Signal transmissionIn telecommunications, transmission is the process of sending or propagating an analog or digital signal via a medium that is wired, wireless, or fiber-optic.EtymologyThe origin of the words transmit and transmission and their derivatives go back to the Latin word transmittere, in turn formed by prefixing the preposition trans and the verb mittere.ProcessSignal transmission is the process of transferring information from one point to another, through different communication systems. These can be: electrical signals, optical signals, radio waves, or other forms of energy.