Soviet submarine communications

Soviet submarine communications involved secure, robust systems designed to link submarines with command centers while submerged. They used encrypted radio signals, extremely low frequency (ELF) transmissions to reach submarines underwater, and satellite links when surfaced. These channels ensured vital command, navigation, and safety data could be exchanged without revealing the submarine’s location or being intercepted by adversaries. Advances included sophisticated encryption and redundant communication methods to maintain connectivity even in hostile environments, ensuring operational security and strategic control during the Cold War era.