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Proximity-1 Space Link Protocol is a short haul delivery communications protocol designed to establish a two-way communications link between a lander and an orbiter, negotiate data rate and communications mode, and reliably deliver data during short orbiter-to-surface contacts. Developed by Consultative Committee for Space Data Systems and documented in a number of CCSDS RecommendationsProximity-1 is implemented on Mars Exploration Rovers, Mars Odyssey, Mars Reconnaissance Orbiter, Mars Express as well as on Phoenix Mars Lander. * 437.1000 MHz * 440.7425 MHz * 444.3850 MHz * 448.0275 MHz

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  • Proximity-1 Space Link Protocol is a short haul delivery communications protocol designed to establish a two-way communications link between a lander and an orbiter, negotiate data rate and communications mode, and reliably deliver data during short orbiter-to-surface contacts. Developed by Consultative Committee for Space Data Systems and documented in a number of CCSDS RecommendationsProximity-1 is implemented on Mars Exploration Rovers, Mars Odyssey, Mars Reconnaissance Orbiter, Mars Express as well as on Phoenix Mars Lander. The frequency band used by this protocol is in the 70-centimeter band so as to reduce complexity of the ground craft, using these frequencies: * 437.1000 MHz * 440.7425 MHz * 444.3850 MHz * 448.0275 MHz However, using this protocol over the standard CCSDS frequency bands is perfectly acceptable if the UHF allocation is not usable. (en)
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  • Proximity-1 Space Link Protocol is a short haul delivery communications protocol designed to establish a two-way communications link between a lander and an orbiter, negotiate data rate and communications mode, and reliably deliver data during short orbiter-to-surface contacts. Developed by Consultative Committee for Space Data Systems and documented in a number of CCSDS RecommendationsProximity-1 is implemented on Mars Exploration Rovers, Mars Odyssey, Mars Reconnaissance Orbiter, Mars Express as well as on Phoenix Mars Lander. * 437.1000 MHz * 440.7425 MHz * 444.3850 MHz * 448.0275 MHz (en)
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  • Proximity-1 Space Link Protocol (en)
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