Abstract: A data transmission system and method is provided for the transmission data signal to one or receiving locations. A Multi Mode Compressive Sensing (MMCS) scheme is provided which adaptively changes the number of pilots used to reconstruct the Impulsive Noise (IN) depending on the IN's current severity so as to mitigate the same and stabilise the Bit Error Rate (BER) of the transmitted data signals and so improve the overall transmission system data throughput. The system can also allow for a variable IN mitigation range in order to allow the concurrent control of the BER and data throughput in the data transmission system.

Abstract: The invention relates to apparatus, system and a method to allow the generation of radio and/or television channels and, upon the user selection to change channel, the delay in the generation of the new channel to be minimized, especially when the new channel requires access authorization and/or data decrypting and/or descrambling to be performed. The data for the new channel is obtained and placed into a memory means in sequence until access authorization is achieved at which point the data is then retrieved in sequence from the memory rather than the live datastream.