Encyclopedia > Satmodem

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A satmodem is a modem used to establish data transfers with a Communications satellite.

There are two different types :

  • One-way satmodems (DVB-IP modems ) use a return channel not based on communication with the satellite, such as telephone or cable.

  • Two-way satmodems (DVB-RCS modems, also called astromodems) employ a satellite-based return channel as well; they do not need another connection. DVB-RCS is ETSI standard EN 301 790.

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