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Nauen Transmitter Station
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Nauen Transmitter Station in Nauen, Havelland district, Brandenburg, Germany, is the oldest continuously operating radio transmitting installation in the world. Germany's first high power radio transm
Preserved Nauen transmitter building designed by Herman Muthesius, dating from 1920
Preserved Nauen transmitter building designed by Herman Muthesius, dating from 1920
Original 25 kW spark-gap transmitter built 1906, showing large 400 μF Leyden jar capacitor bank (rear) and vertical spark gaps (right)
Original 25 kW spark-gap transmitter built 1906, showing large 400 μF Leyden jar capacitor bank (rear) and vertical spark gaps (right)
Umbrella antenna of transmitter
Umbrella antenna of transmitter
100 kW quenched spark transmitter installed in 1913, said to be the most powerful transmitter in the world at the time.
100 kW quenched spark transmitter installed in 1913, said to be the most powerful transmitter in the world at the time.
Curtain array
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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 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 f
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
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
Former Radio France Internationale (RFI) Issoudun Relay station feeders and curtain arrays