Pocketqube
Executive Summary
The XCube is designed by Xavier Space Solutions (Accra, Ghana) as a technology demonstration mission for our locally developed satellite subsystems consisting of an On-Board Computer, Electrical Power System, Payload and Communication Module which was built using off-the-shelf components. The aim is to test the capacity of these systems in the harsh conditions in space. This satellite is developed as a PocketQube (measuring 5x5x5 cm and weighing 250g) which will provide free and open source IoT communications for the globe using inexpensive LoRa modules, where students (especially in Africa) will be able to communicate with a satellite with cheap ground station equipment.
General features
Processors: ATMEGA328
Critical Data Storage: TF-CARD (TBD)
Batteries voltages: 12V to 6.5V
Power rails available: 3.3V and 5V
Maximum Power output: 5V x 0.8A = 4 Watt
Frequency range: 410 – 510 MHz
Output Power (dBm): +20 dBm (max)
Rx Sensitivity: -139dbm
Bandwidth: Configurable, ranging from 62.5 kHz for LoRa and supporting transmission rates from 0.018 Kbps to 37.5 Kbps for LoRa and 1.2 Kbps to 300 Kbps for FSK.
Mission Objective
Primary Mission:
The XCube is designed as a technology demonstration of developed PocketQube for picosatellite applications.
Research and development of domestic technologies, capacity building and independence in satellite building knowledge of Ghana and Africa.
Secondary Mission
Establishment of an open source satellite IoT network based on LoRa.
Technology and acquired experience transfer to other sectors such as building early warning and environmental monitoring sensors and ground stations to support Disaster Risk Reduction activities.
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