Shortwave Radiogram, 4-6 January 2018: Extremely clever digital modes bring you extremely interesting news about extremely low frequencies

Shortwave Radiogram

Thanks for many good reports to Shortwave Radiogram last weekend to
close out 2018. Some submitted images are below. Other results can be
seen at our Twitter account @SWRadiogram or .

Videos of last weekend’s Shortwave Radiogram (program  ) are provided by Scott in Ontario (Friday 2030-2100 UTC)  and Ralf in Germany (Saturday 1400-1430 UTC) and Scott in Ontario (Sunday 2330-2400 UTC). The audio archive is maintained by Mark in the UK. Analysis is prepared by Roger in Germany.

Here is the lineup for Shortwave Radiogram, program 81, 4-6 January 2019, in MFSK modes as noted:

1:41  MFSK32: Program preview
2:56  China’s extremely low frequency antenna for submarines
6:40  MFSK64: Dream Chaser spaceplane nears production*
11:03  Ocean Cleanup project returns to port for repairs*
14:34  This week’s images*
24:29  Tecsun Radios Australia decoding competition*
28:15  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:

Slow Scan Radio transmits SSTV images and text modes
Saturdays at 1300-1330 UTC on 6070 kHz (and maybe also 7440 kHz) via
Channel 292 in Germany – according to the latest schedule information I
have. The website is Reception reports to

The Mighty KBC transmits to Europe Saturdays at
1300-1400 UTC on 11600 kHz from Bulgaria, with the minute of MFSK at
about 1330 UTC (if you are outside of Europe, listen via ). And to North America Sundays at 0000-0200
UTC (Saturday 7-9 pm EST) on 5960 kHz, via Germany. The minute of MFSK is at about 0130 UTC.  Reports to Eric: . See also and

Italian Broadcasting Corporation (IBC)  Sadly, IBC has ended its shortwave broadcasts.  See



Marco in Italy wrote that the 2030-2100 UTC broadcast on 28 December was
“barely receivable,” but the MFSK64 text decoded successfully …

Alvin in the Netherlands prepared this montage after his first decoding
of Shortwave Radiogram, 29 December 2018, 1400-1430 UTC, 9400 kHz from
Bulgaria …

Carlos in Illinois
was able to receive these images all the way from Bulgaria, 29 December
2018, 1400-1430 UTC, 9400 kHz, despite WRMI on 9395 kHz …

One of my favorite images from last weekend is the Milky Way, with tree
reflecting sunrise or sunset, at Shenandoah National Park, received via
an SDR in New Zealand, 30 December, 0817 UTC, 7730 kHz from WRMI
Florida …

Al in Florida had great decodes of these images, 30 December, 0800-0830 UTC, 5850 kHz from WRMI Florida …

Gough Lui in NSW Australia
used an SDR in the northern tip of Norway to received these images and
text, 30 December 2018, 2330-2400 UTC, 7780 kHz from WRMI Florida …


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