satellite-transponders



A Commercial 155MBitls SOH Satellite Modem Compatible with Existing 72 MHz SatelliteTransponders
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M Van Oevelen, K Berkers, D Delaruelle

ABSTRACT Many existing and planned communications satellites carry transponders of 72
MHz bandwidth spaced at 80 MHz intervals. Since 1985 a number of coding/modulation
schemes have been proposed for transmission of 140 and 155 Mbit/s over a 72 MHz