Elektersidevõrk ning raadio- ja televisioonilevivõrk on sideseadmetest, -vahenditest, -liinidest, -rajatistest, -jaamadest ja -osistest koosnev süsteem, mille vahendusel sisestatakse, edastatakse ja väljastatakse sõnumeid.
An electrical communications network and a radio and television broadcasting network are a system consisting of communications equipment, facilities, lines, facilities, stations and components through which messages are input, transmitted and output.
