Shortwave Radiogram, 30 April-3 May 2020: Digital modes, sometimes via the long path

Shortwave Radiogram

Please note that The Mighty KBC returns to its summer frequency of 9925 kHz this weekend, Sunday 0000-0200 UTC, or Saturday 8-10 pm EDT. The 9925 kHz frequency is from a transmitter in Nauen, Germany. Dave and Eric present rare and well-known oldies. A minute of MFSK64, with this weekend’s musician birthday, is at about  0130 UTC.

Spring in the Northern Hemisphere – Autumn in the Southern Hemisphere – brings interesting possibilities for shortwave propagation between the north-south hemispheres. At the bottom of this post is reception by Frank in Perth, Western Australia, Sunday 2330-2400 UTC, 7780 kHz from WRMI Florida. This distance is 18000 km, although 7780 is a frequency that works better in darkness, and the dark path between Okeechobee and Perth at that hour is the long path, so it might be 22000 km!

Videos of last weekend’s Shortwave Radiogram (program 149) are provided by 2010DFS in Japan (more amazing reception Sunday at 0800 UTC on 7730 kHz), Scott in Ontario (also Sunday 0800 UTC, but on 5850 kHz), 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’s show is in the usual MFSK32 and MFSK64, with nine MFSK images.

Here is the lineup for Shortwave Radiogram, program 150, 30 April-3 May 2020, in MFSK modes as noted:

1:43  MFSK32: Program preview
2:49  In 1939, unexpected arrival of Soviet flight in Canada*
9:30  MFSK64: Tracking Iran’s Nour-1 satellite*
15:04  This week’s images*
27:50  MFSK32: Closing announcements

* with image(s)

Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ results)

Facebook group: https://www.facebook.com/groups/567099476753304

Shortwave Radiogram Gateway Wiki https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway

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.  Reports to Eric: themightykbc@gmail.com . See also http://www.kbcradio.eu/ and https://www.facebook.com/TheMightyKbc/.

“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 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.
thisisamusicshow@gmail.com .  www.twitter.com/ThisIsAMusicSho/
@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. 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 radiogram@verizon.net , 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.

 

Using an 80-year-old military receiver, Frank in Perth, Western Australia,
received these images and text, Sunday 2330-2400 UTC, 7780 kHz from
WRMI Florida. This distance is 18000 km, although 7780 is a frequency
that works better in darkness, and the dark path between Okeechobee and
Perth at that hour is the long path, so it might be 22000 km! …

 

Fuente: Shortwave Radiogram, 30 April-3 May 2020: Digital modes, sometimes via the long path



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