Shortwave Radiogram, 8-11 October 2020: Does something sound different?


With difficult reception this time of year in some parts of the world,this weekend we will transmit a slow, robust mode: Olivia 32-1000 (32 tones, 1000 Hz wide). The extra “twist” in this exercise is that the
Olivia 32-1000 will be centered on an audio frequency of 2000 Hz. You will hear the difference! This shift is audio is not entirely silly: If there is co-channel interference consisting of human voice, music, or
even jamming, most of the noise will be in the lower audio reaches.
Olivia 32-1000 at 2000 Hz might be able to escape the interference. The
audio extends to 2500 Hz above and below the carrier, so make sure your
bandwidth is not too tight. If you are listening on WINB, a  manual
change of mode and audio frequency might be necessary.

A good five-minute video explaining
Shortwave Radiogram has been produced by Norm KC9CSC at his Shacking
Off YouTube channel.   This is in addition to the videos of the entire
half hour of last weekend’s Shortwave Radiogram (program 172) kindly
provided by Scott in Ontario (Saturday 1330 UTC)  and Frigid RF in Virginia (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 MFSK32, Olivia 32-1000 (at 2000 Hz), and MFSK64, with nine MFSK64 images.

Here is the lineup for Shortwave Radiogram, program 173,  8-11 October 2020, in modes as noted:

1:46  MFSK32: Program preview
2:51  Olivia 32-1000: Slightly higher solar cycle predicted**
11:18  MFSK64: Diamond could switch from insulator to conductor*
15:03  This week’s images*
28:33  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


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 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 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.


Georgi in Bulgaria used TIVAR to decode text and images from his
Tecsun PL-365, 2 October 2020, 15770 kHz from WRMI Florida. See more of
Georgi’s decoded images here.


Fuente: Shortwave Radiogram, 8-11 October 2020: Does something sound different?


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