We can claim success with last week’s transmission of Russian, especially because it was received successfully via SDRs in Russia. This was during two transmissions, including Sunday 2330. Videos of last weekend’s Shortwave Radiogram (program 208) are provided by Scott in Ontario (Friday… Leer más ›

One change to our transmission schedule take effect this weekend: The Saturday (Friday in the Americas) broadcast at 0000-0030 UTC on 9955 kHz is no longer available. We hope we can return to 9955 in the future, because this frequency… Leer más ›

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 ›

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 ›

I hope you are not exhausted from last weekend’s celebration of the 200th program of the Shortwave Radiogram series. Thanks for tuning in and decoding our somewhat special program. A very interesting addition to program 200 is a special Ham-DRM… Leer más ›

Last week’s experiment with text in the Burmese languages went well. It seems the Burmese was decoded successfully just about everywhere – except Myanmar. But, then, we don’t have any transmitters with good reception in Southeast Asia. It was decoded in… 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 ›

This weekend begins the dreaded seasonal changing of the clocks. Most of North America will move clocks forward one hour at 2:00 am local time on Sunday. On the frequencies used by WRMI for Shortwave Radiogram on Sunday, the UTC… 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 ›

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 ›

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 ›

Reception of Shortwave Radiogram was generally good last weekend. Thanks for all you reports. We in the US Atlantic seaboard had unusually good reception on 15770 kHz on 12 December after the usual difficult reception the day before. For listeners… 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, 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 ›

  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 ›

Last week’s experiment with Olivia 32-1000 at 2000 Hz produced several
examples from listeners of the Olivia 32-1000 succeeding when the MFSK32
and MFSK64 text mostly failed and my voice introduction was generally
inaudible

  Last week’s experiment with MFSK16 produced some successful decodes when the MFSK32 and MFSK64 text was less than 100%. I had a couple examples on 15770 kHz from WRMI Florida using SDRs in Russia and Ukraine. For some reason,… Leer más ›

  Last weekend’s excerpt of Hungarian text from the revived RFE/RL Hungarian Service was received and decoded successfully all over the world, including all the diacritics. Here is an example as transmitted from Florida and received in, appropriately, Hungary. Videos… Leer más ›

  This weekend (5-6 September), The Mighty KBC moves to its winter frequency of 5960 kHz (replacing 9925 kHz), for its transmission from Nauen, Germany to North America, Sunday 0000-0200 UTC (Saturday 8-10 pm EDT). A minute of MFSK64 is… Leer más ›

  Last weekend’s experiment with Belarusian text from RFE/RL was generally successful. It was also timely, given the interdiction of the internet in Belarus. This tweet showing distant reception of the Belarusian text using simple equipment generated much interest.  For… Leer más ›

  During last weekend’s Shortwave Radiogram, there were several examples of the MFSK16 text successfully decoding under difficult conditions. You can decode from this reception in Russia on 15770 kHz from WRMI Florida. See also my tweet about decoding the… Leer más ›

Typical summer weather here, but even more so. Many consecutive days of temperatures above 90F, or 32C. And several days above 95F, or 25C.These hot days are often capped in the late afternoon or early evening with a rollicking thunderstorm…. Leer más ›

In our part of the world, summer weather is here. We usually keep the air conditioning off as long as possible, but, finally, it was necessary today. Upstairs, where I produce Shortwave Radiogram, the effort of the AC is, at… Leer más ›

As a retired bureaucrat, I prefer to play radio. But occasionally I get involved in the debate about US international broadcasting, as in my recent opinion piece in The Hill. It’s a sequel to another piece in The Hill back… Leer más ›