Top Secret Operation Woodpecker

by Juli Scalzi

Title

Top Secret Operation Woodpecker

Artist

Juli Scalzi

Medium

Photograph - Photograph

Description

Metal construction of the Duga Radar aerial system is composed of two parts: a low-frequency antenna with a height of 135-150 meters and a lenght of 500 meters as well as a high-frequency antenna with a height of 100 meters and length of 250 meters. It was one of the Soviet's over-the-horizon radar stations designed for early detection of attacks of ballistic rockets.

The Duga systems were extremely powerful, over 10 MW in some cases, and broadcast in the shortwave radio bands. They appeared without warning, sounding like a sharp, repetitive tapping noise at 10 Hz, which led to it being nicknamed by shortwave listeners the Russian Woodpecker. The random frequency hops disrupted legitimate broadcasts, amateur radio operations, oceanic commercial aviation communications, utility transmissions, and resulted in thousands of complaints by many countries worldwide. The signal became such a nuisance that some receivers such as amateur radios and televisions actually began including 'Woodpecker Blankers' in their circuit designs in an effort to filter out the interference.

Uploaded

April 24th, 2018

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