Shortwave Radiogram, 23-26 July 2020: Digital modes that leave permafrost frozen permanently

Typical summer weather here, but even more so. Many consecutive days of temperatures above 90F, or 32C. And several days above 95F, or 25C.These hot days are often capped in the late afternoon or early evening with a rollicking thunderstorm. The accompanying winds blow branches onto power lines, and suddenly we have no electricity. Amazingly, the power to our house stayed on after a big storm yesterday. If we lost power, I would not have been about to produce this weekend’s Shortwave
Radiogram. If you ever hear a Shortwave Radiogram that is a repeat of the previous week’s show, loss of electricity at my house is a likely reason.

Most of us had good luck last week decoding the Chinese characters. An especially good example is this brief video provided by Jorge in Mexico, who used the TIVAR app.  We will try some other non-Latin alphabets in future broadcasts.

Videos of last weekend’s Shortwave Radiogram (program 161) are provided by Scott in Ontario (Friday 1300 UTC) and by 2010DFS in Shimane, Japan – separate videos for 5850 and 7730 kHz Sunday at 0800 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 MFSK64 images.

Here is the lineup for Shortwave Radiogram, program 162,  23-26 July 2020, in MFSK modes as noted:

1:42  MFSK32: Program preview
2:45  Melting Arctic permafrost poses climate threat
6:22  MFSK64: Vertical farming in the UAE desert*
13:02  This week’s images*
28:40  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       |
| 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.  Also look for simultaneous text with Peter
John’s DX Headlines during the 0130-0200 UTC segment. 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.


Alonso K6KZO in Texas received these images and text 18 July 2020 at 0230-0300 UTC on 9265 kHz from WINB Pennsylvania.

Fuente: Shortwave Radiogram, 23-26 July 2020: Digital modes that leave permafrost frozen permanently


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