6-Unit Synchronous Time-Division 2-3-Channel Multiplex Telegraph System for Use over FMVFT Channels Spaced at 120 Hz for Connection to Standardized Teleprinter Networks - Telegraph Transmission (Study Group IX) 6 pp
considering
time-subdivision of a standardized telegraph channel (Recommendation R.35);
(a) that synchro DUS modulation enables a larger number of telegraph cha nels to be constituted by
(b) that such an increase may be of interest in the case of long