Shortwave Radiogram, 29 August-1 September 2019: Mini anniversary and mini mode for the hidden messages

Shortwave Radiogram

Please note the  new “winter” frequency, 5960 kHz, for The Mighty KBC. The schedule is below.

Hurricane Dorian may be an issue this weekend. It is expected to hit
somewhere in Florida on Monday. However, on Sunday, winds in the outer
bands of the storm may start to affect operations at WRMI in Okeechobee,
Florida. Let’s hope that WRMI does not suffer any lasting damage from

Last week’s hidden message was in QPSK63 at 65 Hz.  Apparently the
QPSK63 worked better via WINB than via WRMI, because WINB has a lower
audio cutoff. For this week hidden messages, we return to BPSK63F.  It
will start 30 seconds after the closing MFSK32 ends. There will be four
messages, centered on 95, 85, 75, and 65 Hz, with 20 seconds silence
between the transmissions. For each an RSID will be transmitted, but
they may not work, so plan to change the audio frequency manually. The
BPSK63F will be mostly audible, especially as the audio frequencies
become lower.

Videos of last week’s Shortwave Radiogram (program 114) are provided by Scott in Ontario (Friday 1300 UTC) and by 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 nine MFSK images, and hidden messages in BPSK63F.

Here is the lineup for Shortwave Radiogram, program 115, 29 August-1 September,  in MFSK modes as noted:

1:39  MFSK32: Program preview
2:46  The Mini car is 60 years old*
6:54  MFSK64: Orbiting atomic clock activated*
11:07  This week’s images*
25:01  MFSK32: Closing announcements
26:44  BPSK63F: Hidden messages at 95, 85, 75, 65 Hz

* 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 Transmission Schedule           |
| UTC Day  | UTC Time      | Frequency     | Transmitter site    |
| Thursday | 2330-2400 UTC | 9265 kHz      | WINB Pennsylvania   |
| Friday   | 1300-1330 UTC | 15770 kHz     | WRMI Florida        |
| Friday   | 1500-1530 UTC | 15120 kHz DRM*| WINB Pennsylvania   |
| Saturday | 0230-0300 UTC | 9265 kHz      | WINB Pennsylvania   |
| Sunday   | 0800-0830 UTC | 5850 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 pm EDT) on new 5960 kHz, via Germany. A minute of MFSK 64 is at about 0130 UTC.  Reports to Eric: . See also and

“This is a Music Show” is the newest addition to
digital modes via analog shortwave. 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, 0100-0200 UTC on 5850
kHz and 0130-0230 UTC on 9395 kHz (Wednesday evening in the Americas).
Also look for a waterfall ID at the beginning of the show. . or @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 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 (PA NBEMS is experimenting with
Thor 50×1 for messages). 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 at 2300 UTC (7 pm EDT)
on 3536 kHz USB. I will try to check in to this net more frequently.

On 25 August, 2330-2400 UTC, 7780 kHz from WRMI Florida, three
artistically fuzzy images received by Al also in Florida, in the skip
zone …

Fuente: Shortwave Radiogram, 29 August-1 September 2019: Mini anniversary and mini mode for the hidden messages


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