# Amateur Radio Operators Successfully Command Satellite Using Voice Instructions A cubesat in orbit executed a voice-activated command to launch a video game. - **Source:** [Gizmodo](https://brifing.si/source/63382431-cef0-4c41-883e-2f88dc21351e) - **Published:** 2026-11-05 - **Topic:** [technology](https://brifing.si/c/technology) - **Original article:** - **On Brifing:** https://brifing.si/s/9fc5d2ec-a1fe-4372-b689-7a1c274e1d68 ## Voice Command Milestone Amateur radio operators successfully sent a spoken command to the European Space Agency's OPS-SAT PRETTY satellite. By transmitting the phrase PRETTY PLAY DOOM, the team triggered the 1993 video game on the orbiting cubesat. This event marks the first time a satellite has autonomously recognized and executed a direct verbal instruction. ## Technical Execution Process The experiment utilized the experimental cubesat launched in 2023. Operators transmitted radio signals that the spacecraft captured and processed through an onboard pipeline. An AI model converted the audio into text, allowing the computer to decode the command and launch the software, eventually downlinking a postcard image of the successful result. ## Testing Methodology Details The team conducted two distinct tests on July 27 to verify the system. During the morning session, they broadcast a synthesized voice message on a continuous loop. In the evening, an operator spoke directly into a microphone. Both attempts proved successful, demonstrating the satellite's ability to recover voice data from background noise. ## Standard Telecommanding Comparison Traditional satellite operations rely on telecommanding, where ground stations beam encoded digital packets via high-gain antennas. These signals require specialized software to adjust spacecraft orientation or system settings. In contrast, this new voice-based approach bypasses the need for manual digital encoding, allowing for more intuitive interaction with complex orbital hardware systems. ## Potential Emergency Applications Researchers believe voice recognition could revolutionize emergency response protocols. By enabling satellites to listen for distress calls, the system could potentially relay mayday signals immediately to authorities. This capability might reduce reliance on traditional maritime or ground-based rescue coordination, providing a faster, more responsive network for global emergency monitoring and communication. ## Astronomical Observation Prospects Beyond emergency services, the technology could enhance space-based scientific observations. Georges Labrèche, founder of Tanagra Space, suggests training models to recognize specific astronomical patterns, such as gamma-ray bursts or black hole collisions. Onboard processing would allow satellites to detect these events immediately, rather than waiting for ground-based analysis of large datasets. ## Autonomous Processing Capabilities The OPS-SAT PRETTY satellite features a dedicated processing pipeline designed specifically for voice command recognition. This onboard intelligence allows the spacecraft to act autonomously without constant ground station intervention. Such advancements represent a shift toward smarter satellites capable of interpreting complex inputs and performing tasks independently while maintaining high operational reliability. ## Future Operational Implications While the Doom demonstration was primarily a proof-of-concept, it highlights the growing role of machine learning in space exploration. As satellites become more autonomous, the ability to process natural language or complex signal patterns will likely become standard. This evolution promises to increase the efficiency and versatility of future orbital missions. ## Sources covering this story - https://gizmodo.com/an-amateur-radio-operator-told-a-satellite-to-play-doom-and-it-listened-2000835488 — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._