Shortwave Radiogram, 20-22 November 2020, programa 179

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 the radio, but the FLdigi display is blank.» He also tried upgrading to Fldigi 4.1.16 and moving back to 4.1.14, with no success. If you have advice, please send it our usual email and I’ll pass it on.

During our Sunday 0800-0830 UTC transmission, 5850 and 7730 kHz from WRMI Florida, there is now enough darkness over the North Atlantic to enable reception in Europe, at least in some locations. Lately there has been a data signal on 5850 kHz that disrupts reception on that frequency, although our MFSK might be partially decodable on either side of the co-channel signal.

Videos of last weekend’s Shortwave Radiogram (program 178) are provided by Scott in Ontario (Friday 1300 UTC) and UR1002 SWL in California (the MFSK32 closing of the Friday 1500 UTC DRM transmission as received on a Uniwave Di-Wave 100 DRM radio). The audio archive is maintained by Mark in the UK. Analysis is prepared by Roger in Germany.

This weekend’s show is in our tried-and-true MFSK32 and MFSK64, with eleven MFSK64 images.

Here is the lineup for Shortwave Radiogram, program 179,  20-22 November 2020, in MFSK modes as noted:

1:41  MFSK32: Program preview
2:44  Quebec mandates electric cars starting 2035
6:16  MFSK64: UK studies orbital solar power plants*
11:11  This week’s images*
27:57  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 0330-0400 UTC 9265 kHz WINB Pennsylvania
Saturday 1330-1400 UTC 15770 kHz WRMI Florida
Sunday 0800-0830 UTC 5850 kHz
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” is the newest addition to digital modes via analog shortwave. 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. thisisamusicshow@gmail.com @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.

Thanks for your reception reports!


Kim Andrew Elliott, KD9XB

Producer and Presenter

Shortwave Radiogram

Reporting on international broadcasting at

You never know where the Saturday 0330-0400 UTC transmission, 9265 kHz from WINB Pennsylvania, will be heard and decoded. Sometimes across the Pacific. Sometimes across the Atlantic. Usually somewhere in the Americas. Last week (November 14) it was received very well by Johnny @cuoops in southeast Texas …


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