G3RUH (Bob Read)

G3RUH, developed by Bob Read, is a digital communication system used in amateur radio to send data over radio waves, particularly for satellite communications. It employs a technique called PSK (Phase Shift Keying), which encodes information by shifting the phase of a carrier signal. G3RUH is notable for its efficient use of bandwidth and robustness in noisy radio environments. It allows radio operators to transmit data like text or images reliably over long distances, making it valuable for experiments, education, and satellite communication projects within the amateur radio community.