IARU Amateur Satellite Frequency Coordination

 
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Proves Taygeta Updated: 01 Aug 2025   Responsible Operator Kelly Williams KO6JNV
Supporting Organisation California Polytechnic State University Pomona Bronco Space Lab  
Contact Person kwilliams1@cpp.edu.nospam  
Headline Details: PROVES Atlas is one of five satellites in the joint The PROVES Project CubeSat mission. The Pleiades Rapid Orbital Verification Experiment System PROVES Project is an extension of the Pleiades CubeSat Cluster, an inter university initiative aimed at testing open-source CubeSat architectures, promoting low cost CubeSats for educational access to space, and creating infrastructure that enhances access and interest in the radio art through satellite communications. PROVES - Taygeta is a 2U CubeSat with the following functions: 1. Provide digital packet relay services in both UHF and S-Band to the amateur radio community as a primary mission. 2. Allow amateur operators to route packets to other satellites in the PROVES cluster to be repeated. 3. Carry an imager that will provide “images of the day” that radio amateurs can downlink. 4. Carry a secondary flight processor that will oversee a radiation sensing experiment. All of the satellites participating in The PROVES Project mission will offer digital packet relay services to the amateur radio community as a primary mission. Whenever possible, radio amateurs will also be invited to attempt to route packets between the satellites using our open source DRIFT (Dynamic Relay for Intersatellite Fault Tolerance) protocol, published on our website. We will also publish the open source design of the PROVES Ground Station Kit. This design describes the essential hardware and software required for an amateur operator to construct a ground station capable of downlink and uplink to the PROVES satellites via UHF. PROVES - Taygeta’s radiation sensing experiment will attempt to conduct coarse energy spectroscopy on the radiation environment of Low Earth Orbit. Radio amateurs around the world will be able to act as citizen scientists, requesting the data directly from the satellite, and monitoring day to day how space weather affects the flux of high energy particles around our planet. Proposing a UHF downlink using LoRa with dynamic data rates between 250bps and 300kbps. Additionally n S-Band downlink of image data using 2Mbps FSK and an experiment in compact amateur radio mobile relay services using an auxiliary LoRa link on the S-Band radio at 467 bits/sec Planning a CLSI launch to the ISS NET April 2026. More info at https://docs.proveskit.space/en/latest/
Application Date: 25 Jul 2025   Freq coordination completed on

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