The first amateur radio CubeSat from Mauritius is expected to be deployed from the International Space Station on June 22, 2021 at 10:55 GMT.
The IARU Satellite Frequency Coordination page reports:
MIR-SAT1 is a 1U CubeSat mission with the following objectives:
1. Verify the performance of the on-board subsystems by receiving telemetry from the satellite and establish communication to and from the satellite (command and control).
2. Collect images of Mauritius and the Mauritian EEZ for capacity, building, experiment and research.
3. Experimental communication with other islands via the satellite (for scientific and/or emergency purposes), through a Radio Amateur digipeater payload.
4. V/U 9600bps GMSK digipeater may be open for Radio Amateur communication worldwide when the satellite not used for all above.
A downlink on 436.925 MHz has been coordinated. Decoders for the amateur radio community and schools have been developed by Chris AC2CZ and Daniel EA4GPZ and will be available in the public domain on their WEB sites/Github, Links will be provided before launch on Tweeter, AMSAT-BB and Space Mauritius, see
For the digipeater operation it will be necessary to evaluate the power available after deployment to decide on opening same 24/7 or on scheduled time.
IARU Satellite Frequency Coordination pages http://amsat.org.uk/iaru/
source : https://amsat-uk.org/2021/06/13/mir-sat1-to-deploy-from-iss/?fbclid=IwAR065GPgk4CP0CQrpX0q6aG2IMpGEXeP-KsRdU4vN6JA_YYT4Z634f-vwYw