Shortwave Radiogram, 12-14 February 2021: Celebrating World Radio Day

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 day” or “world multimedia day.” WRD is not so much about the science and technology of radio. It seems more about community radio stations – actual, potential, or imaginary – that further the social goals of UNESCO. Visit and see if you can figure out what World Radio Day is about. This weekend’s Shortwave Radiogram closes with the 2021 WRD “soundtrack” and logo.

Please note our newest transmission time, Saturday 0100-0130 UTC (Friday evening in the Americas) on 9955 kHz from WRMI Florida. This is directed to Latin America, but has been heard and decoded well in the western USA. Worth a try elsewhere, too.

Last weekend, reception of Shortwave Radiogram was good for the most part, and spectacular in some cases. Videos of last weekend’s Shortwave Radiogram (program 190) are provided by Scott in Ontario (Friday 1300 UTC) and by JELmusic in Denmark (final image of the Saturday 1330 UTC show). Thanks also to Ham Radio Crash Course for mentioning Shortwave Radiogram in his video Getting Started In Short Wave Listening, Radios and SDRs. The audio archive is maintained by Mark in the UK. Analysis is prepared by Roger in Germany.

This weekend’s show is in the usual MFSK32 and MFSK64, with eight MFSK64 images. After the preview in MFSK32, we switch immediately to MFSK64 for a lengthy (about 11 ½ minutes) but interesting article about a global amateur radio space weather observation network,

Here is the lineup for Shortwave Radiogram, program 191, 12-14 February 2021, in MFSK modes as noted:

  1:42  MFSK32: Program preview
  2:45  Super-light smart gel nets drinking water from air
  6:35  MFSK64: Hybrid supercapacitor offers energy density
10:17  This week’s images
28:20  MFSK32: Closing announcements

* with image(s)

Please send reception reports to

And visit

Twitter: @SWRadiogram or (visit during the weekend to see listeners’ results)

Facebook group:

Shortwave Radiogram Gateway Wiki

Shortwave Radiogram Transmission Schedule

| UTC Day  | UTC Time      | Frequency        | Transmitter       |
| Friday   | 0030-0100 UTC | 9265 kHz         | WINB Pennsylvania |
| Friday   | 1300-1330 UTC | 15770 kHz        | WRMI Florida      |
| Friday   | 1500-1530 UTC | 13655 kHz DRM    | WINB Pennsylvania || Saturday | 0100-0130 UTC | 9955 kHz         | WRMI Florida      |
| Saturday | 0330-0400 UTC | 9265 kHz         | WINB Pennsylvania |
| Saturday | 1330-1400 UTC | 15770 kHz        | WRMI Florida      |
| Sunday   | 0800-0830 UTC | 5850 and 7730 kHz| WRMI Florida      |
| Sunday   | 2330-2400 UTC | 7780 kHz         | WRMI Florida      | 

The Mighty KBC transmits to North America Sundays at 0000-0200 UTC (Saturday 7-9 pm EST) on 5960 kHz, via Germany. A minute of MFSK is at about 0130 UTC.  Reports to Eric: . See also and

“This is a Music Show” Most of the show is a music show, but the host transmits some MFSK text and image near the end of the broadcast. It’s transmitted on WRMI, Thursdays at 0200-0300 UTC on 5850 kHz (Wednesday evening in the Americas) and a new time also on WRMI, Wednesdays at 2100-2200 UTC on 7780 kHz (aimed towards Europe) . Also look for a waterfall ID at the beginning of the show. . @ThisIsAMusicSho

New York and Pennsylvania NBEMS nets. Most weekends, as KD9XB, I check in to the New York NBEMS (Narrow Band Emergency Messaging Software) net Saturday at 1300 UTC on 3584 kHz USB, and the Pennsylvania NBEMS net Sunday at 1230 UTC on 3583 kHz USB (with out-of-state check-ins now starting at 1130 UTC). Check-ins are usually in Thor 22, and messages are in MFSK32. Messages generally use the Flmsg add-on to Fldigi. If you are a radio amateur in eastern North America, feel free to check in. Outside the region, use an SDR in the eastern USA to tune in and decode. You do not need Flmsg to check in, and most of the messages can be read without Flmsg. If you can decode the net, send me an email to , or tweet to @SWRadiogram, and I will let them know you are tuned in. USEast NBEMS Net: Please also note the USEast NBEMS Net, Thursdays 0000 UTC (Wednesdays 7 pm EST) on 3536 kHz USB.



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