Mariner 10, the first mission to use X- and S- bands launched and traveled towards Venus and Mercury. The three 64 meter antennas within the Deep Space Network (DSN) were able to track with the high rate telemetry. Downlink capabilities increased to 117.6 kilobits per second to fully utilize the new system.
› Mariner 10› Mariner Space Probes› SCaN History of the 1970’s