What is Simplex Communication?
We define simplex communication as communication that only operates in one direction.
A couple of obvious examples of Simplex Communication would be Radio or Television Broadcasting.
Unless you count being able to place a phone call to your Radio or TV Station, you can’t usually send traffic back to the Radio or TV Station transmitter.
ITU (International Telecommunication Union) does define Simplex Communication as a communication channel that operates in one direction at a time but that may be reversible (communication can occur in the opposite direction).
I would argue that ITU’s definition is that for Half-Duplex Communication.
Other basic terms for communications include: