Author Archives: Paul Walker

UPDATE: Radio Nacional da Amzonias Shortwave Service

by Paul Walker
News Director/Operations Assistant,
Wolf Creek Radio Broadcasting of Laramie, WY

As many know, Radio Nacional da Amazonias has been operating on a much reduced schedule for several months now. The shortwave service owned by the government broadcaster, Empresa Brasil de Comunicação is using transmitters that are about 50 years so and several technical breakdowns along with high energy costs have resulted in the reduced operating schedule.

What was 7 days a week 0750 to 0200UTC for both 6180 kHz (100 kW, 344 deg az) and 11780kHz (100kW, 312 deg az) has been (since July 1st 2026) 0745 to 2000UTC for 11780kHz and 2000 to 0200UTC for 6180kHz on weekdays with only 11780 on weekends 0900 to 2000UTC with 6180 off air weekends.

I contacted the Ombudsmans Office at the broadcaster regarding the current reduced schedule for Radio Nacional da Amazonias on Shortwave, mainly expressing concern for them losing access to many North American listeners with the reduced schedule and why getting back to normal is important. I also proposed a partial restoration of the full schedule. When you contact the Ombudsman’s Office, even as a non Brazilian, the 1988 Constitution details you are owed a reply. And I got one today… here’s what they said:

Dear Listener,

The Ombudsman’s Office appreciates your feedback and interest in the programming of Rádio Nacional.

Regarding your message, the Executive Management of Radio Stations thanks you for your message, your attention, and especially for the detailed account of the reception of Rádio Nacional da Amazônia on Shortwave in the United States. We also appreciate your comments on the programming and the importance of the service for listeners who follow the station from different parts of the world.

Regarding the reduction in broadcast hours on Shortwave, we inform you that the schedule will remain as currently practiced until the end of 2026. The expectation is that, in 2027, broadcasts will return to their usual times, as requested.

We also appreciate the observations and suggestions presented regarding the 11.780 kHz frequency and the shared reception records. They contribute to the station better understanding the experience of its listeners, including those who follow Rádio Nacional da Amazônia outside of Brazil.

So that does appear to be some good news! 6180 is pretty good in the eastern USA, but with its much more northerly beam, it’s not as good in the western US, but still pretty decent. 11780 signs off before it gets good in the western US.

And you’ve also got a CGTN (CRI) broadcast on 11780 from 00:00 to 01:00UTC, and 6180 from 00 to 05 UTC, both from sites in China, and those broadcasts do some damage to the Nacional Amazonias services in the western US. I’ve sent an email to CGTN asking if they’d consider moving those broadcasts to another frequency… but that’s another story for another time, I guess

By the way, you too can email the Ombudsman’s office, and I encourage you to do so: [email protected], and let them know how much you enjoy the services, as I have told them… between the lively futbol broadcasts, music, and the lively show with Mauricio Rabelo “Eu de Cá, Você de Lá” (Me here, you there), with listener interaction…the Amazonias Shortwave service is fun to listen to even if you don’t understand Portuguese.

Problems And Temporary Changes At The Shortwave Transmitter Park Near Brasilia

The 11780khz antenna beaming at 312 degrees

(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.

Another One Bites The Dust In Brazil?!?!

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.

Judge: The Dismantling Of The VOA Stops And Employees Can Go Back To Work

 

Published by SWLing.com contributor Paul Walker

From Politico:

 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.

(Their article is here: https://www.politico.com/news/2025/04/22/voice-of-america-donald-trump-00303983)

From The Washington Post:

Staffers at the government-funded Voice of America news service can go back to work, a federal judge in Washington ruled on Tuesday.

Another article is here: https://democracyforward.org/updates/voa-pi-granted/

Associated Press Story:  https://apnews.com/article/voice-of-america-trump-f30c48df0c16de622ec5fd99ee6c627c

Rádio Nacional da Amazônia Launches English & Spanish Programming

With thanks to Atsuhiko Takezawa in the World Radio & Television Handbook Facebook group for the tip-off

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)

Full original announcement in Portuguese at this link

Full original announcement translated to English at this link

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.

Why I DX?

…… 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!

A Transmitter Park In Brazil Is Celebrating its 50th Birthday!

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.

Find out more about the facility’s history at this link