IARU Amateur Satellite Frequency Coordination
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IARU Amateur Satellite Frequency Coordination |
| OMUSAT-III | Updated: 28 Sep 2025 | Responsible Operator | Nobuaki Sasai JL3YTD | |
| Supporting Organisation | Small Spacecraft Systems Research Center of Osaka Metropolitan University | |||
| Contact Person | sssrc-com@googlegroups.com.nospam | |||
| Headline Details: Amateur A 2U CubeSat Radio Mission Equip a satellite with a camera to capture images of the Earth. Both the captured images and images pre-loaded before launch will be transmitted to amateur radio operators via SSTV (Slow Scan Television). Membrane Imaging Mission The membrane used for the main mission is utilized as both a deployment experiment and as the subject for imaging. The deployed membrane will be photographed using a technique called "fringe projection method", and the images will be stored within the satellite. These stored images will be downlinked to the ground station, where image analysis of the membrane will be conducted. In our mission, we will capture multiple images, automatically select the ones with the Earth in the field of view while on orbit, and then downlink them after embedding our call sign. Furthermore, we will divide a single image into multiple segments, like a puzzle, and transmit them over several passes. We believe this method will enable us to downlink relatively large images even during short communication passes. Through this SSTV mission, we aim not only to enhance our organization's wireless communication capabilities but also to widely convey the appeal of SSTV technology to the entire amateur radio community, pursuing mutual technological advancement together. Proposing a UHF downlink using CW AFSK/GMSK and SSTV at 1k2 and 9k6 bps. Planning a 2027/02 launch from Hokkaido into a 300x 100 km orbit in a 42.2 degree inclination. Further info at https://www.omu.ac.jp/eng/sssrc/satellite/omusat-3/index.html | ||||
| Application Date: | 25 Sep 2025 | Freq coordination completed on | ||
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