Last weekend’s experiment with the five 2000-Hz-wide Olivia modes was interesting and fun. It appeared that Olivia 64-2000, 32-2000, and 16-2000 all performed well, even in difficult reception condition. It was not until Olivia 8-2000 and, more so, 4-2000 that errors were seen.
At about 75 words per minute, Olivia 16-2000 might be a good mode
for Shortwave Radiogram, except that it is only about 70% as fast as MFSK32 and,
unlike MFSK32, it cannot be used to transmit images.
If you have recordings of your Olivia mode reception, especially
if your decode was less than 100%, try decoding from your recording after
adjusting the integration period upward (Op Mode > Olivia > Custom). Read
about the integration period here
and here, and note that the default integration period changes
as the number of tones changes. Large integration periods can be a problem in
amateur radio QSOs, because of the lag time between transmit and receive, but
they are less of a problem in a broadcast situation. If you do not have a
recording, you can use Scott’s
video, with some errors seen from the Olivia 8-2000 and 4-2000 modes.
This weekend Shortwave Radiogram will be all MFSK32. There are two
interesting stories about North Korea, and one about finding a lost
NASA satellite. Each of these has an image, and there is a bonus
images of Wednesday’s “super blue blood moon.”
The broadcast Sunday at 2330 UTC coincides with the kickoff of
Super Bowl LII. If ratings for the big game are down this year, it will be due
to competition from Shortwave Radiogram.
Here is the
lineup for Shortwave Radiogram, program 33, 3-5 February 2018, all in
MFSK32 centered on 1500 Hz:
1:31 Program preview
2:38 North Korea steps up mobile phone detection*11:08 White House criticizes NBC reports from North Korea*
17:48 Canadian radio amateur finds lost NASA satellite*
25:59 Super blue blood moon image*
28:06 Closing announcements
* with image
Please send reception reports to radiogram@verizon.net
And visit http://swradiogram.net
Twitter: @SWRadiogram
Facebook group: https://www.facebook.com/groups/567099476753304
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Shortwave
Radiogram Program 33
(3-5
February 2018)
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||||
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Saturday
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1600-1630 UTC
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9400 kHz
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MFSK32
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Space Line, Bulgaria
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Sunday
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2030-2100 UTC
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7780 kHz
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WRMI Florida
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Sunday
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2330-2400 UTC
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7780 kHz
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WRMI Florida
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Monday
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0800-0830 UTC
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7730 kHz
5850 kHz
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WRMI Florida
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The Mighty KBC
transmits to Europe
Saturdays at 1500-1600 UTC on 9400 kHz (via Bulgaria), with the minute of MFSK
at about 1530 UTC (if you are outside of Europe, listen via websdr.ewi.utwente.nl:8901/ ). And to North America Sundays at 0000-0200 UTC
(Saturday 7-9 pm EST) on 6150 kHz, via Germany. The 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/.
Italian
Broadcasting Corporation (IBC) For the complete IBC transmission schedule visit http://ibcradio.webs.com/ Five minutes of MFSK32 is at the
end of the 30-minute English-language “Shortwave Panorama,” per the schedule
below:
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Wednesday
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2025-2030 UTC
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5845 kHz
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Europe, Middle East, Asia
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Tuesday
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0125-0130 UTC
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5950, 11580 kHz
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Americas
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Friday
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0225-0230 UTC
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9955 kHz
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Americas
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Friday
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0255-0300 UTC
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5985 kHz
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Americas
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Saturday
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0155-0200 UTC
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5850, 5950, 9395, 9455 kHz
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Americas
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Sunday
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0055-0100 UTC
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7730 kHz
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Americas
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Sunday
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1155-1200 UTC
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6070 kHz
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Europe
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Thanks for your reception reports!
Kim Andrew Elliott, KD9XBProducer and Presenter
Shortwave Radiogram
Reporting on international broadcasting at https://twitter.com/kaedotcom