On Tuesday, February 19, François Rancy — Director of the Radiocommunication Bureau (ITU-R) of the International Telecommunication Union (ITU) — announced the simultaneous adoption and approval by correspondence of a new Recommendation entitled Telegraphic Alphabet for Data Communication by Phase Shift Keying at 31 Baud in the Amateur and Amateur-Satellite Services. The alphabet — commonly c…
American Radio Relay League | Ham Radio Association and Resources
At approximately 9:45 AM EST (1445 UTC) on Tuesday, February 19, the International Space Station (ISS) experienced a loss of communication with the ground. At that time, flight controllers in Houston were updating the software onboard the ISS’s flight computers when one of the ISS’s data relay systems malfunctioned. The primary computer that controls critical station functions defaulted to a ba…
American Radio Relay League | Ham Radio Association and Resources