Tag Archives: VOA Radiogram

Radio World: The evolution of shortwave radio

Panasonic-RF-2200-1

Many thanks to SWLing Post contributor, Richard Langley, who shares the following article by James Careless in Radio World Magazine.

The article includes interviews with Andy Sennitt, Kim Andrew Elliott, Nigel Fry,  and even yours truly. The following is a short excerpt taken from the introduction of the article:

(Source: Radio World)

OTTAWA, Ontario — With the advent of radio in the 20th century, the shortwave band (1710–30,000 kHz) soon became a hotbed of long-distance radio broadcasting. Used primarily by state-run international broadcasters, plus ham radio operators and ship-to-shore radio communications, the shortwave band was prized due to its astoundingly broad reach.

That reach was — and is still — made possible by the tendency of ground-based shortwave radio transmissions to bounce off the ionosphere and back to earth; allowing shortwave broadcasts to “hop” repeatedly, increasing a broadcast’s range while minimizing its decay.

[…]At the height of the Cold War, the shortwave bands were packed with content as the Voice of America and West Germany’s Deutsche Welle (Voice of Germany) traded ideological punches with Radio Moscow and East Germany’s Radio Berlin International. This is because analog shortwave radio broadcasting was the only way for both sides to make their political cases cross international borders: There was no satellite TV, let alone any internet.

Read the full, in-depth article on the Radio World website…

This article is well worth reading and one of the more in-depth pieces I’ve seen in a trade publication or news site recently.

I should add that I completely agree with James Careless’ conclusion:

“[T]he research that went into this article suggests that the shortwave band is sufficiently alive to be still evolving.”

The fact is, the shortwave landscape is not what used to be in the Cold War. Many of those big voices have left the scene and, in the process, left the door open to others.

The shortwaves are a dynamic communications space that continues to evolve.

That’s why I keep listening.

Want to read more about the future of shortwave radio? Click here to read Does Shortwave Radio Have a Future?

There’s a pattern in that noise!

Digital-Image-VOA-Radiogram

Many thanks to SWLing Post contributor, @K7al_L3afta, who just shared the image (above) and noted, on Twitter:

“I just discovered the noise at the start of [the VOA Radiogram has] a purpose!” 

That’s a brilliant discovery!

Click here to learn about the VOA Radiogram.

Click here to follow @K7al_L3afta on Twitter.

Update: German communications regulator to allow AM digital modes

FLdigi-VOARadiogram

As a follow-up to a previous post, many thanks to several SWLing Post readers who noted this news on the VOA Radiogram website:

The German communications regulator Bundesnetzagentur has changed its mind about allowing digital modes on shortwave broadcast transmitters in Germany. Apparently BNetzA thought that Channel 292 was transmitting the text and images in single sideband (SSB), which is how amateurs, military, etc, transmit the digital modes. Now that they know that the MFSK32 and other modes are sent as program audio on an analogue amplitude-modulation shortwave transmitter, their objections were withdrawn.  (It’s similar to A2A modulated CW.)

BNetzA prefers that the term MFSK32 not be used to describe these broadcasts, but we have to specify the mode so that you can set Fldigi or other decoding software to the correct mode. In any case, the weekly MFSK32 transmission will resume on The Mighty KBC, and DigiDX will return to Channel 292.

Meanwhile, VOA Radiogram this weekend will be all MFSK32 except for the transmission schedule in Olivia 64-2000 under the closing music.                       

German regulators prohibit digital modes on broadcast bands

DigiDX

(Source: Kim Elliott via Richard Langley)

VOA Radiogram, 2-3 April 2016: BNetzA sagt nein!

New this weekend is the elimination of the digital text modes from shortwave transmitters in Germany.

The German regulator Bundesnetzagentur has ruled that the digital modes are not allowed in the broadcast bands. Because of this, there will be no MFSK32 on The Mighty KBC this weekend, because it uses a transmitter in Nauen, Germany. And, for the time being, there will be no DigiDX MFSK broadcasts on Channel 292, 6070 kHz, and Radio 700, 3985 kHz.

Listeners in Germany might want to note these arguments for the digital modes on the shortwave broadcast bands:
1) It is broadcasting, not point-to-point communication.
2) It can be received on any shortwave radio, even inexpensive portables with no SSB capability. (Software is required to decode the text and images, but this can be included in future shortwave radios.)
3) DRM is legal on the shortwave broadcast bands, and DRM can transmit text and images.
4) Text and images via analog radio requires less spectrum (bandwidth) than DRM.
5) Text and images via analog radio are a useful new application for underutilized shortwave transmitters and frequencies.
6) Text and images via analog radio extend the range of a shortwave transmitter, resulting in accurate content in conditions where voice transmissions may be unintelligible.
7) Digital modes via shortwave can be a useful alternative when the Internet is not available due to disasters or to net censorship by dictators.

On the same note, SWLing Post contributor, Harald Kuhl, also comments with a news release from DigiDX:

“DigiDX transmissions via Channel 292 (6070kHz) and suspended until further notice. This is due to action by the German regulator Bundesnetzagentur against digital mode transmissions and is beyond our control. Broadcasts via WRMI will continue and we hope to find another outlet to use for transmissions to Europe.”

[later:]·

“Good news – Thanks to Jeff White we have another frequency for this Sunday’s broadcast which should be better for Europe. 15770kHz at 2130. Please can anyone in Europe, North America and elsewhere please send reception reports to reports@digidx.uk for this extra broadcast.”

Sources: DigiDX website & FB

World Radio Day 2016

fb banner greenFebruary 13th is World Radio Day, a day “to remember the unique power of radio to touch lives and bring people together across every corner of the globe,” as UNESCO reminds us. At the SWLing Post, we get it: shortwave radio listeners understand the unique power of information unhindered by borders, censors, or subscription fees, as supplied by radio.

This year, the UNESCO theme for World Radio Day is a worthy one: “Radio in Times of Emergency and Disaster.”

And here are just a few ways you can celebrate World Radio Day 2016…

Ears To Our World (ETOW)

GSM Bohnso School, Cameroon (Photo courtesy of ETOW partner, EduCare Africa)

GSM Bohnso School, Cameroon (Photo courtesy of ETOW partner, EduCare Africa)

Of course, at my non-profit Ears To Our World, we celebrate the unique power of radio everyday. While we use a variety of technologies in rural and remote communities, radio still plays a central role since it’s such an accessible technology.

In 2014 and 2015, for example, we distributed Sony AM/FM radios that gave children in Sierra Leone the opportunity to listen to over-the-air classes while their school system was shut down due to Ebola.

Powered by this success, we’re now in the process of putting together radio projects for rural, off-the-grid communities in Haiti, Cameroon, and Kenya, where children and their families need the education and information radio can provide.

If you would like to help, please consider a donation of any amount.  This is unquestionably a meaningful way to give the gift of radio, as well as education.

Amateur Radio

The Phoenix Amateur Radio Club will celebrate World Radio Day on the 13th and 14th of February with on-air shortwave activities, as a key part of the club’s ongoing British Scientists Commemorations.  This sounds like an enjoyable way to honor the day as well as the contributions of British scientists.

Click here for more info.

Radio Romania InternationalRRI-RadioRomaniaInternational

Radio Romania issues the following fun invitation:

On World Radio Day 2016, we invite you, dear friends, to send us short recorded messages on this [year’s] topic, by e-mail, as audio-attachments, at engl@rri.ro. You can also send us short written messages on the importance of radio in times of disaster by e-mail or…post them on RRI’s Facebook page, on Google+, LinkedIn and Tumblr.

The most interesting texts and audio messages will be included in a special program on RRI, around February 13th, 2016.

Also, if you have royalty-free personal photos illustrative of the role played by radio in your life, or… the role of radio in times of emergency and disaster, please send them to us in electronic format, accompanied by the necessary explanations, in order to create a photo gallery on RRI’s website and to post them on our social network profiles.
Click here for the full article.

VOARadioGramVOA Radiogram

VOA Radiogram will honor World Radio Day with text and images sent via shortwave radio; you may enjoy receiving this fun “coded” message:

Old shortwave, medium wave, and longwave transmitters can be used to transmit text and images. This can be useful when the Internet is not available for any reason.

VOA Radiogram, an experimental Voice of America radio gram, transmits text and images via a 50-year-old shortwave transmitter located in North Carolina. VOA Radiogram during the weekend on 13-14 February will include a mention of World Radio Day. Receive VOA Radiogram on any shortwave radio, patch the audio into a PC or Android device using software such as Fldigi from w1hkj.com.

VOA Radiogram transmission schedule
(all days and times UTC):

  • Sat 0930-1000 5865 kHz
  • Sat 1600-1630 17580 kHz
  • Sun 0230-0300 5745 kHz
  • Sun 1930-2000 15670 kHz

All via the Edward R. Murrow transmitting station in North Carolina.

Want the full WRD events list?

There are dozens of World Radio Day events happening around the world.  For a full list of registered events, check out the World Radio Day website.

Here’s to WRD 2016!  Enjoy!

How will you celebrate World Radio Day 2016?