Radio Kootwijk

The housing accommodations of Radio Kootwijk arose as a result of the building of a shortwave radio transmitter with the same name, starting in 1918. The transmitter played an important role in the 20th century as a communication facility between the Netherlands and its then colony of Dutch East Indies. In 1923 Dutch PTT started trans-oceanic telegraphy using a longwave transmitter (a 400 kW high frequency alternator) from the German Telefunken company under the callsign PCG, on 24 kHz and 48 kHz. By 1925 the longwave transmitter was changed by a shortwave tube based, electronic transmitter which had a much better performance due to the better propagation of short waves. With this new technology, in 1928 a radio-telephonic connection was established. At the end of World War II, the German occupying forces blew up the transmitter. Afterward some of the radio towers were rebuilt.[3]