Shortwave Radiogram, 13-16 August 2020: Digital modes that don’t Minsk words


Apologies for the late start last weekend of the Friday 1300-1300 UTC
broadcast on 15770 kHz. When it finally came on the air about halfway in
to the half-hour, reception was great here in the mid-Atlantic USA. The
Saturday 1330-1400 UTC show, also on 15770, was transmitted in its
entirety, but reception in North America was not good. It did reach
Europe, however. Such is the daily variability of shortwave.

We had fun last week with the two exotic modes. The Hell 80 was visible
most places.  It’s not very practical, but it interesting to try
occasionally. The 32xPSK63R (1760 wpm!) failed to achieve a 100% decode
in most places, as expected. There, however, some successes. Most were
one hop from the transmitter. Some were as far as California and Europe
(see this example from France).
The 32xPSK63R mode might be useful for reliable, short-hop circuits in
which a large amount of content – such as a formatted web page – needs
to be sent without taking too much time.

Videos of last weekend’s Shortwave Radiogram (program 164) are provided by Scott in Ontario (Saturday 1330 UTC), Brijesh E.P using an SDR in Texas (Sunday 0800 UTC on 5850 kHz), and Ralf in Germany (Sunday 2330 UTC). 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 ten images (1 x MFSK32 and 9 x MFSK64).

Here is the lineup for Shortwave Radiogram, program 165, 13-16 August 2020, in MFSK modes as noted:

1:42  MFSK32: Program preview
2:47  Excerpt of Belarusian report from RFE/RL* **
7:12  MFSK64: Telegram circumvents Belarus’s blocked internet
12:32  This week’s images*
28:25  MFSK32: Closing announcements

* with image(s)
** use UTF-8 character set (default in Fldigi and TIVAR) for the Cyrillic text

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       |
| Thursday | 2330-2400 UTC | 9265 kHz         | WINB Pennsylvania |
| Friday   | 1300-1330 UTC | 15770 kHz        | WRMI Florida      |
| Friday   | 1500-1530 UTC | 15750 kHz DRM    | WINB Pennsylvania |
| Saturday | 0230-0300 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 8-10 EDT) on 9925 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. .

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 1200 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, Wednesdays 2300 UTC (7 pm EDT) on 3536 kHz USB.


Christopher in Oregon
shares his successful decode of the two exotic modes, and six images, 9
August 2020, 0800-0830 UTC (not sure if 5850 or 7730 kHz) …


Fuente: Shortwave Radiogram, 13-16 August 2020: Digital modes that don’t Minsk words


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