Abstract :
In this paper a communication system is described which uses pulse-time modulation. It provides 24 channels of the quality recommended by the C.C.I.F. for the transmission of speech over international trunk circuits. The pulse-multiplex terminals operate in conjunction with radio equipment operating in the 2000 Mc/s band; this is not described here. The multiplexing equipment and its mode of operation are described in some detail¿in particular the distributor and modulator. Performance figures are given.
