FUNcube-1 / AO73 Update
m5aka
AMSAT-UK
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Russian cosmonauts on the International Space Station (ISS) are planning to transmit Slow Scan TV (SSTV) images on 145.800 MHz FM probably using the SSTV mode PD-120.
The transmissions are part of the Moscow Aviation Institute SSTV experiment (MAI-75) and will be made from the amateur radio station RS0ISS in the Russian ISS Service module (Zvezda). This will be the first time the experiment will use the recently installed Kenwood D710GA.
• June 8 Setup and activation 09:45-10:15 GMT, stop about 15:00 GMT*
• June 9 start about 08:35 GMT, stop about 16:15 GMT*
*Dates and times may be subject to change.
The signal should be receivable on a handheld with a 1/4 wave whip. If your rig has selectable FM filters try the wider filter for 25 kHz channel spacing.
You can get predictions for the ISS pass times at https://www.amsat.org/track/
ARISS SSTV Blog https://ariss-sstv.blogspot.com/
Useful SSTV info and links https://amsat-uk.org/beginners/iss-sstv/
m5aka
AMSAT-UK
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AO-73/FUNcube-1 is transmitting the Jubilee Fitter message on the BPSK Telemetry beacon which has a nominal frequency of 145.935 MHz +/ Doppler.
The AO-73/FUNcube-1 Dashboard App can be downloaded from
https://funcube.org.uk/working-documents/funcube-telemetry-dashboard/
Data Warehouse http://data.amsat-uk.org/missions
Online tracking of AO-73 https://www.n2yo.com/satellite/?s=39444
m5aka
AMSAT-UK
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 100vw, 593px»></a></p>
<p>These results have been developed based the ITU‑R defined receiver protection level for the GALILEO RNSS. For the narrow band modes this is ‑134.5dBW and for the wideband modes is ‑140dBW/MHz. In addition, measurement campaigns have shown that an improvement in the compatibility potential can be seen if the amateur signals avoid the centre portion of the GALILEO receiver passband.</p>
<p>Of course the studies cannot take into account every possibility that might mitigate the problem (e.g clutter, terrain blocking etc.) but it is clear that the potential for interference is considerable.</p>
<p>The IARU is working hard to ensure that the amateur service can continue to develop in this band and allow all the amateur applications in use today to continue. However, given the heavy spectrum occupancy of the band by the various RNSS systems it is evident that proposals will come calling to restrict our ability to operate in certain parts of the band and at the power levels possible today. IARU is totally engaged in the discussion of these considerations and these will continue within ITU‑R (and other regional bodies).</p>
<p>The IARU summary report on the WP4C meeting can be found at<br />
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Link to the full draft study https://storage.iaru-r1.org/index.php/s/BtpxWjL7La7syr7
Source IARU Region 1 https://iaru-r1.org/
m5aka
AMSAT-UK
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This is the first call for speakers for the AMSAT-UK International Space Colloquium 2022 to be held as part of the RSGB Convention on October 8-9 at the Kents Hill Park Conference Centre, Timbold Drive, Milton Keynes, MK7 6BZ.
https://amsat-uk.org/colloquium/
AMSAT-UK invite speakers, about amateur radio, space and associated activities, for this event.
Submissions should be sent via e-mail: to dave at g4dpz.me.uk
AMSAT-UK also invites anyone with requests for Program Topics to submit them as soon as possible.
Likewise if anyone knows of a good speaker on subjects of interest to the audience, please send us details.
m5aka
AMSAT-UK
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