Terrestrial radio transmission of modulated digital signals, involves transmitting modulated digital signals to mobile receiver from two transmitters of different frequencies

摘要

The method involves transmitting modulated digital signals to a mobile receiver from two transmitters of different frequencies arranged in gaps (5a-9a) in which the frequency in one transmitter increases while the frequency in the other transmitter decreases. The transmitters (5-9) are alternately arranged along a line (4) for transmitting identically-modulated and synchronized digital signals. The receiver demodulates the received digital signals at the same time. An Independent claim is also included for the mobile receiver.