Asymmetrical modulation

<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.

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Astra Digital Radio
AST Research, Inc.
asymmetrical modulation
Asymmetric Digital Subscriber Line
Asymmetric Digital Subscriber Loop
Asynchronous Balanced Mode
Asynchronous Communications Interface Adapter