Category Archives: DX

Don Moore’s Photo Album: Ecos del Torbes

Many thanks to SWLing Post contributor, Don Moore–noted author, traveler, and DXer–for the following guest post series:


Don Moore’s Photo Album

by Don Moore

Introduction

When I discovered DXing over fifty years ago I also discovered the world. Through my ears I traveled to other countries and explored other cultures. But DXing has also literally taken me places. My early interest in Latin American DXing developed into a broader interest in Latin America. That led to me joining the Peace Corps after college and working three years in Honduras. That experience furthered my interest in Latin America and I have continued to travel in the region whenever possible. For me DXing and travel were always intertwined. I’m one of a handful of hobbyists who took DXing beyond just listening and went knocking on broadcasters’ doors to visit the distant stations I heard. My ex-wife dubbed this ‘door-to-door DXing.’

To date I’ve visited over 150 radio stations in thirteen countries. A few were medium-wave or FM only, but I was always most interested in visiting broadcasters that used shortwave, either at the time of my visit or a few years before. As my station visits were primarily made in the 1980s and 1990s, almost all of the stations are long-gone from the shortwave bands. However, many are still around on medium wave and FM and often also via streaming on the Internet. As much as I miss the magic of shortwave I know that these stations reach more listeners today via streaming than they ever did with their low-powered shortwave transmitters. Honestly, I sometimes enjoy tuning them in without the fading and static of shortwave. But the memories of what shortwave once was are still there.

Photos also bring back memories. I took dozens of pictures on my station visits and enjoy scrolling through them now and then. You may have seen some of them. Many of my photos were printed with articles I wrote for various DX publications and I’ve done a few slide-shows at DX get-togethers over the years.

In this series of columns I want to share my old photos once again. If you’ve been DXing as long as I have maybe they’ll bring back memories of what you once heard. And if you haven’t been around that long you will have a better understanding of the good old days we oldtimers talk about.

Ecos Del Torbes

There is no better place to start this journey than with Ecos del Torbes. Using ten kilowatts on 4980 kHz, this Venezuelan broadcaster was possibly the most consistent station in the sixty-meter band throughout the 1970s, 80s, and 90s. If you were DXing the tropical bands during those years you surely logged them a few times. If you were lucky you may even have heard their one kilowatt signal on 9640 kHz. They were a very good verifier and for many DXers Ecos del Torbes was among the first Latin American stations QSLed.

Just after Christmas in 1994, my then-wife, four-year-old daughter, and I flew to Mérida in western Venezuela for a family vacation. For ten days we had a great time in this Andean city and then Theresa and Rebecca returned to Iowa while I stayed another week to visit radio stations. I was also getting paid by the Voice of America to research and write a study on the media scene in Andean Venezuela. The now very-out-of-date report can be read at my Patepluma Radio website (which hasn’t been changed in over twenty years and is in need of a facelift).

In that week I visited fifteen radio stations in six towns and cities and Ecos del Torbes was the highlight. I arrived at their doorstep unannounced but was immediately treated as an important guest. I was given a great tour and even got to sit in on a live newscast to see the famous Venezuelan doorbell being used live. I was there about ninety minutes and then walked a block up the street to sister station Radio Táchira. Their facilities were smaller but that’s where the technical offices were and Chief Engineer Ivan Escobar had been told to expect me. Ivan gave me a tour and invited me to visit the Ecos del Torbes transmitter site with him in the afternoon. On the way we stopped by his house where his wife had lunch waiting for us. Visiting Ecos del Torbes was not just the highlight of this trip but ranks as one of my all-time favorite station visits. These pictures bring back many good memories.

Photos

Ecos del Torbes was located in the second floor of this building in downtown San Cristóbal. The entrance was the door on the side.

The small plaque next to the door was easy to miss. I walked right by the first time.

Edgar Fabala of the news department showed me around. Here he demonstrates the mini-xylophones that Venezuelan stations used to make the distinctive ‘doorbell’ sound that separated items in the news reports.

Announcer in the studio preparing to read the news.

The adjoining control room.

Ecos del Torbes had one of the largest record libraries in Venezuela. The LPs were color-coded by type.

Julio Achila was a control room operator who had worked at the station since it opened in 1947.

This pennant was considerably larger than the ones sent to DXers.

Sister station Radio Táchira was located a block up the street on the fourth floor of this building.

The Ecos del Torbes transmitter building.

The 50 kilowatt medium wave transmitter on 780 kHz.

Chief Engineer Ivan Escobar and Don Moore next to the 31 meter transmitter. The larger transmitter was for the well-heard 4980 kHz frequency.

The antenna array used for 4980 kHz. The medium wave tower is in the background.

Dipole antenna used for 9640 kHz.

San Cristóbal once had a third broadcaster on shortwave. Radio San Sebastian used 6070 kHz in the early 1970s. (They were not affiliated with Ecos del Torbes).

That was nearly three decades ago and a lot has changed. Ecos del Torbes and Radio Táchira have been gone from shortwave for over twenty years.

In 1995 Ecos del Torbes was at the corner of Calle 9 and Carrera 8, the same address as when I first QSLed them in 1972. Sometime since my visit they moved an outer neighborhood about two kilometers to the east. To find the new offices locate San Cristóbal on Google maps and then search for “Grupo Radial Gonzalez Lovera”. The transmitter site is still where I visited it and can be seen by plugging the coordinates “7.7885, -72.2725” into Google maps and switching to satellite view. (Ignore the picture that pops up to the side. That’s not it.) Zooming in, the medium wave tower is clearly visible but there are no signs of the old shortwave antennas. I suspect they were sold for scrap years ago. I never have found out where the Radio Táchira transmitter site was.

I’d love to go back to Venezuela someday and see some of the other cities that I used to listen to, such as Barquisimeto, Valencia, El Tigre, and Sucre. Unfortunately the political and economic situation there doesn’t look good and it doesn’t look as if it will improve any time soon. But when it does, I’ll be back.


Click here to check out all of Don Moore’s Photo Album columns. Each new article will appear on the SWLing Post home page/feed and in this link.

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Introducing the amazing SULA: An affordable unidirectional DX-grade loop antenna that you can build!

Many thanks to SWLing Post contributor extraordinaire, 13dka, who brings us a three part series about the new SULA homebrew antenna project. This first article describes this affordable antenna and demonstrates its unique reception properties. The second article will focus on construction notes. The third and final article will essentially be a Q&A about the SULA antenna. All articles will eventually link to each other once published.

This wideband unidirectional antenna is an outstanding and innovative development for the portable DXer. I love the fact that it came to fruition via a collaboration between Grayhat and 13dka: two amazing gents and radio ambassadors on our SWLing.net discussion board and here on the SWLing Post. So many thanks to both of them!

Please enjoy and share SULA Part 1:


Introducing the Small Unidirectional Loop Antenna (SULA) 1-30MHz

A small and simple, unidirectional and DX-capable loop “beam” for SWLs!

by 13dka

In early June, Andrew (grayhat), SWLing Post‘s resident antenna wizard suggested a variation of the “cardioid loop” on the SWLing Post message board: The original “cardioid loop” is a small loop receiving antenna deriving its name from a cardioid shaped (unidirectional) radiation footprint. The design is strikingly simple but it has a few downsides: It relies on a custom preamp, it needs a ground rod to work and it is unidirectional only up to 8 MHz.

Andrew’s version had the components all shuffled around and it did not only lose the ground rod, it also promised a nice cardioid pattern over the entire shortwave, from a small, diamond shaped loop. Wait…what? It can be made using parts available on Amazon and your DIY store:

You need some 3m wire and PVC tubes to create a support structure to hold the wire, a 530 Ohm resistor and a 9:1 balun like the popular “NooElec One Nine”. Since it’s a “lossy” design, adding a generic LNA like the NooElec “LANA HF” would help getting most out of it. When you put that all together you have what sounds like an old shortwave listener’s dream: a small, portable, tangible, and completely practical allband shortwave reception beam antenna with some more convenient properties on top, for example, it is a bit afraid of heights.

That sounded both interesting and plain crazy, but the .nec files Andrew posted were clearly saying that this antenna is a thing now. Unfortunately Andrew suffered a little injury that kept him from making one of those right away, I on the other hand had almost all the needed parts in a drawer so I ended up making a prototype and putting it through some of its paces, with Andrew changing the design and me changing the actual antenna accordingly, then mounting it upside down. Let me show you around:

  •  Small, diamond shaped wire loop (with 76cm/29.92″ sides), needing as little space as most other small loops.
  • Unidirectional with a ~160° wide “beam” and one pronounced minimum with a front/back-ratio of typically 20dB over the entire reception range 1-30MHz.
  • Moderate height requirements: It works best up to 3m/10′ above ground, where it gives you…
  • …a main lobe with a convenient flat takeoff angle for DX
  • Antenna is comparatively insensitive to ground quality/conductivity.
  • Wideband design, works best on shortwave and is pretty good up to 70cm.

A functional small beam antenna for shortwave reception that’s just as small and possibly even more lightweight (prototype:~250g/9oz) than your regular SML, that can be easily made out of easy to obtain parts and easily carried around for mobile/portable DXing and due to its cardioid shaped directional pattern also for direction finding, a “tactical” antenna that’s also doing DX? Unlike conventional, Yagi-Uda or wire beams it can achieve a low takeoff angle at only 3m/10ft height or less, the front/back ratio is typically better than that of a 3-element Yagi, with a particularly useful horizontal pattern shape. That it’s rather indifferent to soil quality could mean that more people get to reproduce the good results and being a real wideband antenna is making the SULA an interesting companion for multiband radios and SDRs. Really? A miracle antenna? Is it that time of year again? If I had a dollar for every….

Continue reading

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WBOB: Last minute 50 kW DX test on 600 kHz

Many thanks to SWLing Post contributor, Paul Walker, who notes that he has only a few details about what appears to be a last minute DX test of WBOB in Jacksonville, Florida.

According to Paul’s source, WBOB on 600 kHz will be running 50 kilowatts from midnight to 3:00 AM local (04:00-07:00 UTC) on Saturday, May 14, 2022. Paul’s source noted the test will take place Friday and possibly Saturday nights, but technically these are early Saturday and Sunday times.

We’ve no other details, but Paul wanted to share what info he has. Thanks, Paul!

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Giuseppe’s Ponza Island DXpedition with the Icom IC-705

Many thanks to SWLing Post contributor, Giuseppe Morlè (IZ0GZW), who shares the following guest post:


Report from Ponza Island: May 6-9, 2022

by Giuseppe Morlè (IZ0GZW)

Ciao Thomas and Friends at the SWLing Post!

This is the summary of 3 days of testing of my Icom IC-705 just purchased and immediately taken to Ponza Island, my hometown, for a full immersion DXpedition only listening to amateur radio bands especially on 20 m.

Day 1

I left Formia on the ship that went to Ponza and it was not a good start given the adverse sea weather conditions. After 3 hours of crossing in the rain and the strong sirocco wind, I arrived on the island at my father’s house.

In the early afternoon in the rain, I hoisted a 20 meter row on the “sloper” type roof not so high from the ground and connected directly to the Icom 705 without any counterweight given the place without electrical noise.

The position of my father’s house is open from West to North but totally covered to the South by a hill of 200 meters …

In this video you can see all of this:

During the first night, 20 meters was full of signals especially from the USA; it was, in fact, what I had hoped for given the position open to the West.

Really good overseas signals despite bad weather … below is a series of mixes of North American stations: Continue reading

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LRA 36 Radio Nacional Arcangel San Gabriel: First broadcast of 2022 on May 7

Many thanks to SWLing Post contributor, Adrian Korol, who shares the following announcement from LRA 36:This year the radio team is all female–the host, producer and technicians are all women: Romina Zabalza, Mariela Churquina, Claudia Albarracín, and María Eugenia Rodríguez.

LRA 36 Radio Nacional Arcangel San Gabriel, Base Conjunta Esperanza (Antarctic) Season 2022.

FIRST 2022 TRANSMISSION:

SATURDAY MAY 7, 2022 AT 15:00 UTC ON 15.476 KHZ USB

REPORTS TO: [email protected]

Thank you so much for sharing this, Adrian! LRA 36 is one of my favorite stations to DX!

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Special DX Test via WCGA: May 1, 2022 at 04:00 UTC

Many thanks to SWLing Post contributor Loyd Van Horn at DX Central who writes:

Wanted to share this with you…..our final DX Central Live stream for season 2 will coincide with the upcoming WCGA-GA DX Test coming Saturday night/Sunday morning. You should have a GREAT shot at hearing this one….would love to have you join us for the livestream, too, if you can make it!

The link to the release with all of the details can be found below….

FOR IMMEDIATE RELEASE

Apr 28, 2022

The Courtesy Program Committee (CPC) of the National Radio Club (NRC) and the International Radio Club of America (IRCA) is pleased to announce a special DX Test for distant listeners for WCGA on 1100 kHz in Woodbine, GA. The test is scheduled for 5/1/2022 at 12:00:00 AM Eastern Time (0400 UTC Sunday, May 1st).  This test is scheduled to run for 2 hours.

For WCGA, Wesley Cox, will be performing regular maintenance of the station’s audio chain and transmitter during the test. Listeners will hear: Morse Code IDs at 10 WPM at 800 Hz, Morse Code IDs at 20 WPM at 1000 Hz, Tone Sweeps, Long duration tones at 1 kHz, Off-hook Telephone Sounds, Voice IDs and more.

WCGA will be operating on a full daytime power of 10,000 watts during the test on their daytime antenna pattern.   This should aid DXers across the country and indeed the world in being able to receive this test!

RECEPTION REPORTS & QSL REQUESTS

WCGA is actively soliciting reports from DX’ers on their signal. They’re interested in hearing about frequency stability, audio quality, and overall performance. The station will accept both hard copy reports via USPS mail and email reports. They would love to receive audio recordings in either .WAV or.MP3 and videos in .MP4 video.

Reception reports should go directly to:

Wesley Cox

Owner/General Manager

News/Talk 1100 WCGA

714 Narrow Way

St. Simons Island, Georgia 31522

[email protected]

Physical QSL card senders will receive a physical QSL. Email QSLs will receive email QSL.

Best audio narrative recording and received via email in MP3 or MP4 about themselves and their passion for radio that includes their reception of WCGA and the who, what, when, where, why and how of that event taking place will receive a special prize from the station. DX’ers who submit recordings must grant permission to broadcast their recordings. The decision of WCGA staff on the winner is final.

The IRCA/NRC CPC would like to thank the owners of WCGA, Wesley Cox, and Hall of Fame DXer, Jim Renfrew, for helping to arrange the test.

Good luck to all DXers!

About the CPC

The Courtesy Program Committee (CPC) is a cross-functional group comprised of members of both the National Radio Club (NRC) and International Radio Club of America (IRCA) for the purpose of coordinating and arranging DX Tests with AM radio stations.  These DX tests both allow radio stations to conduct valuable equipment tests on their transmitter and audio chain as well as enable DX hobbyists to receive the testing station from greater distances than would normally be possible.  The CPC membership consists of:  Chairman Les Rayburn, Paul Walker, George Santulli, Joe Miller and Loyd Van Horn.

For radio stations interested in coordinating a DX test with the CPC, please visit the following Web site for more information:

https://amdxtest.blogspot.com/

For more information on the types of content heard during a DX test, the video  “An introduction to DX Tests” is available at DX Central:

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International Radio Club’s Reprints collection of 900+ articles

Many thanks to SWLing Post contributor, Nick Hall-Patch, who shares the following announcement:

The International Radio Club’s Reprints collection of 900+ articles about antennas, radio propagation, receivers, accessories, plus items of general interest to MW DXers, continues to grow.   We’ve published an update to the index, at https://www.ircaonline.org/editor_upload/File/reprints/irca-reprint-index.pdf  ,  so that everyone can get access to these latest additions.

We’re also pleased to start offering reprints that did not initially appear in IRCA’s DX Monitor, but are not easily found elsewhere.  For example, we’ve obtained permission from the family of the late prolific author, Dallas Lankford, to organize and republish his out of print articles. 

(if you’ve used the index before, you may need to refresh the browser page to see the latest update, dated December 2021)

Click here to check out the IRCA Index (PDF).

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