Multiplex broadcasting : Pulse time modulation and its Application to radiobroadcasting
F. J. Altman, J. H. Dyer · Electrical Engineering · 1947
MULTIPLEX BROADCASTING is the simultaneous transmission of several programs from a single transmitter and antenna. This system is of timely interest as it offers a logical solution to some of the difficulties encountered as future broadcast channel allocations are forced toward the microwave region of the radio spectrum.