which have been used to amplify radio waves since the station started operations. Each tube weighs about 70 kilograms, according to Matsui. The control room monitors the transmitters and other ...

High-quality remotes have three or four powerful IR transmitters set at different angles to shower the room ... a base station that accepts the RF and converts it to IR (see RF remote control).

Here to open the transmitting station officially are the Postmaster ... Images in the video include the control room at Alexandra Palace, the opening of the Sutton Coldfield transmitter and ...