Tag Archives: MW DX

Medium wave DX: Colombia, Peru, Ecuador and Venezuela heard in Oxford, UK

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Hi there, I thought I would share a few recent medium wave DX catches from South America. In the past month or so, I’ve managed to record signals from Colombia, Peru, Venezuela and one that I’m particularly happy about – Ecuador, which is rarely reported in Europe. All catches were obtained with my usual indoor home set-up – the brilliant little Elad FDM DUO coupled to the equally brilliant Wellbrook ALA1530 active loop antenna. I have started to take the Elad on DXpeditions now, having constructed a battery pack for it, but the results I’m yielding outdoors are so far mainly with shortwave reception, where the improvement in SNR is quite obvious in the size of the carriers I’m observing and much improved modulation/ audio clarity on the Tropical Band. Hopefully in time, similar results will yield on medium wave. In the meantime, Im very happy with the indoor performance and these catches demonstrate that. There are many more reception videos on my YouTube channel Oxford Shortwave Log, including a large number of signals recorded from North America on medium wave. Direct links follow below and further down, embedded reception videos. Thanks very much for watching, listening and I will you all excellent DX.


Medium wave DX: Radio Huellas 1470 kHz, Cali, Colombia, first reception

 

Medium wave DX: Bethel Radio 1570 kHz, Lima Peru, first reception

 

Medium wave DX: Radio Santa Maria 1490 kHz, Azogues, Ecuador

 

Medium wave DX: YVKS RCR 750 Radio Caracas 750 kHz, Venezuela

 

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

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Medium wave DX logs: WMEX, CFRB, CJBC, WNYC, WARV, WRCA, WWRU received in Oxford, UK

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Hi there, here is a selection of North American medium wave stations logged in Oxford UK, over the past couple of weeks using the Elad FDM DUO and Wellbrook ALA1530 active loop antenna (indoors).  A quick list of stations logged follows below – with URL links which will take you directly to the respective reception video on the Oxford Shortwave Log YouTube channel. Embedded reception videos follow further below.  A subsequent posting will follow detailing some South American stations logged recently on medium wave, using the same Elad/Wellbrook set-up. Thanks for watching/ listening and I wish you all great DX.

 


Medium wave DX: WMEX Boston Talk Radio 1510 KHz, wonderful signal

 

Medium wave DX: CFRB Newstalk 1010 Toronto 1010 kHz, with clear ID

 

Medium wave DX: CJBC Toronto 860 kHz, French language network of CBC

 

1000th video! Medium wave DX: WNYC 820 kHz, New York Public Radio (presumed)

 

Medium wave DX: WARV 1590 kHz, Warwick, Rhode Island, USA

 

Medium wave DX: WRCA 1330 kHz, Waltham Massachusetts, clear ID

 

Medium wave DX: WWRU Jersey City 1660 kHz, New Jersey, clear ID

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

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Medium Wave DX: CBC Radio 1 Gander, 1400 kHz, remarkably clear signal in Oxford UK

CBC Radio 1, Gander, heard in Oxford UK

A really great signal from CBC Radio 1 Gander – the best I’ve ever heard on this or any other medium wave frequency, complete with a clear station ID and very much out of season so-to-speak. I can’t remember recording any Medium Wave transatlantic signal with an audio bandwidth filter of 7 kHz, which says everything about the relative strength of this signal; 2.5 to perhaps 4 kHz would be more typical. As the subscribers to my youtube channel Oxford Shortwave log will know, I dabble in Medium Wave DXing, however, it requires a lot of patience because conditions of good propagation can occur quite infrequently. This is where the band recording features incorporated into the Elad FDM-SW2 software (and similar software for other SDR receivers) come into their own, allowing you to record the entire medium wave band, for example, for later analysis. As for the Wellbrook ALA1530 active loop antenna, I can’t praise it highly enough, both in terms of combating QRM and overall performance as a function of compactness.

Recorded in Oxford UK using an Elad FDM DUO and Wellbrook ALA1530 active loop antenna (indoors) on 29/06/16 at 03:00 hrs UTC.

Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

 

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Norway DXer tunes into CBC Saskatchewan

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Many thanks to my pal, Sheldon Harvey (of the International Radio Report and CIDX), for sharing this news item from the CBC News in Saskatchewan:

Ole Forr is a 58-year-old radio lover who tunes into radio stations across the world for fun

A dairy farmer in Norway went to great lengths to tune into CBC Saskatchewan.

Sure, The Morning Edition with Sheila Coles is the No. 1 morning radio show in Saskatchewan. But few people could have expected it to reach a group of listeners more than 5,800 kilometres away— and not through the internet.

Ole Forr doesn’t let thousands of kilometres and the Atlantic Ocean get in the way of his hobby.

[…]Every late October, Forr and three friends visit a remote location in northern Norway, where he said they spend up to two weeks listening to radio broadcasts using some very long-range receiving antennas.

On Oct. 27, 2015, Forr tuned into CBK 540 AM from Andøya, Norway.

“It’s very remote, so there is no man-made noise,” Forr said. “From October to March, it’s very dark up there so to have dark between the transmitter and the receiver.”

Forr contacted CBC Saskatchewan to verify his recording, providing MP3 evidence of the broadcast.[…]

Read the full article, along with audio, on the CBC News Saskatchewan website.

Thanks again, Sheldon! I love stories like this that give our radio hobby a little time in the limelight!

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Guest Post: Wellbrook 1530LNPro vs ALA1530S+ Imperium Loop Antennas

Many thanks to SWLing Post contributor and noted DXer, Guy Atkins, for the following guest post:


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Wellbrook 1530LNPro vs ALA1530S+ Imperium Loop Antennas

-Guy Atkins

This past weekend I found some interesting results from medium wave DXing with both models of Wellbrook Imperium loop antennas at the “fabled” Rockworks cliffs near Manzanita, Oregon USA. This location has become popular the last few years with Oregon, Washington, and British Columbia DXers due to the signal enhancement at this narrow strip of land approx. 450 feet above the Pacific ocean. The main benefit seems to be splatter reduction of “pest” stations due to the signal blockage of the rock walls blasted into the cliffs for the coastal highway 101. However, a boost of signals around local sunrise is also beneficial, and is a common occurrence near salt water beaches.

Here is a Google Maps Street View of this beautiful “wide spot in the road” along the cliffs.

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Because of the limited space along this scenic coastal highway, all antennas used for DXing need to be both compact and temporary. Wellbrook loops supported on pro-audio speaker stands are a great way to go, and can easily be set up in the pre-dawn darkness.

Comparison

Both Wellbrook loop antennas mounted on "pro-audio" tripod stands right at the cliff edge at Rockworks Cliffs. (Photo: Guy Atkins)

Both Wellbrook loop antennas mounted on “pro-audio” tripod stands right at the cliff edge at Rockworks Cliffs. (Photo: Guy Atkins)

This is a comparison file of weak signal reception with the two models of Wellbrook Communications “Imperium” series loop antennas: the ALA1530LN “Pro” Imperium and the ALA1530S+ Imperium.

Both models of compact, 1-meter dia. active loops are excellent for reception from longwave & medium wave upwards. However, the ALA1530LN “Pro” excels at LW & MW with its low overall noise level and 9dB higher gain, engineered by Wellbrook for improved signal-to-noise ratio (S/N) of up to 10 dB. S/N on the HF bands is reportedly better also.

My laptop running HDSDR software in my SUV; the receiver is an Elad FDM-S2. (Photo: Guy Atkins)

My laptop running HDSDR software in my SUV; the receiver is an Elad FDM-S2. (Photo: Guy Atkins)

On the weekend of October 24th, 2015 I was DXing at the “Rockworks” cliffs on the Oregon coast near Manzanita, OR. Both of these Imperium series antennas were in use and I was recording the medium wave band with an Elad FDM-S2 SDR receiver. Both antennas were fed with identical 25 ft. lengths of RG-58 coaxial cable.

The demonstration in this video begins with 10 seconds using the ALA1530LN Pro Imperium loop, alternating with 10 seconds with the ALA1530S+ Imperium loop.

The first signal tuned is aviation voice beacon “SQM” from Level Island, Alaska on 529 kHz (400 watts). The signal is weak, but audible as it rises above the noise floor. The reception improvement with the ALA1530LN Pro is evident.

Half way through the recording the frequency is switched to 1710 kHz, where an unidentified station (possibly a MW pirate) is audible playing the 1967 Zombies tune “Time of the Season”. Again, the clip starts with 10 seconds with the ALA1530LN Pro alternating with 10 seconds of the ALA1530S+ Imperium.

Each antenna is a worthy, compact loop for DXing, but for chasing the weakest signals with the best readability I think the ALA1530LN Pro shows its advantages.


Many thanks, Guy, for sharing your loop research! 

What I love about your portable SDR set-up, is that you can go to the cliff side, set up your antennas and equipment, record the spectrum on your SDR, then go back home to analyze and listen to what you captured.  It takes some of the pressure off while you’re on-site. 

This year at the Dayton Hamvention, I purchased the Pixel Technologies RF PRO-1B mag loop antenna. I used it (for the first time) at the PARI DXpedition. We were all impressed with its performance. I would love to compare it with the ALA1530LN Pro at some point in the future.

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Obtaining QSLs from AM broadcast stations?

RCA-Dial

SWLing Post reader, Paul Grodkowski, writes:

“Just a quick question to anyone at the SWLing Post:

Is the practice of sending a reception report to a AM broadcast station in return for a QSL card still accepted in the age of the internet ?

So many stations are broadcasting online now that I wonder if they have QSL cards at all?

I just want to keep up with the times and not bother busy people at radio stations and look out of date, yet at the same time would like to confirm report of reception.

Any information would be greatly appreciated.”

Thanks for your question, Paul! I’m no expert on AM broadcast QSLing, but I’m pretty sure many mediumwave stations still respond to listener reports. Indeed, I believe there are even radio enthusiasts who act as QSL managers of larger clear channel stations (CFZM comes to mind).

Of course, one brilliant resource for all things MW DX is the National Radio Club (NRC).

Readers: Can you help answer Paul’s question? Please comment. Also, if you have some AM broadcast QSL cards, please contact me as I would love to post some.

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Medium Wave DXer, Johnny Bråtveit, interviewed by Oregon Public Broadcasting

SX-99-DialCheck out this excellent in-depth interview with medium wave DXer, Johnny Bråtveit, via Oregon Public Broadcasting (OPD):

“About a month ago, our station received a fascinating email. It came from a Norwegian man named Tore Johnny Braatveit. He wrote: “I am one of those people who still really enjoys hunting for long-distance radio signals on the AM band. I am glad to tell you that I was able to pick up the AM signals of KOAC in arctic Norway.”

Braatveit sent us a recording of what he heard, and there’s no mistaking our litany of OPB stations beamed more than four thousand miles away.

Braatveit, who said we can call him TJ, says the serendipity of the search is what makes collecting radio signals appealing. “It’s the same as for a hunter or a fisher,” said Braatveit, “They know what they want, but they don’t know what they will get.”

Braatveit has been DXing – a hobby to receive, record and identify faraway broadcasts – since the early 1980’s. DX-ers use receivers along with computer software to collect the signals before reaching out to the stations with “reception reports” to verify what they picked up, hence the email he sent us.”

Listen to the full interview via OPB’s SoundCloud:

Tore Johnny Bråtveit also maintains a blog where you can listen to many of his medium wave audio samples. Click here to visit his site.

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