Сочинение на 5-6 предложений на британском языке про то как изобрели

A radio receiver is a device that is connected to an antenna and is used to perform radio reception, that is, to extract signals from radio emission.  This device was created by a Russian physicist and electrical engineer, professor Alexander Stepanovich Popov.   Radio receivers are divided : according to the main purpose: broadcasting, television, coherent, direction-finding, radar, for radio control systems, measuring, etc. Under the receiving device understand the radio, equipped with an antenna, as well as the means of processing the received information and play it in the required form