ملف:Biblis RFE RL 01.jpg

English: Shortwave transmitting station of the USA International Broadcasting Bureau near Biblis, Germany, used to broadcast programmes of Radio Free Europe/Radio Liberty into Eastern Europe and Russia. The antennas are mostly a type known as a curtain array, consisting of a rectangular array of wire dipole antennas suspended in front of a vertical reflector made of a "curtain" of parallel wires. They radiate a powerful beam of radio waves into the sky at a shallow angle just above the horizon, toward the target country. The radio waves are reflected back to Earth over the horizon by a layer of charged particles in the ionosphere.