Category Archives: Shortwave Radio

Frequency coordination news and IRDR updates

Many thanks to SWLing Post contributor, Alan Hughes, who shares this article by WRMI’s Jeff White in Radio World magazine. Besides covering updates in the A19 broadcast season, and Radio Exterior de España’s increased broadcasts, Jeff notes frequencies and updates for the International Radio for Disaster Relief initiative.

For more information about the IRDR, check out the information below taken from this page on the HFCC website:

International Radio for Disaster Relief (IRDR)
Humanitarian Aspects of HFCC Activities

From its infancy since 1920s shortwave radio has been associated with its potential of being a communication tool in emergencies. This use of shortwave radio is still very much present among amateur radio enthusiasts for example, who discovered its long distance properties early in the twentieth century. Amateur radio provides a means of communication on shortwaves and other frequencies “when all else fails”. This role of amateur radio is well recognised, valued and appreciated both by the public and by the world institutions managing and regulating the use of the radio spectrum.

In contrast the huge technical potential of international shortwave broadcasting that operates transmitter facilities tens, or hundred times, more powerful than those of amateur radio, remains almost unused in emergencies. At the moment when local and even regional communication and information networks are needed most, they are destroyed or overloaded and the population suffers from an information blackout. Shortwave radio is capable of remaining the only source of information.

Although the life-saving role of radio broadcasting is widely recognised by the public, and confirmed by surveys conducted after the recent disasters – and even acknowledged by world leaders – no concrete projects have been ever designed and no regulatory framework has been developed.

That is why the HFCC – International Broadcasting Delivery in co-operation with the Arab States and Asia-Pacific broadcasting unions are working on an International Radio for Disaster Relief (IRDR) project that is based on the system of online co-ordination of frequencies managed by the HFCC in accordance with International Radio Regulations.

The HFCC is aware of the humanitarian aspects of international broadcasting. It pointed out in 2012 – as the UNESCO partner for the preparation of the World Radio Day – that terrestrial shortwave radio in particular is still considered as a powerful communication and information tool during emergency situations. Read more >>

Receivers are inexpensive and require no access fees. Shortwave radio is important for people living in remote and isolated regions of the world. It reaches across the digital divide to the most disadvantaged and marginalised societies. This is also in keeping with the Declaration and Action Plan of the World Summit on the Information Society.

The annual edition of the World Disasters Report of the International Red Cross and Red Crescent Societies (IFRC) issued in October 2013 stressed again that with only 6 percent of people in low-income countries using the internet in 2011 the digital divide is still stark, and access to low cost media technology is really the key.

The HFCC is a strong advocate for incorporating terrestrial broadcasting permanently on the disaster risk reduction agendas of the ITU and other UN agencies and institutions. It submitted two documents for the ITU-R Working Party 6A November 2013 meeting:

HFCC – The Importance of Terrestrial radio in International Broadcasting
HFCC – The International Radio for Disaster Relief Project

Both documents are annexes in Section 8 of the ITU-R Study Group 6 Report BT.2266 “Broadcasting for public warning, disaster mitigation and relief”. The report can be downloaded via this link.

A workshop was held during the November 2013 meeting addressing these issues. The web site of the Emergency Broadcasting Workshop can be accessed here. The web site also contains copies of all the presentations that were made at the workshop, and a Video interview with Christoph Dosch, Chairman of ITU-R Study Group 6 (Broadcasting service)

The HFCC has applied for membership in the CDAC (Communicating with Disaster Affected Communities) Network in keeping with the conclusion of the debate on emergency communication during the Bratislava B13 Conference. Read more >>

The HFCC is staying in touch with the Information and Communication Sector of the UNESCO agency on the preparation of the World Radio Days that are celebrated each year on February 13th.

Humanitarian aspects of terrestrial broadcasting were also on the agenda of the Global Kuala Lumpur conference in January 2014. Read Opening Remarks.

Updates from Radio Bulgaria

Many thanks to SWLing Post contributor, David Iurescia (LW4DAF), who shares the following:

I’m sending you two interesting articles from the renewed website of Radio Bulgaria:

The Bulgarian National Radio has changed its home four times (01/25/19):

Many attempts have been made to tell the story of the Bulgarian National Radio but usually, in an effort to present a concise version, we fail to mention some curious details that would sparkle the interest of anyone keen on the history of this country. Over the course of its existence, the Bulgarian National Radio has resisted many changes that transformed Bulgaria over the past eight decades.

What is considered to be the official start of radio broadcasting in Bulgaria? It happened in the remote 1929 and consisted in the construction of a 60-watt radio transmitter by a group of engineers. The desire of the enthusiastic members of the radio amateurs club called Rodno Radio (Native Radio) to create a radio program was supported by the state authorities, which allowed them to use a small building on the corner of the central Sofia streets Moskovska and Benkovski.

Soon, however, it became clear that the available equipment was insufficient to reach a larger audience, and a team of local engineers took up the challenging task to build a more powerful transmitter. Another problem arose as the people working on the radio programs increased and the building soon turned out to be too small to accommodate all. Therefore, with the permission of the state, the amateurs moved and occupied an entire floor of a building on 19 Moskovska Street. After radio broadcasting was made a state monopoly with the decree of Tsar Boris III in 1935, the Bulgarian radio began developing at a rapid pace. In addition to the Bulgarian language broadcasts, the year 1936 saw the start of overseas emissions – first in Esperanto, and several months later, also in French, German, English and Italian, the foreign service department of the radio known today as Radio Bulgaria. […]

Read the full story at Radio Bulgaria.

BNR marks its 84 the birthday and 90 years since first radio broadcast in Bulgaria (01/25/19):

Radio Bulgaria reaches users in more than 150 countries through its internet pages in Bulgarian and nine foreign languages, which is an excellent achievement, Boyko Stankushev who works as analysts at the Programme Department of the Bulgarian National Radio pointed out.

Highest number of people using Radio Bulgaria’s web sites is registered in Germany. The users in North Rhine-Westphalia, Bavaria, Baden-Württemberg and Hessen are most active. In the United Kingdom highest number of users is registered in London, followed by Manchester-apparently the people living in these two British cities show specific interest in the information published on the web sites of Radio Bulgaria’s foreign language sections. When it comes to Bulgaria’s neighboring countries Turkey is the undisputed leader in terms of the number of visitors in Radio Bulgaria’s site. I would underline that many people in this country visit the Bulgarian pages of the Bulgarian National Radio, including the Bulgarian web page of Radio Bulgaria. Istanbul is the leader in this ranking, followed by Ankara, Bursa and Izmir. Radio Bulgaria has users in some smaller Turkish towns such as Mu?la and Tekirda?. I believe that the Bulgarians studying at the local universities are regular users of Radio Bulgaria’s content and read both in Bulgarian and Turkish.

In 2018 the interest in Radio Bulgaria’s content by US users increased. The number of visits in publications in English was very high, followed by visits in Radio Bulgaria’s Greek and Spanish page from North and Latin America. In the USA the highest number of visits was registered in Illinois, which is not surprising, because of the huge Bulgarian community living in Chicago. In California huge internet activity was registered in areas with large technological parks and highly-educated people, i.e. we are talking in this case about a very high-quality audience.[…]

Click here to continue reading this full article at Radio Bulgaria.

Thank you, David!

Your message prompted me to find a recording I made of the final Radio Bulgaria broadcast on shortwave which, coincidentally, happened seven years ago today!

Click here to listen to Radio Bulgaria’s final shortwave broadcast.

Sony ICF-SW100: Whip vs. DE31MS active vs. Sony AN-LP1

Click here to view on YouTube.

Guest Post by: Troy Riedel

It’s been a while since I posted a video on my YouTube Channel (but I’ve gotten the urge to make several more videos as I’ve been recently comparing my equipment – 16 portable receivers & many antennas).

I try to tune in to Radio Prague via WRMI on many weekday East Coast USA mornings from 1300-1325 UTC. Yesterday I encountered bad propagation but today was much better.  The video linked to this post is from today – 30JAN2019 recorded around 1310 UTC.

[Sorry, no tripod for this one]

People often ask, “are amplified antennas helpful” – as evidenced by this post from Thomas from a few years ago.

Without repeating the debate, just take a look at this one example.  As stated, reception was pretty good today off the little whip – but – there is an improvement using an amplified antenna.  My question: is there a difference between the two amplified antennas?  And if so, is the difference worth the price?

My TG34 is a clone of the DE31MS – purchased from Tquchina Radio & Component (ebay user: Tao Qu … they used to have an eBay store “Sino Radios” if I recall, but they stopped selling on eBay when the Post started cracking down on shipment of batteries – I actually exchanged an email with a frustrated Tao Qu when they closed the store).

I paid about $21 if I recall for my TG34 (the DE31MS is available today on eBay for as little as $17.28).  I paid over $100 for the Sony AN-LP1 (out of production now and can be listed for as high as $300 on eBay).  So … $21 versus “over $100”.  Is there a difference – and if so – is it 5x the difference – 5x better?!

You be the judge.

P.S. Just a quick slightly over 1-minute video recorded inside my house (sitting in my breakfast nook) … typically “okay” reception but not my usual Listening Post.

Emilio’s favorite scene from “Never Cry Wolf”

Many thanks to SWLing Post contributor, Emilio Ruiz, who writes:

I [note you] have published movies scenes with radios and I remember one of my favorite movies about nature, science, silence, wolves and Inuit culture called “Never Cry Wolf” I’m sharing with you and all readers of SWLing Post blog a radio (I don’t know what brand is, I think is military radio) appear in Never Cry Wolf movie.

I love this scene because the heterodyne sound is a particular sound that drives us crazy to everyone who loves radio!! jaja 😛

The video was extracted from the original Beta format movie, sorry for
the quality.

Thank you for sharing, Emilio!

That heterodyne sound leads me to believe they obtained it using a regenerative receiver. I’ve heard that squeal so many times tuning regen receivers!

I’ll add this post to our ever growing archive of radios in film!

Fascinating episode of The Antarctic Sun podcast

McMurdo Station, Antarctica. (Source: USAP.gov)

Many thanks to SWLing Post contributor, Justin Moore (KE8COY), who shares the following:

[T]here is an interesting podcast] that I’m sure you would like as well as anyone with an interest in radio might enjoy, especially in this weather.

It’s the Antarctic Sun podcast and this episode is about the communications staff at McMurdo Station, the MacOps department, and the things they do to stay in touch with scientists, researchers, and workers in the field, using their radio communications skills to keep everyone safe.

Listening to this is great while there is still snow on the ground, as there is up here in Cincinnati, and may be a bit of inspiration for ham radio folks who participate in Winter Field Day.

My favorite part is when they talk about using HF to sing Christmas carols to each other at the different Antarctic camps and stations.

[Here’s the description of the episode:]

Communications operator Rebecca Ricards (foreground) calls up field camp information at the MacOps control console. Josh Young looks on. (Source: NSF)

“Antarctica is a vast and potentially treacherous continent and the safety of researchers and support staff is of the utmost concern for everyone. Just knowing what’s happening is a critical first step towards keeping everyone safe, but keeping the lines of communication open between the station and people working in the field requires a lot of effort. It takes a multitude of high frequency and very high frequency radios, a veritable forest of signal repeaters, a constellation of satellite phones and more to keep tabs on everyone.

All of those communication systems are routed through the nerve center of the station, MacOps. Short for “McMurdo Operations,” it’s the central communications hub where operators keep tabs on everyone off the station. Communications operators are in almost constant contact with the numerous field camps and sea ice groups, ready to send in search and rescue teams in an emergency or just say a friendly “hello” after a long hard day of work in a remote field camp.”

Click here to download the podcast.

Thanks for taking the time to share this, Justin! This episode combines two things that fascinate me: radio and Antarctica! Certainly a win-win. I’ve also now subscribed to this podcast–thanks again!

Click here for more details at The Antarctic Sun Podcast.


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Shortwave is an alternative source of news while Internet and phone service to the Kingdom of Tonga are cut

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

Internet and phone service between the Kingdom of Tonga and the outside world was disabled after an undersea cable was cut between Tonga and Fiji.

(Source: Radio New Zealand)

“Tonga’s submarine cable to Fiji was severed on Sunday night, meaning there were no phone or internet services for several days.

Interim satellite links have since been provided but the bandwidth is nowhere near what Tonga needs.

The deputy chief executive of Tonga Communications Corporation, Sione Veikoso, said the company is now providing extra capacity.

[F]ull restoration may be possible within a week but it could take a month.”

Speaking on the Radio New Zealand Pacific program Dateline Pacific (evening edition for 25 January 2019) deputy chief executive of Tonga Communications Corporation, Sione Veikoso said that two cables were cut. Click here to listen to the audio.

I heard the RNZ Dateline Pacific program on RNZI (shortwave), 9700 kHz at 11:13 UTC 1-25-2019.

Thanks for sharing, Dan. Yes, in times like these, shortwave radio makes for an easy, accessible way to get information directly from the source. Radio New Zealand International should be an easy catch in Tonga.

I’m filing this under the tag: Why shortwave radio?

Are government shutdowns a potential haven for pirate radio stations?

Photo by Michael Maasen

SWLing Post Bill Patalon sent me this piece from the ARRL stating that amateur radio applications have been on hold at the FCC as most of the agency has been closed in the US government shutdown. It appears the government will reopen now, at least for the next three weeks.

Thinking about the closure of the FCC and its effect on licensed operators, also made me think about unlicensed radio operators: a.k.a. pirate radio stations.

Are government shutdowns a potential broadcast opportunity for pirates that might not otherwise take to the air?

I’m curious if anyone noted new shortwave or FM pirate stations during the US government shutdown. Did the respite from FCC enforcement bring anyone out of the woodwork?  Please comment!

PS: Can you do us a favor? In comments, please stay on topic (radio) and refrain from political arguments. Many of us appreciate the SWLing Post as a refuge from the toxic back-and-forth prevalent on so many other sites. If you would like to engage in political discourse, please check out Reddit. Thank you!