Hello friends,
“Slow Scan Radio” is a new broadcast providing text and images via
analog shortwave broadcasting. It is produced by John Piek, PA0ETE. As the name
implies, the show features images in various SSTV modes. The SSTV images can be
decoded using software such as MMSSTV from http://hamsoft.ca/pages/mmsstv.php
and the receive-only RXSSTV from http://users.belgacom.net/hamradio/rxsstv.htm
. Slow Scan Radio also has text in various modes. Several MFSK and PSK modes
were included on the first broadcast on 25 July.
The schedule is Wednesdays at 1830-1900 UTC on 6070 kHz from
Channel 292 in Germany. The website of Slow Scan Radio is http://www.slowscanradio.com
and reception reports can be sent to John at x@xdv.me.
Last week’s Shortwave Radiogram produced good results despite some
difficult reception conditions. You can see examples of decoded images and text
at @SWRadiogram or https://twitter.com/swradiogram.
Videos of last weekend’s show (program 57) were provided by Ralf in Germany,
with a second version,
from Saturday at 1600 UTC, and by Scott in Ontario from Sunday at 2330-2400 UTC. Mark in
the UK maintains the audio archive, and Roger in Germany provides analysis.
This weekend we will try another experiment with an 8PSK mode. Roger in
Germany reminded us that PSK modes involve phase shift keying, and that the
problems with the phase modulation can occur if the the upper and lower
sidebands are not identical. Our hypothesis therefore would be that the decode
of 8PSK received in a single sideband mode will be better than the decode
received in AM. We will decode 8PSK125F first in AM, then in either USB or LSB
(if your radio can receive SSB). Thirty
seconds will be provided to switch your receiver from SSB to AM and vice versa.
(The receiver mode changes; Shortwave
Radiogram is always transmitted in standard AM.)
Here is the lineup for Shortwave Radiogram, program 58, 27-30
July 2018, in modes as noted:
1:37 MFSK32: Program preview
2:57 Slow Scan Radio* and SSTV from the ISS
9:34 8PSK125F: VOA story about water under Mars**
11:26 8PSK125F: DW story
about water under Mars***
14:05 MFSK64: Cooling
devices and global warming*
21:22 Images of the week*
28:39 MFSK32: Closing
announcements
* with image(s)
** Use AM mode
*** Use USB or LSB mode (if available on your radio)
Please send reception reports to radiogram@verizon.net
And visit http://swradiogram.net
Twitter: @SWRadiogram or https://twitter.com/swradiogram
Facebook group: https://www.facebook.com/groups/567099476753304
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Shortwave Radiogram
Program 58
(27-30 July 2018)
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Friday
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2030-2100 UTC
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7780 kHz
5950 kHz
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MFSK32
8PSK-125F
MFSK64
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WRMI Florida
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Saturday
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1600-1630 UTC
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9400 kHz
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Space Line, Bulgaria
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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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Slow Scan Radio transmits
SSTV images and text modes Wednesdays at 1830-1900 UTC on 6070 kHz via Channel
292 in Germany. The website is http://www.slowscanradio.com. Reception reports to x@xdv.me.
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 8-10 pm EDT)
on 9925 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) Five
minutes of MFSK32 is at the end of the 30-minute English-language “Shortwave
Panorama. For the complete IBC transmission schedule visit http://ibcradio.webs.com/
Broad
Spectrum Radio is transmitted by WRMI Florida Mondays at 0700-0800 UTC on 5850
and 7730 kHz. MFSK32 is broadcast during the second half hour of the show.
Reports to broadspectrumradio@gmail.com.
Thanks for your reception reports!
Kim
Kim Andrew Elliott, KD9XB
Producer and Presenter
Reporting on international broadcasting at https://twitter.com/kaedotcom
