belém, Brazil.”
Always interesting to get a peek behind the curtain like that. It’s good to know the folks at EBC are keeping these classic shortwave services going, even if it means juggling transmitters and antennas from time to time. Thank you to Manoel for answering my questions and providing the picture.
Written/Published/Edited by SWLing.com Contributor Paul Walker, avid SW DXer and manager of KSKO 89.5 McGrath, Alaska
Surprisingly, RBC’s 7.5KW signal on 11815khz was quite regular here and heard very well at times. A few weeks ago, I realized I hadn’t heard it in several months, which has never happened really. I’m a member of the North American Shortwave Association so I posted a question there, because no matte how niche a station may be, someone can usually find or knows the answer.
I was greeted with this answer from Rich D’Angelo:
The following ius from May’s Listeners Notebook contributed by Brazilian DX’er Pedro de Castro:
Rádio Brasil Central AM – which currently operates at 1270 – will migrate to FM, according to the process approved by the Ministry of Communications at the end of last February. According to the president of Agência Brasil Central, Reginaldo Junior, the migration will guarantee the survival and legacy of 75 years of the station. The AM operation will be terminated at Fazenda Bananal, where the transmitters of these operations in medium, short and tropical waves are installed. Two other FM radio stations may be created with the migration of shortwave and tropical frequencies as well, still unpredicted. (Juliana Carnevalli via Agência Brasil Central (ABC) – Government of Goiás/Pedro de Castro-Brazil)
Sad to hear, but we must face the reality and progression of time and technology. SW equipment is tough, expensive and time to repair, maintain or purchase new. With a few well placed FM signals, they can cover the areas that really matter in much better, much more consistent quality. We have to remember we as DX’ers aren’t the target and the fact we can hear a sub 10,000 Watt signal outside of its target area wasn’t intended and just a bonus. The electricity costs for a few FM signals are likely less than a 50KW full time AM and 2 full time shortwave signals.
A federal judge agreed Tuesday to block the Trump administration from dismantling Voice of America, the 83-year-old international news service created by Congress.
U.S. District Judge Royce Lamberth ruled that the administration illegally required Voice of America to cease operations for the first time since its World War II-era inception.
Starting March 31st, Radio Nacional will broadcast a 10 minute program in english and spanish at 01:50UTC!
EBC’s Executive Radio Manager Thiago Regotto says this new programming is in response to listener requests when they send in reception reports from other countries. The network will use this programming to highlight some content that has aired on international or cultural topics that have a relevance beyond Brazil, highlighting Radio Nacional as a broadcaster without borders.
The programming will air on the entire Radio Nacional Network, which includes the shortwave outlets at 6180khz (100kw, 239 deg az. beam) and 11780khz (100kw, 312 deg az. beam)
Sunday March 30th Edit: Paul Walker here, I originally posted this article. I realize I may have made a mistake when posting this. The original announcement specified 1050pm local time March 31st, which would be 01050UTC April 1st. I jumbled up some dates/numbers on this, so it may not start till UTC time April 1st. My apologies for the mistake, if in fact I made one.
…… or as all the locals call it, “Talking to the aliens at the International Space Station.” You might ask yourself, what in the world? Well, I live in a very small, remote bush Alaska village, and my DXing is done outside, yes… even in winter. I’ve been here 3 1/2 years now, and when I first got here, 2 or 3 people seriously thought I was trying to talk to aliens.
I’m kinda “late” to the DXing game… starting seriously in 2014 when I was 30 years old but dabbling in it as young as 5th grade when I thought it was SO COOL I could hear WOWO 1190 Fort Wayne, Indiana, and KDKA 1020 Pittsburgh, Pennsylvania, in central Connecticut clear as a bell at night.
In like 6th grade, my uncle gave me a beautiful tabletop Firestone radio and hooked up a long wire about 100 feet long from my bedroom window to a tree in my yard… wow, WLW 700 Cincinnati every night in Connecticut, I was hooked!
When I discovered how radio waves traveled great distances and at the same time, listening to a really fun oldies station, Big D 103… I was like “This is for me,” and started my quest and desire to work in radio… something about speaking into a radio and being heard 10-20-30-40-50 miles away fascinated me to the umpteenth degree.
That was really before the internet, but I’m 40 now and have been working in radio for 20 years, still DXing mostly every day. Most of my money is spent on food and DXing accouterments.
I’ve had people ask me, especially those who in the small Alaskan village I’m in, “Why, especially in cold weather do you do this?”
I tell them a couple things… I moved up here in part for the hobby, so I’m going to take every advantage I can. There’s too much electrical noise for me to do it from home.
Sitting out here at the park is my “Happy place,” especially after a particularly trying day at work for any number of reasons; this is my place to escape and decompress while being by myself… peace and quiet.
Plus, it’s the magic of how these radio waves travel that got me interested in working in radio. I’ve never lost that childhood magic and wonderment of radio waves and how things work, even though I’m 40. I’m really 40 going on 12 anyways.
I like how when I know when and where to listen, I can hear some amazing things up here in Alaska that many people wouldn’t expect I’d hear at all or as well. There’s something to sitting at the park, especially on a nice summer afternoon, and getting a solid S9+60 or better signal on Radio Nacional de Amazonias 11780 kHz from 12,400 km, opening my radio’s audio filter to 8 kHz bandwidth, and listening to a football match, sounding like I’m right in the stadium or tuned to their music/listener interactive show “Eu de Cá, Você de Lá” hosted by Mauricio Rabelo and sound like I’m tuned in on a 50,000 Watt AM from 50 miles away.
And no, I don’t understand 99.5% of Portuguese, and I only know a few basic words I can speak. I’m way way outside of their target area, but RNA from Brazil being anywhere from “listenable” to “Banging in like a ton of lead bricks” is very common because I’m in just the right place for it.
And I do it all without the internet. Well, OK… I do use the schedule from www.eibispace.de.
All of that combines to fascinate me. And yes, remember… I know how it all works, and I still do a lot of internet streaming, but radio waves continue to fascinate me because it takes some twisting of knobs and fiddling with the antenna to get it just right.
And the fact that it just works and travels through the air is amazing to me.
I live in McGrath, Alaska, which is a community of 275 people that is 355 km NW of Anchorage, completely off the radio system. I manage the daily operations of KSKO Public Radio, an NPR member station, with 8 FM transmitters spread across several hundred miles of Alaska. You can also catch me every Friday on Spaceline Bulgaria’s 5900 kHz transmitter across Europe 2100-2200 UTC with a live relay of my very local KSKO Lunchtime show.
I moved up here for the job, but also knowing that from past experiences living 125 miles north of here 7 years ago, that DX would be amazing. And it’s far exceeded my expectations along with the knowledge and expectations of some of my broadcast engineer friends and station owner friends!
The facility 40km northwest of Brasilia originally cost $15 Million USD to build and will turn 50 years old on March 11, 2024. It’s home to several SW, AM and FM transmitters , including Radio Nacional de Amazonias on 6180 and 11780khz. The stations owner, Empresa Brasil de Comunicação , a government owned agency plans to recognize the facility’s Gold anniversary.
Radio Nacional Brazil staff & reception of the Amazonias shortwave service in Alaska!
by Paul Walker, Program Director Of KSKO 89.5 McGrath, Alaska
I moved up to McGrath for 2 reasons, the job and DX’ing! Some people move here because they’re outdoorsy types.. hunting, fishing or etc but not me. I knew from previous experience in Galena, Alaska that DXing here would be amazing so after a 3 year absence
I have done AM DX, but am mainly doing SW DX now and while I’ve used a few radios over the years, this is my current radio, the long silver rectangular TEF6686. It’s coupled with a 15 foot Wellbrook loop, DXEngineering Preamp and an EmTech ZM2
I quickly discovered Radio Nacional de Amazonias service broadcasting from near Brasilia to the Amazon region of Brazil. They use 100,000 Watts on 6180khz and 11780khz. 6180 is listed on Short-wave.info as beaming at 344 degrees and 11780 is listed as 0 degrees, which could be interpreted as 360/1 deg, straight up or Non Directional.. neither of which appears to be true according to a map I’ve seen in a few places
It would appear the 6180khz service is beamed at about 355 degrees and the 11780khz service is beamed at about 345 degrees.
Anyways, I quickly came to like this station because, even though it’s all in Portuguese, a language I neither speak nor really understand.. it’s quite lively and entertaining. Wether it’s a futbol match, with the announcer holding the “GOOOOAAAAALLLLL” scream for 10-20 seconds, a radio play/drama (Yes, really!) or an interactive show with listener comments and music, it’s a FUN listen and you get the sense that the audience likes the station!
Here’s a short 3 clip montage of some excited futbol announcers on Radio Nacional de Amazonias 11780khz recorded from my Alaska QTH as they excitedly proclaim “GOAAAAALLLL”
That listener interactive show is what really drew me in, hosted by the man in the cowboy hat in the picture at the top of this page, Mauricio Rabelo. He seems to be well liked, somewhat of a long term legend in Brazil radio and good at what he does.
The Radio Nacional de Amazonias signal on 11780khz is always at least mildly listenable here in McGrath, alaska but as evidenced by the picture, it can be and is often quite good. There are many times where its as solid as a 50KW local broadcast AM signal from 20 miles away could be with zero noise, zero fading and the ability to widen my radios audio bandwith all the way from 3khz to 6khz or even sometimes 8khz bandwith!
Here’s a video of my reception using the older ATS25 radio
I soon discovered that the station had a WhatsApp number and listeners could send in messages that the station would sometimes play over the air so I thought to myself, “Why not? give it a try” and they were thrilled to have a listener so far away who also sent in a message.
I am many thousands of KM’s outside the target area of the SW signal but am directly in the main lobe and at a great location for a 2nd or 3rd hop, which is what makes the signal so consistent and so good for me.
I became a regular listener and semi regular contributor of WhatsApp voice messages to the show, “Eu de Cá Você Lá” that Mauricio Rabelo hosts most afternoons. He admitted once or twice, his English was very very poor and almost non existent so I took it upon myself to start using a few Portuguese words from time to time, and even using a few new ones now and then.. probably butchering the pronunciations but people started taking notice.
Mauricio himself would use a few basic english words “thank you my friend” and struggle to do it, but he’d try. Listeners especially took notice and would comment from time to time on my participation in the show, loving the fact I listen from so far away and have tried to learn their language.
This has gone on over the last 3 years or so and is still fun for me. I usually tell Mauricio and listeners in my messages about the weather here or any important/interesting news we have going on, in very brief detail. I’ve had listeners even invite me to visit Brazil! I make sure I begin each message with a greeting in Portuguese, “boa noite” (goodnight) and end each message with a “sign off” in Portuguese, “muito obrigado” (many thanks) so if nothing else gets said in Portuguese, there’s at least that.
I’ve been known to make dinner and go to the park with my gear on warm weather days and enjoy listening while eating dinner!
In a tv special on 100 years of radio in Brazil, Mauricio and another man are guests where they talk about radio and in one particular segment, they talk about the reach of Radio Nacional on Shortwave. In the video below, fast forward to 4 minutes and 10 seconds then watch/listen for a little bit…. you don’t have to understand Portuguese to understand the reference Mauricio makes about 30-40 seconds in
I kind’ve consider Radio Nacional de Amazonias to be “somewhat dx” despite the regularity and strength of the signal because I’m so far from their intended service area yet the signal visits me at a good level quite often. It’s a perfect set of circumstances that make that happen too, because If I was further west/southwest or further east/southeast the signal wouldn’t be as good.
I’ve searched high and low for clips of the station and found some good ones, but never any quite as good as mine.
By the way, the picture of the staff at the very top of the post was taken by them just for me and sent over WhatsApp after I sent along a picture and video of me working at KSKO 89.5. The man on the left in yellow is the co host of “”Eu de Cá Você Lá”, the woman in yellow is the female news reader, the man 3rd from the left is the producer and the man on the far right in the cowboy hat is Mauricio Rabelo. Search for Mauricio on Youtube and you’ll find some very interesting videos of him holding a parade when he was campaigning some years ago for a federal office
I like, despite the distance and language barrier, there’s been a bit of a connection between people. It’s the magic of radio waves that got me interested in working in the broadcasting business nearly 30 years ago and part of the reason why I’m still at it after 20 years
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