The whole timing of the DAB system relies on this number.<\/p>\n\n\n\n
It stands for the clock frequency of 2048 kHz<\/strong>, from where all other timing is derived.<\/p>\n\n\n\n The heart of DAB, the COFDM modulation, is based on 2048 samples<\/strong> @ a sample rate of 2048 kHz<\/strong>, resulting in a symbol length of 1 ms.<\/p>\n\n\n\n 1 ms is related to the distance of 1 kHz of all the carriers. It is the condition to obtain orthogonal carriers which will not have any carrier interference between each other.<\/p>\n\n\n\n The symbol of 1 ms corresponds to 2048<\/strong> times the clock period of 2048 kHz<\/strong>.<\/p>\n\n\n\n 1\/2048 kHz * 2048 = 1 ms<\/strong><\/p>\n\n\n\n The number 2048<\/strong> is the number on which DAB is built and will pop up in many technical articles about DAB.<\/p>\n\n\n\n The clock period indicated by the letter T equals 1\/2048<\/strong> kHz or 0,48828125 \u00b5s.<\/p>\n\n\n\n It is essential to understand the above to understand DAB’s working principles. <\/p>\n\n\n\n