ISS SSTV MAI-75 Dec 1-2

Russian cosmonauts on the International Space Station (ISS) are planning to transmit Slow Scan TV images on 145.800 MHz FM 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) using a Kenwood TM-D710 transceiver.


December 1, 2021 (Wednesday) from 12:10 GMT until 19:10 GMT*
December 2, 2021 (Thursday) from 11:40 GMT until 17:20 GMT*

(Dates and times subject to change.)

The source of this information can be found at the amsat-uk website


from ARISS-SSTV images: December MAI experiment there is an update on the hours:

UPDATE - Nov 29

Looks like the times have shifted a little bit.

December 1 – Start: 12:25 UTC. Stop: 18:45 UTC

December 2 – Start: 12:00 UTC. Stop: 18:05 UTC

The transmitter is now enabled and you schedule observations. Remember that sometimes the transmission starts a little earlier and stops a little later than the scheduled, so I suggest you try schedule 30min before start and 30min after end.

On more note, as the signal is pretty strong, I suggest, even if your station has a horizon limit, you schedule from 0 to 0 degrees. To do this in Sign In with Auth0 before hitting calculate button, go to show advanced settings and set custom station horizon to 0.


new update from ARISS-SSTV images: December MAI experiment:

UPDATE - Nov 30

EVA on Nov 30 has been delayed until Dec 2. This eliminates Dec 2 as a possible transmission day for SSTV. Awaiting info for additional changes.