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Half-duplex

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Definition Edit

A half-duplex system provides for communication in both directions, but only one direction at a time (not simultaneously).

Overview Edit

Typically, once a party begins receiving a signal, it must wait for the transmitter to stop transmitting, before replying.

An example of a half-duplex system is a two-party system such as a "walkie-talkie" style two-way radio, wherein one must use "Over" or another previously-designated command to indicate the end of transmission, and ensure that only one party transmits at a time, because both parties transmit on the same frequency.


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