Starting time of transmsissions will be tentatively 25 December 2024 at 14.55 UTC; ending time will be tentatively 5 January 2025, 14: 20 UTC.
On the ISS, will be used the Service Module radio, ISS callsign will be RS0ISS; images will be transmitted on 145.800 MHz FM, the SSTV mode will be PD120. Public is invited to upload decoded images in the ARISS gallery, area "Series 23 Holiday 2025" at: https://ariss-usa.org/ARISS_SSTV/
Once you've submitted, just clicking on the dedicated button you can apply for the official ARISS SSTV award. Also, you can request the ARISS QSL contacting the European QSL bureau:
https://www.ariss-eu.org/index.php/ariss-station/european-qsl-bureau
To support everyone interested in such events, the European Space Agency released tutorials about how to receive pictures transmitted over amateur radio by the International Space Station: you can find them on https://issfanclub.eu/2024/11/08/esa-tips-how-to-get-pictures-from-the-international-space-station-via-amateur-radio-2/
More, it's always possible to decode the audio signals coming from the WebSDR at Goonhilly Earth Stationhttps://vhf-goonhilly.batc.org.uk/
Watch ARISS social media @ARISS_intl for official updates, since changes can occur.
73, Micol Ivancic IU2LXR
ARISS Education Ambassador for European Region