Last weekend I attended the annual meeting of the National Association of Shortwave Broadcasters (NASB). Even though NASB is an organization of private U.S. shortwave stations, the meeting was held at the headquarters of Radio Free Asia, a U.S. government… Leer más ›
We had success last week with our transmissions of Turkish text (now that Turkey is blocking the websites of Deutsche Welle and the Voice of America). I am not aware of any remotely tunable SDRs in Turkey, but reception via receivers in… Leer más ›
Our Russian text experiment last weekend was successful, with the MFSK32 decoding 100% via an SDR in Russia despite the distance from our WINB and WRMI transmitters. This weekend, we will try another language: Turkish. Turkey’s decision to block the Turkish-language online… Leer más ›
This weekend, Shortwave Radiogram will again try some Russian text. So far we have not been able to convince any of the international news organizations that provide content in Russian to transmit text via shortwave on a regular basis. A… Leer más ›
Greetings and good luck to radio amateurs in North America who will be participating in the ARRL Field Day event, June 25 and 26. Let’s hope both space weather and terrestrial weather cooperate for everyone taking part in Field Day…. Leer más ›
Unrelated to Shortwave Radiogram, we had some excitement the early morning of June 14. About 3:00 am, I heard a commotion in the house. It involved our cat Ollie. He was chasing a moth, I assumed. Gazing into the darkness:… Leer más ›
One or more of the WINB transmissions might begin with the text “Welcome to program 186 of Shortwave Radiogram.” The show actually is program 258. This error will not appear in the WRMI transmissions. The repeat broadcast last weekend is… Leer más ›
Due to family activities (again), Shortwave Radiogram program 257 will be broadcast 26-31 May 2022 and repeated 2-7 June. Because of the complexity of uploading the programs to WINB and WRMI, the easiest solution in these situations to repeat a show from… Leer más ›
This weekend, we in the northeast USA will get our first taste of hot weather. Temperatures will be in the mid-90s F, or about 35C. We will quickly find out if our air conditioning keeps the radios and PCs cool… Leer más ›
We return to a new, non-repeat show this weekend. Thanks to Mitch @Plano26 and Al @WD4AH_Al for monitoring the @SWRadiogram Twitter account last weekend. A video of Shortwave Radiogram, program 254, is provided by Scott in Ontario (29 April, 1300 UTC). The… Leer más ›
This weekend’s program (254) will be repeated the following weekend (May 5-10). I will not send the usual weekly email reminder on May 5. Apologies for the missing Shortwave Radiograms that past two Fridays at 1300-1330 UTC on 15770 kHz…. Leer más ›
This weekend’s program (254) will be repeated the following weekend (May 5-10). I will not send the usual weekly email reminder on May 5. Apologies for the missing Shortwave Radiograms that past two Fridays at 1300-1330 UTC on 15770 kHz…. Leer más ›
There were mishaps last weekend with the Friday broadcast. The 1300-1330 UTC transmission was occupied by Brother Stair due to a mistaken entry in WRMI’s automation system. And the 1500-1530 UTC DRM transmission from WINB Pennsylvania on 15750 kHz also… Leer más ›
The Greek government has decided to delay the decision to eliminate shortwave broadcasting from March 31 or May 31. To help the Greek government in its decision, last week Shortwave Radiogram transmitted Greek text, as a demonstration of radio as… Leer más ›
If you have not done so already, please note the new transmission schedule of Shortwave Radiogram, which is listed below. We are no longer broadcasting Saturday 1330-1400 UTC. And the “red-eye” show has been moved from Sunday to Monday, same… Leer más ›
As if last weekend were not confusing enough, with the beginning of the A22 shortwave frequency season, and the European time change, we were surprised by some last-minute changes to WRMI’s times for Shortwave Radiogram. WRMI now has a customer… Leer más ›
This will be complex weekend. On March 27, most of Europe turns clocks ahead for Summer Time. And, same date, the A22 shortwave frequency season begins. Most Shortwave Radiogram frequencies stay with UTC, so for most Europeans, the show will… Leer más ›
This weekend, in North America, the transition to Daylight Savings Time is complete. Political sentiment in North America is in favor of year-round Daylight Time. This would end these confusing weekends. (Although I would prefer year-round standard time.) All of… Leer más ›
The time change process begins this weekend. Most people in North America will move their clocks forward at 0200 local on March 13. For VOA Radiogram, this means Sunday transmissions on WRMI will be one hour later by local time… Leer más ›
Shortwave is in the news. Russia is blocking or restricting news organizations that depend on internet-based media. In Ukraine, news via the internet is increasingly unavailable due to destruction of infrastructure. Radio is attempting to fill filling the gaps, including… Leer más ›
Now that Russia has commenced hostilities against Ukraine, media and communications in, from and to the region will be interesting to observe. The SDRs in eastern Europe have been busy today. We can expect internet disruptions, which should create some… Leer más ›
The 80th anniversary of the Voice of America is celebrated this month. An amateur radio radio special event will take place this weekend, February 19 and 20, involving three stations: W3V at or near the VOA headquarters in Washington. W8O… Leer más ›
Thank you if you tuned in and decoded last weekend’s Ukrainian text, even, if like most of us you have no Ukrainian. The highlight was a 100% decode of the Ukrainian text as received by an SDR in Ukraine. This… Leer más ›
An excellent video describing Shortwave Radiogram is now available at the Tech Minds YouTube account. Thank you Tech Minds! If you tune in the WINB broadcasts, at least the first one Friday at 0030 UTC, you will see it starts with the… Leer más ›
The NASWA Winter SWL Fest will take place March 4 and 5, 2022. This annual meeting covers all aspects of the radio listening hobbies, on all frequencies. This year, again, it will be virtual, via Zoom, due to the pandemic. Information at swlfest.com…. Leer más ›
For days, the weather forecasters were warning us that two inches of snow would arrive here in the Washington DC area during the Thursday morning commute. Two inches may not seem like much if your are used to real snowfalls,… Leer más ›
Another shortwave program is transmitting text and images. Pop Shop Radio from Hope, British Columbia, is including some MFSK32 text in each show. I have added their schedule and contact information to the list below. Please encourage other shortwave broadcasters to try… Leer más ›
You may have read about the snow in the Washington DC area. The heavy wet snow on January 3, with additional freezing after dark, left many vehicles stranded on Interstate 95, the main highway south of Washington, some for 24… Leer más ›
Happy New Year! And thanks for tuning in, decoding, reporting, and keeping in touch in 2021. Last week I was surprised to learn that Shortwave Radiogram has a new, additional transmission, Tuesdays at 1530-1600 UTC on 9955 kHz from WRMI… Leer más ›
Merry Christmas, if you are celebrating. And no matter what you might be celebrating this weekend, try to tune in to an unusually festive edition of Shortwave Radiogram.There will be 18 images in MFSK. Each one will be the same… Leer más ›
I hope you are enjoying the holiday season. Eight of our nine images this weekend will feature the lights of the season, in various parts of the world. It is now the time of year that our Sunday 0800-0830 UTC… Leer más ›
The autumn leaves have almost all fallen here. The leaves have been raked to the street, where the county vacuum truck will pick them up eventually. That’s the event that indicates the winter has arrived in our neighborhood. At least… Leer más ›
Apologies to those of you tuned in last Saturday at 1330 UTC on 15770 kHz. You were detecting a carrier but heard no audio of Shortwave Radiogram or anything else (until 1400 UTC). Jeff White at WRMI responded to my… Leer más ›
Happy Thanksgiving to listeners in the United States. No Thanksgiving is complete without tuning in and decoding Shortwave Radiogram. You can do this Friday at 0030-0100 UTC (Thursday 1930 EST, 1830 CST, 1730 MST, 1630 PST) on 9265 kHz from… Leer más ›
One more reminder that WRMI (on its frequencies used for Shortwave Radiogram) has, since the North American time changed, stayed with UTC for its program schedule. So, for most of Europe and North America, Shortwave Radiogram is one hour earlier… Leer más ›
The autumn (Northern Hemisphere) time changes are now complete. The WRMI schedule on the frequencies used for Shortwave Radiogram stays with UTC, so the local time will be one hour earlier. WINB’s schedule stays with Eastern Time, so local times… Leer más ›
Most of North America will move clocks back one hour on November 7. Europe did its time change last weekend. (One of our news item this week is about what we in North America call “daylight saving time.”) On the… Leer más ›
If you are participating in Halloween festivities this weekend, have a good a safe time. This weekend, most of Europe will change clocks back one hour. This Sunday (31 October), transmissions via WRMI will be one hour earlier by European… Leer más ›
This weekend’s Shortwave Radiogram was almost a replay of last week’s Shortwave Radiogram. The hard disk drive on my PC is in the process of failing, working only intermittently, and triggering “S.M.A.R.T. status bad” warnings on boot-up. Fortunately, Windows 10… Leer más ›
While searching for images to use on this weekend’s show, there were certainly plenty of photos of brilliant auroras that occurred on October 11. They were spurred by a solar storm that might have affected your radio reception during the… Leer más ›
If you enjoy decoding images, we will transmit eleven MFSK64 images this weekend. And with shortwave conditions improving, many of these images may look good after you receive them. A video of last weekend’s Shortwave Radiogram (program 224, Friday 1300… Leer más ›
The Vienna Wireless Society, the amateur radio club in Vienna, Virginia, near Washington DC, kindly invited me to speak to their meeting on September 24 about Shortwave Radiogram, including its history, goals and great audience. A video of that presentation… Leer más ›
Autumn has officially begun. October is almost here. Among other changes in the air, shortwave propagation is shifting. Try Shortwave Radiogram times and frequencies that you haven’t tuned in recently. Videos of last weekend’s Shortwave Radiogram (program 222) are provided… Leer más ›
As I type this, our part of northern Virginia is under a flash flood warning. And thunder is rumbling. I should finish this email quickly, because it does not take much around here to bring about a power failure. A… Leer más ›
In last week’s email, I forgot to note the new “winter” frequency of The Mighty KBC, now on 5960 kHz from a transmitter in Germany, Sundays 0000-0200 UTC (Saturday 8 to 10 pm EDT). In addition to the great mix of oldies… Leer más ›
I hope that everyone is OK after Hurricane Ida and its remnants. We hope electricity and other elements of normalcy are restored to Louisiana as soon as possible, although it may take days or weeks. Here in northern Virginia, we… Leer más ›
Between interesting solar conditions and thunderstorms lurking, at least here in North America, it could be an interesting weekend for receiving and decoding the modes on Shortwave Radiogram. A video of last weekend’s Shortwave Radiogram (program 218, Friday 1300 UTC)… Leer más ›
I had to cancel the OFDM-500F transmission planned for this weekend. The mode would not decode correctly from the recordings – both the mp3 and the original Audacity recording. This was a sign that the OFDM-500F would not decode successfully… Leer más ›
Here in the Washington DC area, we have been experiencing a few days or weather that is not too hot and not too humid – very unusual for this time of year. As I type this, I can feel the… Leer más ›
This reminder that you can see results, including decoded images, of Shortwave Radiogram listeners at the Twitter account @SWRadiogram. If you are not on Twitter, you can visit http://twitter.com/swradiogram and scroll down. A video of last weekend’s Shortwave Radiogram (program 214, Friday… Leer más ›
Last weekend’s broadcast (program 213) ended with the painting “Usonian View” by Michelle Lewis. Here is the painting as received by Pete Brunelli in Rhode Island, as included in Pete’s blog post about last weekend’s show … I selected this painting because… Leer más ›
Thanks to everyone who reported on last week’s test of gaps and no gaps before the image headers. No prominent pattern emerged during my first look at the results, but I need to do a more systematic analysis. My usual… Leer más ›
Last week (program 211), at the suggestion of Tobias in Germany, we eliminated the short (about 0.6 second) gap between the text introduction and the image itself. This seemed to result in fewer failed image due to missed headers. Why… Leer más ›
Shortwave Radiogram listeners have kindly offered suggestions for experiments with our digital modes. Tobias in Germany suggests that eliminating the brief silence (about 0.6 second). between the text introduction of an MFSK image and the image transmission, can reduce or… Leer más ›
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