Shortwave Radiogram, 3-5 May 2019

Shortwave Radiogram

Last weekend’s Shortwave Radiogram was a reminder of the ability of
MFSK16 to provide a correct decode even in difficult shortwave
conditions. Thank you for your reception reports, especially listeners
in Japan who decoded, or attempted to decode, the excerpt of Japanese
text. (See this example from Sakaé-san in Joetsu-City, Niigata Prefecture.) Sometimes,
even the MFSK16 was not able to overcome the challenges of RF
interference in urban locations, especially with the transmitter 12000
km away.

The Saturday 0230-0300 UTC transmission on 9265 kHz from WINB Pennsylvania continues to have a wide footprint, as seen in this tweet
showing successful decode of the Japanese text simultaneously in
Hungary and Hawaii. And during the Sunday 2330-2400 UTC show on 7780 kHz
from WRMI Florida, the Japanese text was successfully decoded half way
around the world in Perth, Western Australia. Hear the audio (from which
you can decode) and see the decoded text here. Also, Roger in Germany made this sonogram of the Perth SDR reception.

Videos of last weekend’s Shortwave Radiogram (program 97) are provided by Scott on Ontario (Friday 1300 UTC), radio no koe in Japan (excerpt from Friday 1300 UTC received via Italy SDR), also radio no koe (excerpt from Sunday 0800 UTC on 5850 kHz via Maui SDR), 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, our usual MFSK32 and MFSK64, as well as one news item in Olivia 64-2000 mixed with, and 15 dB under, music.

Here is the lineup for Shortwave Radiogram, program 98, 3-5 May 2019, in modes as noted:

1:46  MFSK32: Program preview
2:56  Annual Armed Forces Day crossband test on May 11
6:46  MFSK64: Hybrid laser-radio transmits and receives
8:56  This week’s images*
22:59  Olivia 64-2000: Irish longwave station has two more years**
27:55  MFSK32: Closing announcements

* with image(s)
** Mixed with, and 15 dB under, music

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 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 (new for the summer) 9925 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, 9395 kHz kHz, Thursday 0130-0230 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.

The Japanese text as received by Sakaé, JH0BDK, in Japan, 28 April 2019, 0800-0830 UTC, 5850 kHz from WINB Florida …

Fuente: Shortwave Radiogram, 3-5 May 2019: Modes and Music Mixed = Mayhem?


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