Daniel Estévez, EA4GPZ decodes a commercial satellite from Hydra Space transmitting in the amateur satellite 435 MHz band using the same modulation, coding and telemetry format as HADES-R, an AMSAT-EA satellite launched at the same time.

Decoding HYDRA-T

“Some days ago, people in the LibreSpace forums started noticing that HYDRA-T was transmitting telemetry on 437.780 MHz, which is a frequency that belongs to the amateur satellite service 435 – 438 MHz band. This was acknowledged by Félix Páez EA4GQS, who is AMSAT-EA’s president and Hydra Space Software and Satellite Operations Manager. Félix expressed that HYDRA-T should not be transmitting in this frequency even if it has a license to do so”.