Discover Top Posts Tagged with #digimodes

Shortwave Radiogram, 4-11 June 2026 (program 452): Some Olivia among the MFSK

Put on your official Shortwave Radiogram white lab coats, because we will be experimenting this week on program 452. After the usual MFSK32 and before the MFSK64, there will be a brief message in Olivia 64-2000 about "Extreme Shortwave," a new project that will be a companion to Shortwave Radiogram. To receive Olivia 64-2000 (64 tones, 2000 Hz wide), make sure the SQL (squelch) in the bottom right of Fldigi is off. Also, the bandwidth on your receiver should be 2500 Hz if you tune in using sideband, or 5000 Hz with AM. (This should not be a problem with most receivers.) And note that the characters from the Olivia 64-2000 will not appear on your display until a couple of seconds after the tones are heard. If you tune in a Shortwave Radiogram transmission in which reception is poor -- even if inadequate for MFSK32 text -- good! It will be a great test for the Olivia 64-2000. Reception might be so bad that you can't understand a word of my voice introduction. Even if that happens, stay tuned. You probably will need to set the mode to Olivia 64-2000 manually before it begins at 6 minutes, 18 seconds into the program. At that point, you might see the Olivia 64-2000 text on your display even if reception and decoding are unsuccessful during the rest of the broadcast A video of last week's Shortwave Radiogram (program 451) 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 451, 4-11 June 2026, in MFSK and Olivia modes as noted: 1:46 MFSK32: Program preview 3:04 MFSK32: News re shortwave automated trading stations 6:18 Olivia 64-2000*: "Extreme Shortwave" is coming 8:27 MFSK64: Portugal's spaceport in the Azores 13:11 MFSK64: This week's images 28:30 MFSK32: Closing announcements * Turn Fldigi SQL off. Please send reception reports to [email protected] And visit http://swradiogram.net Listener results are posted at Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social (you do not need a Bluesky account to see these posts) Twitter: @SWRadiogram or https://twitter.com/swradiogram 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.

Ciro in Italy received these images 30 May 2026, 0230-0300 UTC, 9265 kHz from WINB Pennsylvania ...

#shortwave #digimodes

Shortwave Radiogram, 12-19 March 2026 (program 440): Digital modes that can shift an asteroid's orbit

The change to Daylight Savings Time in North America is now complete. WINB's program schedule stays with Eastern Time. The UTC times for Shortwave Radiogram on 9265 kHz are now one hour earlier, but the same by local time in most of North America. Our transmission Saturday at 2300-2330 UTC on 9455 kHz from WRMI Florida stays the same by UTC, so it's one hour later by local time in most of North America: 1900 EDT, 1800 CDT, 1700 MDT, 1600 PDT. Other changes I mentioned in last week's post. The updated schedule for spring and summer 2026 is below. The European time change does not occur until the end of March. For now, European listeners should note the UTC time changes for WIINB on 9265 kHz and make the necessary adjustments for local time. We had a lively snowfall this afternoon, leaving a dusting on the ground. When I woke up Thursday morning, it was 70F/21C. Within two hours the temperature dropped to 40F/4C. It was even colder by the time the snow started. Still, it was good to see snow, probably for the last time this season. It will be hot enough, soon enough. A video of last week's Shortwave Radiogram (program 424) 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. See also the IQ audio file and other resources from H0B0_Radio in Washington state. And the image archive provided by John R in California. Here is the lineup for Shortwave Radiogram, program 440, 12-19 March 2026, in MFSK modes as noted (and maybe also a surprise mode): 1:40 MFSK32: Program preview 2:50 MFSK32: NASA spacecraft shifts asteroid's orbit 7:03 MFSK64: NASA IG questions Artemis lunar lander plans 10:06 MFSK64: This week's images 27:07 MFSK32: Closing announcements Please send reception reports to [email protected] And visit http://swradiogram.net Listener results are posted at Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social (you do not need a Bluesky account to see these posts) Twitter: @SWRadiogram or https://twitter.com/swradiogram 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.

Ciro in Italy received these images 7 March 2026, 0330-0400 UTC, 9265 kHz from WINB Pennsylvania ...

#shortwave #digimodes

Shortwave Radiogram, 27 February-5 March 2026 (program 438): Digital modes to the exoplanets

I hope everyone in North America has recovered from the second round of winter weather. The snow here in northern Virginia was wet and heavy. My wire antennas were drooping precipitously. After knocking off the excess snow with a broom handle, and with the help of melting, the wires are now more-or-less in their correct horizontal configuration. A video of last week's Shortwave Radiogram (program 437) 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. See also an IQ file and other resources provided by H0B0_Radio in Washington state. Here is the lineup for Shortwave Radiogram, program 438, 27 February-5 March 2026, in MFSK modes as noted: 1:37 MFSK32: Program preview 2:48 MFSK32: Intricate silk helps spiders ensnare prey in webs 6:36 MFSK64: Listening for radio signals from exoplanet 10:43 MFSK64: This week's images 28:30 MFSK32: Closing announcements Please send reception reports to [email protected] 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.

Ciro in Italy received these images on 9265 kHz from WINB Pennsylvania ...

#shortwave #digimodes

Shortwave Radiogram, 19 December 2025-1 January 2026 (program 430): Our "Holiday Spectacular" -- repeated for maximum exhaustion

This week's Shortwave Radiogram is our "Holiday Spectacular" -- fifteen MFSK64 images showing holiday lights and decorations in cities across North America. Because holiday activities will keep most of us busier than usual, this program 430 will be repeated the following week. By the time of the last transmission January 1, 2026, you will probably be tired of looking at MFSK64 images of holiday lights. News from here at the house: With our new roof shingles finally installed, the antenna installers came today to restore my 10/6 M vertical and 10/6 fan dipole antennas to the top of the house. You might remember that my 160-meter "inverted U" antenna also came down because the pine tree that provided its apex was removed. The antenna installers attached the wire to the mast holding up the vertical antenna, thus forming the new apex. The rest of the 150 feet of wire was tossed to the ground, where it will eventually find its way up one of our remaining trees. And in news from my shack, my Yaesu FT-991A has failed again, after having been sent to Yaesu twice for warranty repair. It's always the same problem: What sounds like rapid-fire arcing from within the transceiver, and no audio other than static from the arcing. My FT-991A is a lemon, and I will try to convince Yaesu to replace it. It's a good shack-in-a-box when it works. (Fortunately my old Yaesu FT-897D still works as a backup, although the display is slowly failing.) Anyway, Merry Christmas, happy holidays, best wishes for the new year! And thanks for tuning in and reporting your results. A video of last week's Shortwave Radiogram (program 424) 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. Also: IQ audio file and other resources from H0B0_Radio in Washington state. And the image archive provided by John in California. Here is the lineup for Shortwave Radiogram, program 430, 19 December 2025-1 January 2026, in MFSK modes as noted: 1:39 MFSK32: Program preview 3:01 MFSK64: Our Holiday Spectacular: Images of lights and decorations in North America 28:56 MFSK32: Closing announcements Please send reception reports to [email protected] 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.

Dmitry in Russia emailed these images from his reception, 17 December 2025, 1330-1400 UTC, 15770 kHz from WRMI Florida ...

#shortwave #digimodes

Shortwave Radiogram, 12-18 September 2024 (program 2024): Digital modes still working their way across the Milky Way

The anniversary of the 9/11 terrorist attacks, earlier this week, generated memories of that event, including the role of the mass media. While I am still able to remember 23 years ago, I decided to post a series of tweets to my X/Twitter account @kaedotcom. I was a VOA broadcaster then and played a small part in providing coverage. Those tweets are consolidated into the MFSK32 text item in this week's broadcast. A listener alerted me to an anomaly at the swradiogram.net website. The Shortwave Radiogram transmission schedule, which displays correctly in the emails, is "clipped" on the left and right edges. If you click on that schedule, it displays completely from left to right. That will have to be the solution until I figure out a way to insert, quickly, tables in both the email (Mailchimp) and the website (Tumblr) A video of last week's Shortwave Radiogram (program 369) 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 370, 12-18 September 2024, in MFSK modes as noted: 1:40 MFSK32: Program preview 2:44 MFSK32: How VOA News Now covered 9/11 6:26 MFSK64: The Milky Way is bigger than we thought 8:57 MFSK64: This week's images 28:36 MFSK32: Closing announcements Please send reception reports to [email protected] 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. Click on the image to see the full width ...

WØMM in Houston received these images Saturday, 7 September 2024, 2300-2330 UTC, on 7570 kHz from WRMI Florida ...

#shortwave #digimodes

Shortwave Radiogram, 24-28 August 2023 (program 319): Digital modes from which you can harvest antioxidants

Our transmission Friday at 1300-1330 UTC on 15770 kHz from WRMI Florida was back to normal last weekend. This was a great relief, because this transmission arguably has the greatest reach of all the Shortwave Radiogram airplays. The 15770 frequency reaches Europe, Australia, most parts of North America, and often into Latin America. Usually it's listeners who are too close to WRMI who have the most trouble with this broadcast. The area of this skip zone varies from week to week and from season to season. And this reminder of recent schedule adjustments: 1) The transmission Tuesdays at 1430-1500 UTC on 9955 kHz from WRMI has moved to Sundays. 2) The DRM transmission from WINB Pennsylvania, Friday 1400-1430 UTC, most recently on 15735 kHz, is no more. WINB has ceased its DRM broadcasts. A video of last weekend's Shortwave Radiogram (program 318) is provided by Scott in Ontario (Friday 1300 UTC). (And Lolo SDR in Spain produced this video of the Pop Shop Radio MFSK64 segment, 19 August at 2155 UTC on 3955 kHz from Channel 292 in Germany.) 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 319, 24-28 August 2023, in MFSK modes as noted: 1:47 MFSK32: Program preview 2:55 MFSK32: Harvesting antioxidants from olive oil waste* 8:15 MFSK64: Facebook news ban reveals the importance of radio 13:19 MFSK64: This week's images* 27:53 MFSK32: Closing announcements Please send reception reports to [email protected] 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

Juan EA5XQ in Spain received these images and text 17 August 2023, 2330-2400 UTC, 9265 kHz from WINB Pennsylvania ...

#shortwave #digimodes

Shortwave Radiogram, 11-18 June 2026 (program 453): Official digital modes of the East India Company

A new transmission time for Shortwave Radiogram has been added. It is UTC Monday 0030-0100 UTC (Sunday evening in the Americas) on 5050 kHz from WRMI Florida. The 5050 frequency from WRMI is heard well in Florida and the Caribbean, but beyond those areas reception of 5050 is DX. This provides an opportunity to test our slower text modes. In fact, this time slot will eventually be taken over by "Extreme Shortwave," which will be dedicated to the slow and robust modes -- and usually no images.

Last week, in addition to our usual MFSK32 and MFSK64, we experimented with Olivia 64-2000, a slow (24 wpm) but robust mode, to demonstrate the ability of old analog shortwave broadcast transmitters to convey information in difficult reception conditions. Some transmissions provided several examples of challenging reception at SDR sites.

One example was during the Sunday 1430 UTC transmission, 9955 kHz from WRMI Florida, via an SDR in Michigan. Reception of 9955 in Michigan is typically difficult, but it was made even more so by wide-band interference that covered the upper 65% of the Olivia 64-2000 tones. Nevertheless, the Olivia 64-2000 decoded 100%. The screenshot below shows the mostly unsuccessful MFSK32 text, changing over to the 100% Olivia 64-2000 …

This week Shortwave Radiogram will include Olivia 32-2000 between the MFSK32 and MFSK64 news items. With only 32 tones, it will be less slow (about 48 wpm) than the Olivia 64-2000, but it still might decode well in difficult reception conditions. A video of last week's Shortwave Radiogram (program 452) 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 453, 11-18 June 2026, in MFSK and Olivia modes as noted: 1:47 MFSK32: Program preview 3:04 MFSK32: NASA's X-59 jet breaks sound barrier 6:23 Olivia 32-2000*: Another "Extreme Shortwave" announcement 7:47 MFSK64: Like East India Company, SpaceX dominates market 12:54 MFSK64: This week's images 28:05 MFSK32: Closing announcements * Turn Fldigi SQL (squelch) off for Olivia 32-2000 Please send reception reports to [email protected] And visit http://swradiogram.net Listener results are posted at Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social (you do not need a Bluesky account to see these posts) Twitter: @SWRadiogram or https://twitter.com/swradiogram 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.

Dave in Arizona received these images 8 June 2026, 0800-0830 UTC, 5850 kHz from WRMI Florida ...

#shortwave #digimodes

Shortwave Radiogram, 28 May-4 June 2026 (program 451): End time for CHU

The first news story on this week's Shortwave Radiogram is about Canada's plans to close the shortwave time station CHU in June. Many of us have tuned in CHU over the decades to get a an accurate time reading. In my eastern US location, CHU is often easier to hear than WWV. I have often thought that our MFSK32 modes could be added to CHU or WWV for time and general announcements. In difficult reception conditions, text information is more likely to be conveyed to the listener than a voice announcement. CHU, with its three shortwave frequencies, could be a wonderful laboratory to explore the capabilities of HF, especially as an alternative to the internet, which may not always be "always on." A video of last week's Shortwave Radiogram (program 450) 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 451, 28 May-4 June 2026, in MFSK modes as noted: 1:43 MFSK32: Program preview 2:53 MFSK32: Canada's CHU time station will close 5:18 MFSK64: Cities seek to reduce light pollution, see stars 12:35 MFSK64: This week's images 28:15 MFSK32: Closing announcements Please send reception reports to [email protected] And visit http://swradiogram.net Listener results are posted at Bluesky: swradiogram.bsky.social or https://swradiogram.bsky.social (you do not need a Bluesky account to see these posts) Twitter: @SWRadiogram or https://twitter.com/swradiogram 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.