IARU Amateur Satellite Frequency Coordination

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MT-CUBE-2 (Robusta-1F) Updated: 05 Apr 2021   Responsible Operator Sebastien Hesse F4HUH
Supporting Organisation University of Montpellier  
Contact Person sebastien.hesse@umontpellier.fr.nospam  
Headline Details: A 1U CubeSat. The main mission objective of MT-CUBE-2 is to characterize the sensitivity of different types of memories with respect to the space radiation environment focusing on SEE. SEE shall be characterized (SEU, MCU, Latch-up) and mapped. Additionally, the radiation dose shall be monitored throughout the nominal mission lifetime. The second mission of the MT-CUBE-2 satellite is to demonstrate the good functionality of the upgraded ROBUSTA-1U platform. The third mission of the MT-CUBE-2 platform is to reemit in the broadcast “tweets” addressed to the Ham radio community. As a University platform, we have created two diplomas. The first is a professional degree "assembly, integration of space systems" at the University and Technology Institute of Nîmes (France). The second, 1 year after a masters degree, is “Development of spatial systems” at Polytech in Montpellier (France). In both fields, we educate young people about the world of radio and particularly to amateur radio. We invite young graduates to take the amateur radio exam and to register in radio clubs. At the same time, for the CELESTA and MT-CUBE-2 missions, we are technically supporting the creation of a ground station at the University and Technological Institute of Béziers (France). This allows theoretical instruction to be followed by practical instruction on the two satellites named above. They thus receive and decode the data received and send TCs in the form of "TWEET" on each of the satellites. A new ground station project is underway at the University and Technology Institute of Nîmes (France). About satellite mission, see ”https://www.dropbox.com/s/94uxenxvuu93hef/ROB1F_MT-CUBE-2_for_Radio_Ham_v2.0.pdf?dl=0 and https://www.dropbox.com/s/5tg8r1wqg552z6k/Spreadsheet%20Robusta%20decoding%20.xlsx?dl=0 We have developed an SDR transceiver station. The goal of this new station is to use the equipment that anyone can easily find on the market and the cheapest possible. This station is based on an ADAM Pluto SDR. This station will be validated during the mission of MT-CUBE-2 and CELESTA. It is hoped that this type of station will involve more and more young people in the amateur radio community in the future. Implication in development: F4HUH, F4IIS and F4IAI. Proposing a UHF using GMSK at 2k4 or 9k6 also possibly AFSK at 1k2 using AX25 frames. Planning a launch from Kourou in mid 2021 into a 70 degree orbit at approx 5860 km altitude with a period of 3.75 hours. expecting to fly with Celestra and Alpha. More info from https://csu.edu.umontpellier.fr/en/home/ **A downlink on 436.750 MHz has been coordinated**
Application Date: 04 Oct 2020   Freq coordination completed on 05 Apr 2021

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