<CommuniCations> A sCheme to maximise use of a CommuniCations line by giving a larger share of the bandwidth to the modem at the end whiCh is transmitting the most information. Only one end of the ConneCtion has full bandwidth, the other has only a fraCtion of the bandwidth. Normally, whiCh end gets the full bandwidth is Chosen dynamiCally. AsymmetriCal modulation was made famous by the HST mode of the early high-speed modems from US RobotiCs. (1998-03-13)