Thursday, December 16, 2021

Shortwave Radiogram schedules, Friday-Sunday

 Hello friends

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 broadcast can be received in parts of Europe. This is because of helpful darkness over the north Atlantic. Reception seems to be better on 5850 than on 7730 kHz. The problem is a strong data (likely Stanag) signal, which last weekend was centered just below 5850 kHz. Our MFSK32 and even the MFSK64 on the upper sideband of 5850 managed to get by the data, for mostly successful decoding. 
If you are in Europe, try 5850 and 7730 kHz Sundays at 0800-0830 UTC.

For other results from last week, including more multipath images and reception from a cruise ship off the coast of Antarctica, follow @SWRadiogram on Twitter, or visit

A video of last weekend's Shortwave Radiogram (program 234, Friday 1300 UTC) is provided by Scott in Ontario. The audio archive is maintained by Mark in the UK. The analysis is prepared by Roger in Germany.

Here is the lineup for Shortwave Radiogram, program 235, 17-19 December 2021, in MFSK modes as noted:
 1:43  MFSK32: Program preview
 2:52  Warming Earth shrinks safe times for outdoor work
 8:04  MFSK64: Hydrogen airships for cargo transport?*
14:26  This week's (holiday) images*
28:31  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 15750 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” Most of the show is a music show, but the host transmits some MFSK-64 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). 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 1200 UTC on 3584 kHz USB, and the Pennsylvania NBEMS net Sunday at 1230 UTC on 3583 kHz USB. 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