The AlfaCrux satellite operates on the radio amateur frequencies in the UHF band. It hosts a digipeater, currently set to repeat APRS digital packets, which can be accessed by any radio amateur. Instructions for the use of the digipeater will be available in this webpage. In addition, any radio amateur is invited to receive the satellite telemetry, share it, and cooperate in the SDR experiments. Data received by the radio amateur community around the world will be collected and sorted along with data downloaded by the command-and-control ground station PT2ENE of the Laboratory of Simulation and Control of Aerospace Systems, the LODESTAR, University of Brasilia, UnB. An online form is available below to send the collected data along with some extra information. An electronic QSL card will be sent by email to those that have sent the information using our online form. The telemetry data packets can be seen and analyzed in the AlfaCrux Mission Control platform. Moreover, a description of the telemetry beacons can be seen here.

The AlfaCrux team at the University of Brasilia informs that the AlfaCrux satellite project, an educational and technological demonstration mission in the area of telecommunication, is in full compliance with the national regulatory framework for telecommunications. The project's Coordination complied with all procedures in the National Telecommunications Agency (ANATEL) for usage of orbit and spectrum resources as a Brazilian satellite, having the Agency complied with all necessary procedures in the International Telecommunications Union (ITU), and officially requested the frequency coordination to the IARU. We would like to reinforce that the frequency band coordination with the countries identified by ITU is concluded, and that on November 1st, 2022, the BR IFIC 2983 was published confirming that the AlfaCrux frequency assignments was properly recorded in the ITU Master Register under Article 11 of the Radio Regulations. Moreover, the applications that are under development in this project are fully in accordance with the radiocommunication and telecommunications services associated to the operation of these frequency bands. The AlfaCrux team would like to thank Sir Hans P. Blondeel Timmerman (PB2T), IARU Satellite Advisor, for providing the AlfaCrux coordination letter on July 5, 2022.

We also inform that on July 27, 2022, 01:56 UTC, the AlfaCrux changes to nominal mode, and it is now starting the payload commissioning in orbit. The main services are still not active, only the transmission of beacons with telemetry packets at 437.100 MHz, GMSK modulation, 4800 bps, and circular polarization. Additional information will be updated on this website, the official page of the mission, including details for the correct use of the services by the radio amateur community in the future after finishing the LEOP. Wanna know what is going on at the AlfaCrux control center? Check our mission planner for more information!