IARU Amateur Satellite Frequency Coordination
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IARU Amateur Satellite Frequency Coordination |
| FOSM-1 | Updated: 29 Jul 2025 | Responsible Operator | Loïc Féjoz F4JXQ | |
| Supporting Organisation | Open Space Makers | |||
| Contact Person | loic@fejoz.net.nospam | |||
| Headline Details: A 1U payload in a 16U host satellite. FOSM-1 spacestation is a payload designed by F4JXQ, F4MHW, and F4IWP for self-training, but also to publicly share technical investigation. Indeed they are members of a non-profit organization called Federation Open Space Makers (FOSM). The organization wants to lead the way to an open space ecosystem. Note that while our space station is part of a shared platform, none of the missions of our space station is related to routine space telecommands, telemetry, or other operations of the multi-service satellite. The main mission of the project is to investigate and demonstrate agility of amateur communication protocols and amateur spacecraft programs applied on spacestation payload. For that purpose, secondary missions are: • digipeating (data) traffic from amateur operators world-wide, in several modes like CATS and M17. • providing mailboxes for amateur use world-wide, in several modes, like CATS and AX25 • sending telecommands to flat-sats and terrestrial rovers built by French radio amateurs with students, in digital modes like AX25 and CCSDS USLP. • sending images and other data computed by the execution of software programs taking our camera as data input, in modes like SSDV over AX25, CW, APRS, CATS. • sending beacons in several modes, like AX25, ECSD SDLP, CW, M17. So as to raise interest in STEAM, the spacecraft program will be updated in collaboration with schools, youth clubs, and other individuals that are open to collaborate. Public announcements will be published on our web page for everyone to interact with. Our space station contributes by enabling the test of new digital data modes. It also implied that our platform can switch between a limited set of predefined modulations -- (G)FSK, 4(G)FSK, (G)MSK, OOK --. It also contributes to better understand what are the (cyber)security and safety constraints of spacecraft programs supporting those modulations’ changes, and secondary missions. Based on the two former capabilities, amateur operators around the globe can participate by actually interacting with our space station for some secondary missions like when it is a digipeater or a mailbox system. For other missions, it will be reporting quality of reception to determine protocol’s strengths and weakness. Finally, amateur operators could also implement spacecraft programs targeting the architecture of our space station. After validation on our ends and ensuring it fits the coordination declaration, rules and regulations of the licensing administration, we could update our space station for them to run those experiments. We foresee that some of those programs (or more technically precise, the configuration’s description) will actually be developed by schools, science clubs, or similar with the support of radio amateur operators. Program development and signal reception joint-activities participates to the outreach of radio amateur service, and interests in Science Technology Engineering Art Math (STEAM). No one operating the space station has pecuniary interest. All secondary missions of our space station either provide communication resources for the general amateur radio community, either (incl. primary mission) support self-training and technical investigations related to radio technique. Some mission incidentally benefits students and educators. Note that FOSM’s payload not only include described space station, but also one educational experiment. The management and telemetry of this experiment is not using said space station but benefit from shared services from satellite platform. Similarly, the update of our space station will benefit from some shared services. Detailed description of interactions of services will be available online on the public web page. Proposing a UHF downlink using a variety of modes and modulations. CW, 2-FSK, 2-GFSK and 4-GFSK , at 2k4 or 9k6baud with AX25 or M17. Planning a Space X launch from Vandenberg into a 520 km polar orbit in February 2026. More info at https://www.federation-openspacemakers.com/fr/participer/projets/phoenix-infrastructure-informatique-orbi/fosm-1/ | ||||
| Application Date: | 29 Jul 2025 | Freq coordination completed on | ||
The IARU Amateur Satellite Frequency Coordination Status pages are hosted
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