IARU Amateur Satellite Frequency Coordination

 
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UiTMSAT-1 Updated: 27 Jun 2017   Responsible Operator Yasuhiro Tokunaga JG6YBW
Supporting Organisation Kyushu Institute of Technology  
Contact Person m111026y@mail.kyutech.jp.nospam  
Headline Details: UiTMSAT-1 is part of BIRDS-2 projectís three 1U CubeSat. All CubeSats in BIRDS-2 constellation have identical designs and utilize the same radio frequencies. UiTMSAT will be released from the ISS together with the other two CubeSats: MAYA-1 and BHUTAN-1. The primary mission of BIRDS-2 CubeSat constellation is to provide digital message relay service to the amateur radio community by means of an APRS digipeater onboard. The APRS digipeater onboard BIRDS-2 CubeSats will use 145.825 MHz for both receive and transmit. Digipeaterís 145.825MHz is a standard commercially available frequency used by other satellites such as ARISS and LAPAN-A2. Another mission of the BIRDS-2 CubeSat constellation is to demonstrate a store-and-forward (S&F) system. In this mission, our aim is to investigate technical challenges through experiments on appropriate data format, multiple access scheme, file-handling protocol while complying with limited operational time and power constraints. Another interesting application of BIRDS-2 CubeSat S&F system is for the satellites to collect data from remote ground sensors, store them onboard and download them to the different BIRDS-2 ground stations network. Further, students of Kyushu Institute of Technology will use BIRDS-2 CubeSat constellation to enhance research and experiment in the fields of single latch-up event detection, magnetic field measurements using a COTS anisotropic magnetometer, and flight testing of a COTS GPS chip which can be used for future CubeSat missions if proven effective. Students will also explore a passive attitude stabilization mechanism consisting of magnets and hysteresis dampers for proper orientation of camera on a CubeSat. All measurements and image data will be shared with the public on BIRDS-2 project website. Moveover, BIRDS-2 CubeSat constellation will expand amateur radio communication experiment on the operation of CubeSat constellation via a network of UHF/VHF amateur radio ground stations (started in BIRDS-1 CubeSat constellation project). All the above missions are envisioned to promote awareness of amateur radio communication and amateur satellites among the general public and students, especially in the participating nations of BIRDS-2 Project: Bhutan, Malaysia, Philippines, and Japan. Planning a deployment from the ISS in 2018.**Frequencies for downlink 437.375 MHz and for APRS uplink 145.825 MHz have been coordinated**
Application Date: 04 Jun 2017   Freq coordination completed on 27 Jun 2017

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