Category Archives: AM

Giuseppe upcycles and improves a homebrew MW antenna

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

Dear Thomas and Friends of SWLing Post …

This is Giuseppe Morlè. As always, I try recycling what I have and improving upon antennas I’ve built in the past. This is one way we radio lovers can experiment. Many years ago, I made an antenna only for medium waves; by adding a circuit, I can now listen to short waves.

I took advantage of a small frame that I recovered from an old commercial FM / AM stereo receiver by removing its coils for medium waves and I wound around it only two coils sufficient to have a frequency range from 3.5 to 18 MHz.

I remember that the antenna in question also receives medium waves as it was born.

I chose this small frame because I wanted everything to be small in order to carry this compact antenna everywhere.

Unlike my other projects for SW and MW, which have a cable that carries the SW signal to the receiver, this time I used the induction that is created around one end of the loop, which I spiraled to get inside the stylus of my Tecsun PL-660 and which then transfers the signal to the receiver.

I did some tests on my balcony the day after a strong storm and I noticed that the propagation was absent but I still wanted to make sure that everything was working.

[Note that you can translate this video into your language via YouTube’s automatic subtitles. Click here to learn how to do this.]

I will keep you updated on other tests on more favorable days of propagation … I still invite you to follow me on my Youtube channel.

I wish everyone a good listening …
73. Giuseppe Morlè iz0gzw.

Many thanks, Giuseppe. I, for one, love all of your homebrewed and recycled antennas. This one is no exception! What a fun project. I love how you use what you have and aren’t afraid to experiment! Thank you for sharing.

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Radio Waves: Colombia’s life-saving pop song, FCC Commissioner Pro AM Radio, Experimental Radio News 6, FCC Comments on FM Power Increase, and Leo Laporte Retires

Radio Waves:  Stories Making Waves in the World of Radio

Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!


Colombia’s life-saving pop song (BBC Sounds)

It is 2010 and Colombian Colonel Jose Espejo has a problem. Not only is the Farc increasing its kidnapping activity, targeting police and military hostages, but many of the soldiers already in captivity – some kept in barbed-wire cages and held isolation in for over a decade – are losing hope of ever being rescued.

Colombia’s dense jungle and mountainous terrain mean rescue missions can take months to plan, especially because Farc guerrillas are known to shoot all hostages dead at the first hint of a raid. Colonel Espejo knew that in order for future missions to succeed, he would need to warn the captives that help was coming so they could be ready to make a break for it when the army arrived. But how do you get a message across to military hostages without tipping off their captors and placing them in even greater danger?

The unexpected solution – hide the message in a pop song with an interlude in Morse code that the military hostages could decipher. Soldiers learned Morse code in basic training, and it was unlikely that the Farc, who were not military trained, would know it. This is the tale of Better Days, a pop song with a secret Morse code message that became an actual lifesaver.

Click here to listen to this program on BBC Sounds.

FCC Commissioner Advocates for Preservation of AM Radio (Radio World)

At the NAFB Convention, Simington said AM radio is an “indispensable resource”

FCC Commissioner Nathan Simington met with members of the National Association of Farm Broadcasting during their 79th annual convention on Nov. 16. In his remarks, Simington emphasized the importance of AM radio and outlined the steps needed to ensure its future in a changing market.

Simington began his remarks with a more personal anecdote. He said he grew up on a farm in Saskatchewan, Canada, where “besides the trade papers, there was no media institution more trusted to inform us about all we needed to know than AM radio.”

“AM radio was for us then, and is for the more than three million farmers across the U.S. now, an indispensable resource,” he said.

Simington said AM radio is the “essential spine” of the Emergency Alert System and “lets you know what’s happening not just globally, but locally — from school closures and traffic delays to city council and county management meetings and high school sports games.”

He comments on the growing populations that view AM radio as a “dead” and outdated technology, and why he believes that to be a falsity. [Continue reading…]

Experimental Radio News 6

This issue is devoted entirely to experimental high-frequency (HF) or shortwave radio, including a new FCC docket accepting comments on a license application.

Click here to check out the latest Experimental Radio News issue!

Continue reading

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Don Moore’s Photo Album: Santa Bárbara, Honduras

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


Don Moore’s Photo Album: Santa Bárbara, Honduras

by Don Moore

I first set foot in Latin America in January 1982 when I arrived in Tegucigalpa to begin three months of Peace Corps training. Three months later I moved to my Honduran home, the town of Santa Bárbara in the western mountains. For the next two years I worked as a teacher and resource person at the Escuela Normal Mixta de Santa Bárbara, a specialized high school that trained its students to teach primary school.

Santa Bárbara had a shortwave station, La Voz del Junco on 6075 kHz but it was rarely reported because it broadcast irregularly and was usually blocked by big international broadcasters when it was on the air. I had never heard it but I met Miguel Hasbun, the owner-manager, on my first visit to Santa Bárbara when he picked me up hitchhiking north of town. He told me that the shortwave transmitter had been broken down for a while but that he was going to fix it ‘soon’. Over the next year I kept inquiring about the shortwave and he finally did fix it. After that the station broadcast irregularly for the next year or so, mostly in the morning. I served as volunteer veri-signer and issued around fifteen QSLs. I even issued one to myself.

Santa Bárbara had one other radio station, Ondas del Ulúa on 1140 kHz medium wave (later 1150 kHz). They also announced 4770 kHz shortwave in their canned IDs and station staff assured me they would be adding shortwave “soon”. It never did happen but the WRTH did list the frequency as future plans for several years.

Audio:

Ondas del Ulúa 1982 sign-off announcement mentioning 4770 kHz.

The department of Santa Bárbara had one other radio station, Radio Luz y Vida on 1600 and 3250 kHz in the town of San Luis. The founder, manager, and veri-signer for Radio Luz y Vida was a missionary from Oklahoma named Don Moore. Needless to say, this caused a lot of confusion in the DX world as some people assumed he and I were the same person. On the map, San Luis is only about thirty kilometers from Santa Bárbara but getting there involved a five-hour journey on two buses. I only went once and the other Don Moore was out of town, so I never met him. I did meet two nurses who were working at the mission’s health clinic.

Photos

These pictures were all taken in 1982 to 1984 while I lived in Santa Bárbara [click on photos to enlarge].


La Voz del Junco’s yellow sign on main street in downtown Santa Bárbara. The small tower on the left was the corner of what had been an army post but was being used as a regional prison in the early 1980s. I once went there every day for a week to supervise student-teachers doing adult literacy classes for the inmates. It was not a pleasant place to be.


Entrance to La Voz del Junco. The girl is examining a poster for the night’s showing at the makeshift movie theater that Don Miguel operated nearby. Continue reading

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The International Radio Report’s 35th Anniversary!

Many thanks to SWLing Post contributor, Sheldon Harvey–creator, co-host and co-producer of the International Radio Report–who shares the following announcement:

Almost impossible for me to believe it, but Sunday’s upcoming edition of the International Radio Report on CKUT-FM in Montreal will be our 35th anniversary edition of the program. The first edition of the program aired on Thursday, November 19, 1987, our old time slot. That week in 1987 CKUT was also born, going on the air on 90.3 FM, 7 days a week, 24 hours a day.

International Radio Report is one of only a couple of programs to have been continually on the CKUT schedule since the beginning. Our hosts have changed from time to time over the years, as did our time slot, moving from Thursday afternoons at 2:30 PM Eastern to Sunday mornings at 10:30 AM Eastern.

I’d like to thank everyone who has been a part of the program over the 35 years; the various hosts, the numerous guests, and the support of CKUT for standing behind us and providing us with an outlet to bring our program to the listeners, not just here in Montreal but, literally, around the world.

And, to the listeners, a big thank you to everyone who tunes in, whether Sundays on the radio, through online streaming, downloading the program, or tuning in through our YouTube channel. We thank those who have taken the time to submit stories and material for the program. It’s a great help.

Whether you’ve been with us since the early days, or whether you’ve discovered us and come on-board recently, without an audience and your support, we wouldn’t be here. And a very special thanks to those of you who have supported our program and CKUT over the years through the annual CKUT Funding Drive. It costs money to run a radio station. It certainly doesn’t all happen for free! Our listeners have been most generous over the years, making our 30-minute program one of the most successful programs on CKUT at bringing in funds to support the cause.

So, we hope you will tune in, by whatever means you tune in, on Sunday, November 20th to help us celebrate as we mark our 35th anniversary of the International Radio Report on CKUT 90.3 FM in Montreal.

Sheldon Harvey
Creator, co-host and co-producer
International Radio Report

Click here to listen to CKUT live.

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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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File this under: you never know and . . . what’s the harm in experimenting?

 

 

by Jock Elliott, KB2GOM

Ever since Thomas (our Maximum Leader) posted the latest DX Central MW Challenge, I’ve been curious . . . what could I hear if I gave it a shot?

Habitually, I get up early, between 4 and 5 am, so I decided to give it a try. Conventional wisdom is that, if you want to do AM (medium wave) DXing, you need a hot AM radio with a big ferrite bar, like the CCrane 2E . . .

Wanna guess what radio and antenna combo acquitted itself pretty well?

My old ham rig, an Icom IC-706 MkIIG, (which I wrote up here), hooked to my 50-foot wire indoor antenna, the horizontal room loop (which I wrote up here).

This AM’s listening, from my home outside Troy, NY, produced:

1170, WWVA — Wheeling, West Virginia
1180, WHAM — Rochester, NY
1200, Talk 1200 — Boston
1210, WPHT — Philadelphia

Now, before you hard-core AM DXers get all up in my face — Hey, I could hear those stations on the fillings in my teeth! — I’ll simply say that I get a kick out of hearing a distant station . . . any distant station . . . even it’s just a few hundred miles away. Sure, it’s not the astonishing stuff that Paul Walker and Gary DeBock accomplish, but to hear that faraway signal, crackling through the airwaves does me good.

Bottom line: you don’t need the latest and greatest optimized-for-the-task gear to give something a try . . . and you just might really enjoy it!

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2022-23 Season of the MW Frequency Challenge is underway with Week 1: 1160-1224 kHz

Many thanks to SWLing Post contributor Loyd Van Horn at DX Central who shares the following announcement:

We are kicking off the 2022-23 DX season with the return of the MW Frequency Challenge! The MW Frequency Challenge officially started during the season premiere of our DX Central Live! livestream on YouTube on Friday, September 2022.

Our frequency range for this week’s challenge is 1160-1224 kHz!

A reminder of the rules for this season:

    • Submitted loggings must be for receptions made between 0000 UTC Saturday, September 24, 2022 and 0200 UTC Saturday, October 1, 2022. Any station that transmits between 1160-1224 kHz will be accepted for the challenge.
    • Submissions/loggings must be made with your own equipment, NO ONLINE SDRs (unless you own the online SDR). If you are logging receptions away from your home location, be sure to note that location on the submision form.
    • Submissions must be entered on the Google Form using the link below. Logs posted through social media, DX club log submissions, email, etc. will not be accepted.
    • Receptions can be for any station received within the frequency range. It does not need to be “new to you”, relogs are welcome as long as it occurred during the challenge period.

This week’s Google Form link is: https://forms.gle/EtKhNYc1qZhVmexh8

Good luck and best of DX!

73,

Loyd

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