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@swradiogram / swradiogram.net

Shortwave Radiogram transmits digital text and images on an analog shortwave broadcast transmitter. The program is produced and presented by Dr. Kim Andrew Elliott.

Shortwave Radiogram, 24-30 April 2025 (program 399): Déjà vu, but in a slower mode

This week's show include will be a partial replay of last week's broadcast (program 398). The news about the Digital Radio Mondiale distance learning experiment, as well as our own distance learning demonstration, will be transmitted again, but this time in MFSK32. This includes the image of the triangle. The MFSK32 mode should be even more successful in transmitting educational content in difficult, i.e. common, shortwave conditions. The second news story, in MFSK64, will be about the federal court victory by VOA employees in their struggle to get VOA back on the air. Since I recorded the broadcast, USAGM and Kari Lake, its de facto head, have appealed the ruling. And, except for the triangle, there will be a new set of images. A video of last week's Shortwave Radiogram (program 398) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. H0B0_Radio offers this IQ recording. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 399, 24-30 April 2025, in MFSK modes as noted:  1:46  MFSK32: Program preview  3:06  MFSK32: Digital Radio Mondiale shortwave learning event* 10:12  MFSK64: Judge halts Trump's shutdown of Voice of America 12:46  MFSK64: This week's images 27:42  MFSK32: Closing announcements * Same as last week's DRM story, including the triangle image, but this time in MFSK32 Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Pop Shop Radio in British Columbia received these images and 100% text, 19 April 2025, 0230-0300 UTC, on 9265 kHz from WINB Pennsylvania ...

Shortwave Radiogram, 17-23 April 2025 (program 398): Using shortwave to teach about triangles

The Shortwave Radiogram transmission Fridays at 0530-0600 UTC on 7780 kHz from WRMI Florida has been discontinued. WRMI is now signing off 7780 at 0400 UTC. The 0530 UTC broadcast never did attract many listeners, no doubt due to the inconvenient hour in the Americas. The unique feature of this broadcast is that it was almost always heard well in New Zealand. This is because of the 222º beam heading and the time of day. I should have done a better job of publicizing this transmission among New Zealand amateur radio circles. Digital Radio Mondiale is a system that has been in existence since around the turn of the 21st Century. It provides "FM quality" audio via shortwave -- conditions permitting -- as well as text and "slide" images. Our second news story this week is a DRM Consortium press release about a DRM shortwave teaching broadcast from the transmitter at Woofferton, England, to a school in The Gambia.  I heard the broadcast using a KiwiSDR in southern Spain. The voice audio was good, with a couple of brief dropouts. The Journaline content was "Error: expected NML Code 0x01, got 0x1a". I don't know if this was a problem in the transmission chain, or a quirk of the SDR. In any case, the press release is vague about how the teaching materials, other than the voices of the instructors, reached the students in The Gambia. A shortcoming of DRM is that it voice and other content drop out when signal drop below a certain level, or when interference rises about a certain level. I.e., typical shortwave conditions. The Shortwave Radiogram system of digital modes on an analog carrier has more survivability than DRM. SWRG does not do voice, but we can do text and images. The question is whether the images are clear enough to be useful to students in those distant, isolated places.   The DRM lesson was about triangles, so will also transmit two short paragraphs and an image of a triangle. A video of last week's Shortwave Radiogram (program 397) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. H0b0_Radio offers this IQ file. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 398, 17-23 April 2025, in MFSK modes as noted:  1:43  MFSK32: Program preview  2:57  MFSK32: State Dept closes anti-disinformation office  7:15  MFSK64: Digital Radio Mondiale shortwave learning event* 11:55  MFSK64: This week's images* 27:58  MFSK32: Closing announcements * with images Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Eduardo in Florida used a QFX R-37 multiband radio (about $22), with the TIVAR app, to receive these images 12  April 2025, 0230-0300 UTC, on 9265 kHz from WINB Pennsylvania.

Shortwave Radiogram, 10-16 April 2025 (program 397): Because of our digital modes, that asteroid avoided Earth and may hit the moon instead

This week's Shortwave Radiogram will include another story about the crisis of US international broadcasting. It's from Radio Free Asia about the loss of most of its shortwave and medium wave frequencies, and how they are continuing on a much reduced transmission schedule using what money they have on hand. The situation at RFA and the rest of US international broadcasting may have changed by the time the program 397 transmissions have all completed. I post much of this news at kaedotcom.bsky.social . Some notes about Shortwave Radiogram frequencies: Those of us who were tuned in heard no transmission Friday at 0530-0600 UTC on 7780 kHz from WRMI Florida. I haven't had a chance yet to ask Jeff White at WRMI what happened. When it is on the air, that transmission is almost always heard in New Zealand, and probably in other parts of the southern Pacific region.  Also, please note that the Saturday 2300-2330 UTC broadcast is on three frequencies from WRMI: 7570, 7780 and 9455 kHz. Of the three, 9455 seems to provide the best reception in most parts of the world. Last week, I had fairly good results using an SDR in Australia. A video of last week's Shortwave Radiogram (program 396) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. H0b0_Radio in Washington state offer this IQ recording. Analysis is provided Roger in Germany. Here is the lineup for Shortwave Radiogram, program 397, 10-16 April 2025, in MFSK modes as noted:  1:46  MFSK32: Program preview  3:01  MFSK32: Asteroid briefly threatened Earth but may hit moon  8:11  MFSK64: RFA radio transmissions to China, Tibet halted* 13:03  MFSK64: This week's images* 27:31  MFSK32: Closing announcements * with image(s) Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Sporty Porcupine in coastal Alabama received these images 3 April 2025, 2330-2400 UTC, 9265 kHz from WINB Pennsylvania ...

Shortwave Radiogram, 3-9 April 2025 (program 396): Maybe I can just take a nap and let AI produce the show

This week on Shortwave Radiogram, I violate my own rule against transmitting stories about AI. Artificial intelligence gets so much news and discussion we don't need more from SWRG. But this week's item involves propaganda and disinformation, sufficiently interesting to offset the IE stuff.

Also a story about the debate within the European Union about whether to provide funding for Radio Free Europe/Radio Liberty. Developments concerning this topic are moving quickly, so this news might be overtaken by events by our last transmission on April 9.

My Yaesu transceiver has developed an audio problem, so it will be going back to Yaesu for warranty service. For direct reception (not via an SDR) of the Wednesday 1330-1400 UTC broadcast, 15770 kHz, I swapped in my Sangean ATS-909X receiver. The nice thing about this Sangean receiver is that it has an external antenna jack, and a line-out jack, so that audio is not muted. My new Lenovo small-form-factor PC has a separate mic jack, not just one of those combo ports. I made sure of that when shopping for computers. So by way of a patch cord from the Sangean to the Lenovo, it worked.

There were some errors in the MFSK64 text. I noticed deep fades in the Fldigi waterfall. Probably the Sangean's AGC (assuming it has one) is not as good as my transceiver's AGC. And the images showed some interesting artifacts. Was there weird multipath between WRMI Florida and here in Virginia? Or was it caused by the Sangean and/or the unusual audio connection to Fldigi?

Scott in Ontario, called out on an errand, was unable to provide his usual video this past week. But H0B0_Radio provides this IQ file. You can open it in an SDR for various adjustments. The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 396, 3-9 April 2025, in MFSK modes as noted:  1:44  MFSK32: Program preview (now)  2:56  MFSK32: Russian propaganda outlet leverages AI  6:07  MFSK64: EU Lawmakers Debate Support For RFE/RL* 10:33  MFSK64: This week's images* 28:27  MFSK32: Closing announcements * with image(s) Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Max in Texas received these images 29 March 2025, 2300-2330 UTC, 9455 kHz from WRMI Florida ...

Shortwave Radiogram, 27 March-2 April 2025, program 395: Signs of life in US international broadcasting

President Trump's shutdown of US international broadcasting has generated news, to much and too fast to cover it adequately on Shortwave Radiogram. Some of the USAGM entities are experiencing victories. Radio MartÍ is back in operation via its medium wave transmitter in the Florida Keys, and it might also get some revived shortwave from North Carolina. USAGM turned over funds to RFE/RL for part of March, and now has rescinded its grant termination, for the time being. Radio Free Asia has now brought court action against USAGM, hoping for similar results. Voice of America employees and its director have initiated court actions against USAGM. For news about US international broadcasting, see my Bluesky feed kaedotcom.bsky.social or my X account @kaedotcom -- X.com/kaedotcom. This week's Shortwave Radiogram includes an analysis by a New Zealand scholar about the implications of the closure of VOA and the other entities. Also an item about a survey of American support for public broadcasters PBS and NPR. A video of last week's Shortwave Radiogram (program 394) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. H0b0_Radio offers this useful IQ recording. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 395, 27 March-2 April 2025, in MFSK modes as noted:  1:44  MFSK32: Program preview  2:58  MFSK32: Americans surveyed on PBS/NPR funding*  7:05  MFSK64: Does closing VOA leave void for Russia and China? 12:07  MFSK64: This week's images* 28:19  MFSK32: Closing announcements * with image(s) Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Tobias in Germany emailed these images received 20 March 2025, 2330-2400 UTC, 9265 kHz from WINB Pennsylvania ...

Shortwave Radiogram, 20-26 March 2025 (program 394): News via shortwave about VOA no longer on shortwave

This week, instead of searching for science-related news for this Shortwave Radiogram, I was instead searching for any news and commentary about President Trump's shutdown of the Voice of America and its parent agency US Agency for Global Media. I worked for these organizations for 32 years, until retiring in 2017, so these developments are heavy on my mind. There is plenty of press coverage of this topic, summarized in my bluesky account kaedotcom.bsky.social and X/Twitter feed @kaedotcom. A good overview of events last Saturday are in this NPR piece by David Folkenflik. For this week's Shortwave Radiogram, I chose a statement from Deutsche Welle and France Médias Monde, and an analysis from France 24. There is no news about this from VOA. Their last content was posted March 15. And USAGM transmitting stations seem to be off the air. One report is that power was turned off at the shortwave facility near Greenville, North Carolina. If the air conditioning is not working, mold will quickly form and ruin those excellent transmitters. To cheer things up, many of the images in this week's show are spring flowers. This is the time of year when such photos are in abundance. They transmit well through the murk of shortwave. A video of last week's Shortwave Radiogram (program 393) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 394, 20-26 March 2025, in MFSK modes as noted:  1:47  MFSK32: Program preview  3:01  MFSK32: French, German international broadcasters re USAGM  6:59  MFSK64: France 24 analysis: Trump mutes Voice of America 13:13  MFSK64: This week's images 28:38  MFSK32: Closing announcements Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Images received 15 March 2025, 0230-0300 UTC, 9265 kHz from WINB Pennsylvania, by Ciro in Italy ...

VOA filler music instead of English to Africa, 16 March 2025, 1620 UTC, 15580 kHz from the Botswana relay, monitored via SDR in Kuwait.

At :43 into the recording, the announcement "This program is coming to you from the United States of America."

Shortwave Radiogram, 13-19 March 2025 (program 393): Digital modes ready for comparison with DRM

The North American spring time change is now complete. WINB's schedule stays with Eastern time, so the Shortwave Radiogram broadcasts on WINB are now Thursday 2330-2400 UTC and Saturday 0230-0300 UTC on 9265 kHz -- same local times in most of North America. The only Shortwave Radiogram frequency on WRMI that stays on Eastern time, thus shifting by UTC, is 9955 kHz. SWRG is now Sundays at 1430-1500 UTC on 9955 kHz. All other WRMI frequencies for Shortwave Radiogram stay with UTC, so note changes in your local time. The transmission schedule below reflects the new times. One of the news stories in this week's Shortwave Radiogram is about a planned DRM (Digital Radio Mondiale) portable radio to be made in India. I have been experimenting with and demonstrating DRM since the technology began just after the year 2000. It's great when it works. It eliminates the fading that many people, who are not frequent shortwave listeners, find annoying. Background noise is eliminated. But DRM can tolerate only so much reduction in signal strength, or interference, or noise -- all conditions that are typical on shortwave. If this radio does come to the market, I'm sure several North American shortwave enthusiasts will purchase it. There are no longer any DRM capable shortwave broadcast transmitters in the Western Hemisphere, except for USAGM at Greenville, North Carolina. For the most part, we North Americans will have to receive DRM from European transmitters. I would like to see side-by-side transmissions across the Atlantic of DRM, analog audio, and our Shortwave Radiogram technique of digital text via analog carriers. Let's find out which best copes with the rigors of shortwave propagation. With the internet increasingly blocked, shortwave may find new purpose. A video of last week's Shortwave Radiogram (program 344) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 393, 13-19 March 2025, in MFSK modes as noted:  1:45  MFSK32: Program preview  2:59  MFSK32: A new portable DRM receiver made in India*  7:24  MFSK64: NASA fires chief scientist, and more cuts  9:56  MFSK64: This week's images* 27:39  MFSK32: Closing announcements * with images Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Alan in the UK emailed these images from his reception 12 March 2025, 1330-1400 UTC, 15770 kHz from WRMI Florida. Also pictured are the Shortwave Radiogram signal on 15770 kHz and a data transmission on 15778 kHz.

Shortwave Radiogram, 7-12 March 2025 (program 392): Digital modes received on asteroids from Alpha Centauri

March is here, and time changes are in the air. I think I have written here that I prefer standard time to daylight savings time. However, I think, if time changes are eliminated, it will be daylight time year round. Anyway, for this week's Shortwave Radiogram, the only time change is that Sunday 1530-1600 UTC becomes 1430-1500 UTC on 9955 kHz. This is because WRMI's 9955 schedule stays with Eastern Time. All our other WRMI frequencies stay with their UTC schedule, so, for most North Americans, your local reception times will change after Sunday. This includes Monday 0400-0430 EDT on 5850 kHz and Wednesday 0930-1000 EDT on 15770 kHz. More time changes next week.  A video of last week's Shortwave Radiogram  (program 391) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 392, 7-12 March 2025, in MFSK modes as noted:  1:43  MFSK32: Program preview  2:12  MFSK32: Some Earth's meteors may come from Alpha Centauri  2:54  MFSK64: NASA powers down two Voyager science instruments  9:31  MFSK64: This week's images 27:28  MFSK32: Closing announcements Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

hamstergraf in New Jersey received these images February 28, 2025, 0530-0600 UTC, 7780 kHz from WRMI Florida ...

Shortwave Radiogram, 28 February-5 March 2025 (program 391): Always available for free in any country (where it can be picked up)

Here in northern Virginia, we had a couple of days with spring-like weather, with temperatures up around 65F/18C. I just heard a gust of wind form the west try to nudge our house to the east, so a cool front is moving in. Winter-like temperatures will return Sunday, but only for a day. I am becoming more accustomed to the additional keystrokes and additional operations required by the software that works on my new Windows 11 PC. The newest Audacity seems to use up system memory, requiring a multi-step production process. Eventually I will figure out the best way to do that. Thanks to listeners who emailed helpful advice. A video of last week's Shortwave Radiogram (program 390) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 391, 28 February-5 March 2025, in MFSK modes as noted:  1:47  MFSK32: Program preview  2:57  MFSK32: Most BBC radio will be unavailable internationally  5:32  MFSK64: Radiation at 21 cm key to search for aliens  8:13  MFSK64: This week's images 27:07  MFSK32: Closing announcements Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Pop Shop Radio in British Columbia received these images 24 February 2025, 0800-0830 UTC, 5850 kHz from WRMI Florida ...

Shortwave Radiogram, 21-26 February 2025 (program 390): Digital modes that would be received on Theia if it had not crashed into Earth

Here in northern Virginia, we have just endured two days of high temperatures below freezing. This is unusual for us, but typical for many of you living farther north. Tomorrow, our typical winter weather, reaching above freezing during the day, returns. And by Sunday, hints of spring. Producing this week's Shortwave Radiogram has been much easier than last week. I am getting more used to the software that runs under Windows 11. The programs that I use primarily are Fldigi (of course), Audacity, UltraEdit, MS Paint and Snipping Tool.  I still have to find solutions for a few quirks in Windows 11. Firefox windows and even instances of Fldigi will disappear, not to be found in the Task Bar or anywhere else. I know the Firefox windows are running, because if they have audio (eg a KiwiSDR), I can hear it. I can access some of the hidden Firefox pages by using Firefox History. Frequent trips to Task Manager are required to clean up all those hidden-but-running apps and pages.  And Audacity will claim that there is insufficient memory to paste a small segment of audio. So I have to save the Audacity file to a wav file and build on to that.  Sorry to bore you with these details! Please note that the Saturday 2300-2330 UTC transmission is now (or at least least week was) on three frequencies: 7570, 7780 and 9455 kHz, all from WRMI Florida.  The 9455 transmitter seems especially to offer DX opportunities. A video of last week's Shortwave Radiogram (program 390) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK.  @CadiereGerald contributes this IQ audio file of the Friday 0530 UTC show. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 390, 21-26 February 2025, in MFSK modes as noted:  1:44  MFSK32: Program preview  2:55  MFSK32: Why we think planet Theia existed  6:31  MFSK64: Test of new geothermal technology in Germany* 12:56  MFSK64: This week's images* 28:23  MFSK32: Closing announcements * with image(s) Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE IMMEDIATELY BELOW. IF THE IMAGE DOES NOT DISPLAY FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Sporty Porcupine in Alabama received these images 15 February 2025, 0330-0400 UTC, 9265 kHz from WINB Pennsylvania ...

Shortwave Radiogram, 14-19 February 2025 (program 389): Produced using new hardware and new improved (more complicated) software

This week is the first Shortwave Radiogram produced using my new Windows 11 PC. The old PC was not Windows 11 eligible, and it developed the habit of crashing at inconvenient moments. The new PC is "small form factor," about 1/6 the size of the old tower, so it's a better fit for my diminutive office/shack/Shortwave Radiogram World Headquarters. But the move up to Windows 11 means installing software compatible with the new OS. Software is usually "updated" by abandoning the elegant simplicity of earlier versions. It was a struggle producing program 389, learning where basic commands are now hidden. And many times during the process, I had to fetch a file or a password from the old PC, which fortunately is still operating.  It's a good challenge for an old brain. Happy World Radio Day, February 13. World Radio Day is organized by UNESCO. It seems to be more about UNESCO's ideals than about radio specifically. UNESCO is commendable, but its aspirations do not always fit smoothly with the radio broadcasting of today, in the United States and in much of the world.  A video of last week's Shortwave Radiogram (program 388) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 389, 14-19 February 2025, in MFSK modes as noted:  1:42  MFSK32: Program preview  2:53  MFSK32: Comets found outside our solar system  7:39  MFSK64: Planned large airship would move cargo* 14:38  MFSK64: This week's images* 27:15  MFSK32: Closing announcements * with image(s) Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway TRANSMISSION SCHEDULE IN THE IMAGE IMMEDIATELY BELOW. ADD 9455 TO THE SATURDAY  2300 UTC ROW ...

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Pop Shop Radio in British Columbia received these images 10 February 2025, 0800-0830 UTC, 5850 kHz from WRMI Florida ...

Shortwave Radiogram, 7-12 February 2025 (program 388): Digital modes that mimic the moon's gravity

Last week's experiment with the Fldigi alpha version 3.2.06.20 seemed to improve performance with image triggers and modes changes by way of RSIDs. This is because of the increased lag time as each MFSK transmission starts and stops. We need more data before making any conclusions. I am using 3.2.06.20 again with this week's show. Production was frustrating because the center audio frequency kept veering off of 1500 Hz. The AFC was probably the culprit, but in this version it is permanently on -- unless I am unaware of a setting that allows the AFC to be toggled. There is also a "Disable freq change" button in the RSID menu that I will try next week. The labyrinth of Fldigi settings is good exercise for an old brain, I suppose. A video of last week's Shortwave Radiogram (program 387) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 388, 7-12 February 2025, in MFSK modes as noted:  1:41  MFSK32: Program preview  2:49  MFSK32: New Shepard mission mimics moon's gravity  5:21  MFSK64: DW report on sabotage on undersea cables  9:53  MFSK64: Images of the week 28:21  MFSK32: Closing announcements Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Bluesky: swradiogram.bsky.social Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

mutantspore.bsky.social in Florida (near Tampa) received these images, 31 January 2025, 0030-0100 UTC, on 9265 kHz from WINB Pennsylvania ...

Shortwave Radiogram, 31 January-5 February 2025 (program 387): Photographs of Earth transmitted on shortwave

I have produced this week's program (387) using the latest alpha version of Fldigi: 4.2.06.20. According to our expert Tobias in Germany, this version "added short signal ramps to MFSK (and other) modes ... which ... should help initial MFSk synchronization after any signal gaps etc. I hope this will also improve the reliability to receive complete image headers, and thus the respective images." Let's see if this improves (or impairs) performance of RSID mode changes and image headers. You can continue to use your present version of Fldigi. The modifications in 4.2.06.20 (that I am using) affect only the encoding. This reminder that the swradiogram.bsky.social account is now active. This is where I repost listeners' results. And the @SWRadiogram X (Twitter) account is also active, for the time being. I think you can read the bsky even if you don't have a Bluesky account. Let me know if you can't. A video of last week's Shortwave Radiogram (program 386) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 387, 31 January-5 February 2025, in MFSK modes as noted:  1:45  MFSK32: Program preview  2:54  MFSK32: Private craft on way to moon photographs Earth*  6:53  MFSK64: "Traffic light" system warns of solar storms* 14:43  MFSK64: Images of the week* 28:33  MFSK32: Closing announcements * with images Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway

I have produced this week's program (387) using the latest alpha version of Fldigi: 4.2.06.20. According to our expert Tobias in Germany, this version "added short signal ramps to MFSK (and other) modes ... which ... should help initial MFSk synchronization after any signal gaps etc. I hope this will also improve the reliability to receive complete image headers, and thus the respective images." Let's see if this improves (or impairs) performance of RSID mode changes and image headers. You can continue to use your present version of Fldigi. The modifications in 4.2.06.20 (that I am using) affect only the encoding. This reminder that the swradiogram.bsky.social account is now active. This is where I repost listeners' results. And the @SWRadiogram X (Twitter) account is also active, for the time being. I think you can read the bsky even if you don't have a Bluesky account. Let me know if you can't. A video of last week's Shortwave Radiogram (program 386) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany. Here is the lineup for Shortwave Radiogram, program 387, 31 January-5 February 2025, in MFSK modes as noted:  1:45  MFSK32: Program preview  2:54  MFSK32: Private craft on way to moon photographs Earth*  6:53  MFSK64: "Traffic light" system warns of solar storms* 14:43  MFSK64: Images of the week* 28:33  MFSK32: Closing announcements * with images Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway

THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE BELOW. IF THE SCHEDULE IS NOT VISIBLE FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Dmitry in Russia received these images, and 99% of text, 29 January 2025, 1330-1400 UTC, 15770 kHz from WRMI Florida ...

Shortwave Radiogram, 24-29 January 2025 (program 386): Digital modes that do not 'split the atom'

I hope you have been able to withstand our stretch of cold and snow (unusual in some places) during the past few days in North America. At our house, the outdoor thermometer showed 10°F/-12°C during the early morning hours -- not as bad as many places, but about as cold as we have ever been. Last week's experiment with Olivia 64-2000 and Olivia 32-2000 was interesting. It was difficult to find signals poor enough that MFSK32 showed errors, while Olivia 64-2000 was 100% (or nearly so). But I have audio of two examples, which you can access, and from which you can decode. The first is January 19, 0330 UTC, 9265 kHz from WINB Pennsylvania. The signal is very weak because the signal is too close (200 km) to my receiver in northern Virginia.  The second is January 19, 2300 UTC, 7570 kHz from WRMI Florida. Here, the reception is challenging via an SDR in Bermuda because Voice of (North) Korea is co-channel and stronger. A video of last week's Shortwave Radiogram (program 385) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. (This link now works) Analysis is provided by Roger in Germany. Roger shows us the comparative bandwidths of the MFSK32, Olivia 64-2000, Olivia 32-2000 and MFSK64 ...

Here is the lineup for Shortwave Radiogram, program 386, 24-29 January 2025, in MFSK modes as noted:   1:41  MFSK32: Program preview  2:51  MFSK32: NZ mayor objects to Trump 'split the atom' claim  5:35  MFSK64: NASA develops a 3D-printed antenna* 10:46  MFSK64: Images of the week* 27:40  MFSK32: Closing announcements  * with image(s) Please send reception reports to radiogram@verizon.net And visit http://swradiogram.net Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results) Facebook group: https://www.facebook.com/groups/567099476753304 Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway THE SHORTWAVE RADIOGRAM TRANSMISSION SCHEDULE IS IN THE IMAGE BELOW. IF THE SCHEDULE IS NOT VISIBLE FULL WIDTH, CLICK ON IT.

Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.

Fred in the Shenandoah Valley of Virginia received these images 20 January 2025, 0800-0830 UTC, 5850 kHz from WRMI Florida ...

Just before the Shortwave Radiogram program 385 broadcast, 18 January 2025, 2300-2330 UTC, I saw a fair-strength carrier on an SDR in Bermuda. So I recorded that audio for later decoding. Listening to that audio, I discovered the carrier was actually Voice of Korea, as in DPRK North Korea, SIO 242. Shortwave Radiogram was in the background, SIO 111.

The audio begins with the North Korean national anthem, with Shortwave Radiogram's introductory MFSK32 underneath. The Olivia 64-2000 begins at 1:27. You will need a manual mode change, but it will decode mostly successfully, despite the Voice of Korea co-channel audio.

Then Olivia 32-2000 at 6:07, with a less successful decode. MFSK64 at 8:44, with several errors.

Text in MFSK32, Olivia 64-2000 and Olivia 32-2000 as transmitted by Shortwave Radiogram, 18 January 2025, 0330-0400 UTC, on 9265 kHz from WINB Pennsylvania. Reception is in northern Virginia (200 km) using a Yaesu FT-991A transceiver in USB mode. As is often the case with shortwave, the signal is very poor, not because the transmitter is too far away, but because it is too close.

As you decode with Fldigi, you will first hear the RSID for MFSK32, which might work. But there will be several errors in the MFSK32 text. While the MFSK32 text is printing, manually switch to Olivia 64-2000 (the RSID probably won't work) . The exact center frequency seems to be 1488 Hz (at least on my Fldigi), but 1500 Hz is close enough for Olivia 64-2000. Your printout of the Olivia 64-2000 text should be mostly error-free.

Then you will hear the RSID for Olivia 32-2000. Again, you will need a manual mode change. And you will see errors in the Olivia 32-2000 text.

This is a good demonstration of the ability of Olivia 64-2000 to communicate in adverse conditions.

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