FIELD: communication. SUBSTANCE: invention is related to field of transmission of digital data for multiplexing and of transmission of digital data including videodata and audiodata in active period of TV signal. Device for transmission of digital data has aid for reconstruction of digital data of n channels from recording medium, multiplexing aid to divide one frame of TV signal into n fields of transmission on line-by-line basis to multiplex digital data of n channels reconstructed by reconstruction aid for n proper fields of transmission on line-by-line basis and transmission aid. Process of transmission of digital data consists in division of one frame of TV signal into n fields of transmission on line-by-line basis, in multiplexing and transmission of digital data of n channels for n corresponding fields of transmission on line-by-line basis. EFFECT: processing of data in the order they were received by receiving side of transmission path in case digital data of collection of channels were multiplexed. 16 cl, 14 dwg
