Curtain array
Videos
Curtain arrays are a class of large multielement directional radio transmitting wire antennas, used in the short-wave radio bands. They constitute a type of reflective array antenna, consisting of mul
Curtain arrays at Radio Free Europe transmitter site, Biblis, Germany
Curtain array at international shortwave broadcasting station, Moosbrunn, Austria. It consists of 4 columns of horizontal wire dipoles, suspended in front of a wire screen. The vertical parallel wire feedlines to each column of dipoles are visible. The entire antenna is mounted on a rotating truss structure, allowing it to be pointed in different directions.
Antenna G1 at Hörby shortwave station, which was operated by Radio Sweden but was shut down in 2011. It consisted of 16 horizontal wire dipoles in a 4×4 array, suspended in front of a wire screen. Each of the 4 columns of dipoles is fed by a separate open-wire transmission line, which can be seen exiting at an angle from the center of each column. The diagonal wires in the foreground are guy wires. The CCIR designation for this type of antenna (below) is HR 4/4/0.5
Former Radio France Internationale (RFI) Issoudun Relay station feeders and curtain arrays
Shortwave relay station
Videos
Shortwave relay stations are transmitter sites used by international broadcasters to extend their coverage to areas that cannot be reached easily from their home state. For example, the BBC operates a
ALLISS antenna as viewed underneath
Volga ALLISS Module
Ganges ALLISS Module