IARU Amateur Satellite Frequency Coordination

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TBEX Updated: 27 Feb 2018   Responsible Operator James W. Cutler n/a
Supporting Organisation University of Michigan  
Contact Person jwcutler@umich.edu.nospam  
Headline Details: The TBEX science mission will consist of a tandem pair of 3U (30cm x 10cm x 10cm) CubeSats, each carrying tri-frequency radio beacons, in near-identical, low-inclination orbits, and a cluster of diagnostic sensors on five islands in the Central Pacific sector, all with the objective of discovering how the dynamics and processes in the troposphere can act to cause variability in the behavior of the upper atmosphere and ionosphere and to understand the plasma-neutral coupling processes that give rise to local, regional, and global-scale structures and dynamics in the atmosphere-ionosphere-magnetosphere system. The TBEx satellites will be developed jointly by SRI International and the Michigan eXploration Lab (MXL) team at the University of Michigan. Requesting frequencies for a UHF 9k6 GMSK AX25 system.Planning a Feb 2017 launch via SpaceX from Cape Canaveral into an 800x300km 28 degree inclination orbit. **Downlinks for TBEX-A on 437.485 MHz and for TBEX-B on 437.535 MHz have been coordinated****Now expecting to launch in June 2018**
Application Date: 12 May 2016   Freq coordination completed on 31 May 2016

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