Reception in Europe was rather challenging last week, and during recent weeks, both on 15770 and 7780 kHz. Otherwise, results were good from most part of the world. Our Spanish-language news item decoded well in South Australia, Japan, Alaska and… Leer más ›

Shortwave Radiogram received some publicity on the May 7th edition of Amateur Radio Newsline. The audio and text are available here and the video version here. Thanks to Benn Kobb, AK4AV, for presenting the report. Videos of last weekend’s Shortwave Radiogram (program 203)… Leer más ›

If you read this soon enough, you might be able to receive and decode SSTV (Robot36) transmissions on shortwave (HF) in the narrow FM mode from a site in Russia. These will take place May 7 at 0800-0900 and 1300-1400… Leer más ›

Our first round of experiments with HamDRM is now complete. Thanks to Daz Man in Australia for converting our program 200 to HamDRM. When it succeeded, the result was the text of the program in html, with perfect images embedded.  DRM is fussy about the quality… Leer más ›

So this weekend we reach the milestone – or kilometrestone – of 200 programs. Thank you for tuning in and decoding, for your reports and interest. These have kept Shortwave Radiogram going since it succeeded VOA Radiogram in the summer… Leer más ›

 This Sunday, 28 March, begins the change of clocks to summer time in most of Europe. Because our transmissions on Sunday remain at the same UTC time, most European listeners will hear them one hour later by local time. Shortwave… Leer más ›

Last weekend’s experiment with Khmer text was usually successful. There were examples in which the MFSK64 English decoded perfectly, but the Khmer followed it showed some errors. This is not too surprising given that printing the Khmer seems a rather… Leer más ›

February 13 is UNESCO’s World Radio Day. Please don’t get carried away in your celebrations! I’m pleased to see World Radio Day focusing more on radio this year. In recent years it devolved to something more like “world mobile phone… Leer más ›

I discovered last week that Shortwave Radiogram has a new transmission via WRMI on 9955 kHz.  It’s Saturday at 0100-0130 UTC (Friday evening in the Americas) on 9955 kHz. The 9955 kHz frequency is directed to Latin America, but reception… Leer más ›

The word “blustery” was created for days like we are having today in the Washington DC area. It’s below freezing with gusts that sahke the house. At least my wire antennas are still in the air. And I hope electricity… Leer más ›

Here in Washington DC area, Inauguration Day (January 20) passed without incident. I monitored the local 2-meter repeaters for “situation” reports, but, fortunately, there were no situations to report. Last weekend’s reception provided more adventures in winter (or summer, depending… Leer más ›

Mid-winter (in the Northern Hemisphere) has created several opportunities for good shortwave reception – and some frequencies that are impossible to hear, depending on your location. You can see listeners’ results at Twitter @SWRadiogram, or if you don’t have a… Leer más ›

What better way to bring in the new year 2021 than decoding the modes on Shortwave Radiogram? Thank you for your friendship and support, and for tuning in and decoding, during 2020. May the new year bring less virus and… Leer más ›

Hello friends, Because of  increased solar activity, and because of conditions generally during these months near the solstice, reception and decoding will be interesting in the next few weeks. For example, the 15770 kHz transmissions, directed to Europe, might be… Leer más ›

Hello friends, Happy Thanksgiving to listeners in the USA. I’m thankful for the great global group of radio enthusiasts who tune in, decode, and keep in touch. Last week I mentioned that the Sunday 0800-0830 UTC broadcast (the red-eye) on… Leer más ›

Hello friends, Is anyone using, or attempting to use, Fldigi with the MacOS Big Sur? John in Texas, who reports every week via email, writes: “just upgraded to Apple’s new OS Big Sur 11.0.1 and FLDigi seems to communicate with… Leer más ›

  During the past two weekends, we saw a few examples (including this one) of the new MFSK wide modes providing a improvement over the conventional MFSK32 and MFSK64. While the tests were mostly inconclusive, we did learn about the… Leer más ›

  With the winter time change now fully in effect, please note that broadcasts of Shortwave Radiogram from WRMI Florida stay with their UTC times, so they are one hour earlier by local time in most of North America and… Leer más ›

In this note, we will discuss 1) the winter time changes and 2) this weekend’s experiment with the new MFSK wide modes. Winter time changes. By now, most of Europe has turned clocks back one hour for “winter” time. And… Leer más ›