Tag Archives: VOK

Mark explores North Korean DRM broadcasts over shortwave

In the last issue of Radio Waves, we featured an article by Hans Johnson at Red Tech about DRM broadcasts originating in North Korea. This caused me to question exactly what these DRM broadcasts were (Voice of Korea?) and why they’ve chosen to use DRM as the mode.

Of course, who really knows? North Korea isn’t public about any of their activities, so we rely on information from enthusiasts who have taken it upon themselves to investigate and confirm. Johnson assumed, “The most likely use [of DRM] would be as an audio feed to other stations and sites.” He used Radio New Zealand’s DRM service as an example, but I felt this to be unlikely with North Korea who doesn’t seem to use FM, MW, or shortwave relay sites in other parts of the world.

Fortunately, our friend Mark Fahey is an expert on North Korean media, broadcasts, and propaganda. Mark is the author and curator of the dynamic Behind The Curtain project.

I reached out to Mark via text message regarding North Korea’s use of DRM. Here’s what Mark shared with me earlier this week. This roughly follows the string of messages we exchanged.

Mark writes:

[October 3, 2022] I have been turning into the North Korean DRM today on the new reported frequency in the [Red Tech] magazine: 6140kHz, though it’s not VOK, it’s a relay of 819kHz Pyongyang.

This service is called KCBS – Korean Central Broadcasting Service – it’s the main domestic service that is available on MW (a few FM outlets) and domestic SW across North Korea.

I will grab an audio ID off DRM for you at the top of the next hour – 0100 UTC. The DRM broadcast is only running one audio stream. It’s ACC audio 14.56kbps. As for purpose, maybe to feed the national AM relays, but also could be for North Korean ships, etc.

The other DRM frequency of 3205kHz is not on the air at the moment. I will check for it over the next 24hrs etc.

I just recorded the top of the hour. It was going in and out of DRM sync – I will send it now. I will grab a better sample tonight when there is a darkness path. The sun is well up in Pyongyang & Sydney at the moment (Noon Sydney – 10AM North Korea). Here is the Top Of The Hour ID from 10 minutes ago…

KCBS 6140 kHz (October 3, 2022)

I will record the station opening as well tomorrow morning – this domestic service also has an interval signal (the same tune as VOK–the first bars of “The Song (Hymn) of Kim Il Sung”). The opening is at 2000 UTC.

[October 4, 2022] OK here you go: both audio files (one from 6140kHz and the other from 3205kHz) are just from minutes ago as KCBS Pyongyang signed on. The signals go in and out of DRM lock here and this morning 3205kHz was the better–displayed at SNR at 13dB but still the DRM signal was breaking up.

Both DRM transmitters are running the same program: the main MW national service as heard on 819kHz in Pyongyang.

So I’m sure this DRM has nothing to do with the Voice Of Korea and is for domestic purposes.

I actually do not think it has anything to do with feeding remote transmitters as the DPRK has fibre and microwave links already in place for that purpose. I myself think it’s more likely intended for North Korean fishing vessels, navy, merchant shipping etc. But of course, nobody truly knows!

KCBS 3205 kHz (October 4, 2022)

KCBS 6140 kHz (October 4, 2022)

Thank you so much for your recordings and insight, Mark!

As I mentioned, Mark has a massive DPRK audio repository on his website Behind The Curtain. These are recordings you simply can’t find anywhere else, including hours of pristine Pyongyang FM recorded on a CC-Crane Witness Mark personally smuggled into Pyongyang.

In fact, the above photo is the CC Witness in Mark’s hand overlooking central Pyongyang.

Mark told me that the CC Witness was ideal–he used it on a number of content gathering trips to North Korea as it resembled an MP3 player or dictation recorder rather than a radio. Since it wasn’t suspected as being a radio recording device, it passed through the North Korean border each time without incident.

It’s an understatement to say that Mark took a number of risks to gather North Korean media from “Behind the Curtain.” Thank you, again, Mark, for sharing this info about DPRK DRM broadcasts.

Visit Behind the Curtain

Check out numerous recordings from North Korea in Mark’s archive.

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Paul’s recording of “La Voix de la Corée” interval signal and broadcast intro

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Many thanks to SWLing Post contributor, Paul Jamet, who writes:

Hello Thomas,

I hope everything is fine.

To complete Carlos Latuff’s contribution, here is a recording of the French language program of “La Voix de la Corée” made the afternoon of May 30, 2022 at 14h00 UTC on the frequency 13760 kHz with a TECSUN PL-365 connected to a 5m wire antenna of about 5 meters length.

Recording:

I attach the picture of the receiver on an old wall (see above); the screen displays the frequency and the signal characteristics: Signal strength unit: 27 dBu – Signal to Noise Ratio (S/N) unit: 08 dB

The other frequency used at the same time is 15245 kHz but I could not hear anything!

I hope that this information will hold your attention. See you next time. Sincerely yours.

Paul JAMET
Radio Club du Perche :
http://radioclub.perche.free.fr/

Thank you for sharing your recording, Paul!

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Dan discovers a video and photo montage of VOK listeners

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Many thanks to SWLing Post contributor, DanH, who writes:

The YouTube channel Phuong DPRK Daily recently posted a video titled Listeners to Radio “Voice of Korea” in Pictures. This video offers a look at photos of VOK Voice of Korea (DPRK) shortwave listeners. I recognize the voice of one of the VOK newscasters as the narrator of this video. It is interesting to take note of the shortwave receivers shown in the photos as well. This video was also posted on the Voice of Korea website on September 25, 2020.

I listen to the English Language Service of VOK Voice of Korea from my suburban listening post in Northern California, USA. The VOK English language broadcasts beamed to South America usually provide the best reception for me. Here is my most recent reception video of VOK. It was recorded on November 10, 2020.

There are more reception videos of VOK available at my website Willow Slough DX. These videos include newscasts read by the male announcer heard on the photo album video.

Happy SWLing! The shortwave broadcast bands are beginning to improve after the long nadir of solar minimum!

DanH

Thanks for sharing this, Dan!

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“North Korea Resumes DRM Broadcasts”

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(Source: Radio World via Michael Bird)

North Korea has returned to digital radio broadcasting after an absence of nearly two years.

The latest Digital Radio Mondiale (DRM) shortwave transmissions began mid August. The country has had periodic DRM broadcasts for many years.

It appears unclear at this time however whether the current series of transmissions will soon end or be the start of a regular service.

Thus far, all of the latest test transmissions have taken place on 3560 kHz, which is actually allocated for amateur radio use.

According to radio enthusiasts in the region, the signal has been clear and very audible.[…]

Click here to read the full article at Radio World.

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Voice of Korea announces new English language schedule effective March 31, 2019

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Many thanks to SWLing Post contributor, DanH, who writes:

For SWLing Post readers here is a YouTube reception video of VOK announcing a new shortwave schedule for the English Language Service.

Click here to view on YouTube.

The schedule is effective beginning 03:00 UTC, March 31, 2019.

Southeast Asia:

05:00 – 06:00 UTC: 13650 and 15105 kHz

10:00 – 11:00 UTC: 11735 and 13650 kHz

Middle East and Northern Africa:

16:00 – 17:00 UTC: 9890 and 11645 kHz

19:00 – 20:00 UTC: 9875 and 11635 kHz

Southern Africa:

19:00 – 20:00 UTC: 7210, 11910 kHz

Central and South America:

04:00 – 05:00 UTC: 11735, 13760 and 15180 kHz

10:00 – 11:00 UTC: 11710 and 15180 kHz

Good luck if you like chasing VOK!

DanH

Thanks for the tip, DanH!

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Tom’s field portable HF antenna snags VOK’s summit broadcast

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Tom’s field portable car roof HF antenna.

Many thanks to SWLing Post contributor, TomL, who shares a recording he made of the Voice of Korea on June 14, 2018. This English broadcast focuses on the Singapore summit and is, no doubt, historic in its content. [Note that we’ve posted other recordings on the Shortwave Radio Audio Archive.]

TomL notes:

Recorded on my noisy Lenovo laptop, SDRPlay RSP2, and an unamplified 18.5 foot antenna on the roof of my SUV.

I’m most impressed with the quality of his recording–VOK is not the easiest station to snag in the US midwest:

Click here to download the audio recording.

Thank you for sharing, Tom! I love your field portable vertical–obviously, it’s doing a fine job and your car must make for a decent ground plane!

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An unusual 1990s reception report from North Korea

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Many thanks to SWLing Post contributor, Richard Langley, who spotted this fascinating account in The Mayo News:

Michael Commins on his remarkable communication from inside North Korea

THE Korean peninsula dominates world news coverage this week.

[…]Around 1988, after becoming engrossed in the hobby, I also bought the acclaimed Sony 2001D shortwave radio from Padraig Gilmore of Gilmore Electrical in Claremorris. Padraig was a genius when it came to radios and he also had a huge interest in shortwave listening.
I recall listening to the last broadcast of Radio Berlin and tuning in on a weekly basis to some favourite shows on The Voice of America, Radio Netherlands, Radio Havana (still broadcasting on 6000khz), Radio Prague, Radio Moscow (with their powerful transmitters on numerous frequencies), Radio Canada International, HCJB from Quito in Ecuador, Vatican Radio, and a host of the stations from around the world.

[…]On a few occasions, I managed to pick up the English language broadcast of Radio Pyongyang from North Korea (Democratic People’s Republic of Korea). I posted some reception reports to them and got back their radio schedules and QSL cards as well as some cultural material.

One day in the 1990s, I received an extraordinary letter from a person at the international radio station in North Korea. It was smuggled out of the country and posted in Japan. There was no internet and no Facebook back then. Shortwave radio was the only way to get news broadcast across thousands of miles.

Today, for the first time I reveal some of the contents of the letter but am still reluctant to state the date I received the letter (which I wrote on the back of it) … just in case.

Here are some extracts:
“I am writing this letter to tell you we are tired of repeating the same programs all the year round. We may deal with fresh information when we air the news about foreign countries, but when we are told to air radio commentaries we in most cases try to search similar programs we had once aired previously.

“This is the safest way to be faithful to our duty because we are told to quote some phrases from the remarks of our Great Leader Kim II Sung or Dear Leader Kim Jong II whenever we draft the manuscript of the commentaries. This is why we have been repeating the same tones for years.

“No freedom of speech nor of association exists in my country. You will never notice any dark side of our society when you listen to our radio programs.

“The reality of my country is that the people, especially those living outside of Pyongyang are suffering from the severe shortages of food and daily commodities. They are urged to engage in the campaign to take two meals, instead of three meals, a day.

“I don’t think our closed-door policy will last forever, and sometime, in the future and all of a sudden the people will rise up against the government. I think now is the time for the intellectuals to come to the rescue of our fatherland”.

This letter has been kept safe and sound over the years, between the covers of ‘The Moscow Correspondents’, a fine book by Whitman Bassow, former Moscow Bureau Chief of Newsweek, which provides wonderful insights into the USSR over generations.[…]