Shortwave Radiogram, 26-28 April 2019

Shortwave Radiogram

Last weekend’s Japanese text was decoded in Japan, in some cases
partially, and in others 100%. This weekend, we will try another brief
excerpt of Japanese text, but this time in MFSK16, which is slower and
more robust than our usual MFSK32. We will also raise the center audio
frequency to 2000 Hz to try to escape any interference from voice
transmissions. Turn on your RxID to guide Fldigi to the correct mode and
audio frequency. If the RSID does not work, a 10-second tuning signal
will help you manually tune to the correct audio frequency. MFSK16
requires precise tuning of the audio frequency for correct decoding.

Videos of last weekend’s Shortwave Radiogram (program 96) are provided by Scott in Ontario (our new Friday 1300 UTC transmission), 2010DFS in Japan (Sunday 0800 on 5850 kHz, with a perfect decode of the Japanese text), and by Ralf in Germany (Sunday 2330 UTC, or 0130 in Germany!). 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 97, 26-28 April 2019, in MFSK modes as noted:

1:46  MFSK32: Program preview
4:09  MFSK16: Japanese text (at 2000 Hz)
8:05  MFSK64: New solar panels for high altitude UAVs*
11:37  Wireless power transfer (WPT) potential radio interference
13:18  BIRDS-3 cubesats delivered to the ISS
15:34  This week’s images*
28:18  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 Transmission Schedule           |
| UTC Day  | UTC Time      | Frequency     | Transmitter site    |
| 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        | 


Slow Scan Radio transmits is taking some time off until
early May. Then it will transmit SSTV images and text modes Saturdays
at 1300-1330 UTC on 6070 kHz and 7440 kHz via Channel 292 in Germany.
The website is Reception reports to

The Mighty KBC transmits to North America Sundays at 0000-0200 UTC (Saturday 8-10 pm 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” 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, 5850 kHz, Thursday 0100-0200 UTC
(Wednesday evening in the Americas). 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 (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.


A screenshot of the decode of Japanese text by 2010DFS in Japan, 21 April 2019, 0800-0830 UTC, 5850 kHz from WRMI Florida …

Fuente: Shortwave Radiogram, 26-28 April 2019: More 日本語 but this time in MFSK16 at 2000 Hz


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