Overseas transmitter Eilvese

OUI

Former location of the transmitter, today peat extraction area

Basic data

Place:

Eilvese ( Neustadt am Rübenberge )

Country:

Lower Saxony

Country:

Germany

Altitude :

43 m above sea level NHN

Coordinates: 52 ° 31 ′ 40 ″ N , 9 ° 24 ′ 24 ″ E

Use:

Telecommunication system

Demolition :

August 7, 1930

Data on the transmission system

Tower / mast 1
Height:	260 m
Construction time:	1911-1913
Operating time:	1914-1930

Tower / mast 2
Height:	4 × 122 m
Construction time:	4 × 1916
Operating time:	4 × 1916-1925

Tower / mast 3
Height:	4 × 139 m
Construction time:	4 × 1922-1925
Operating time:	4 × 1925-1930

Waveband :

VLF transmitter

Further data

Commissioning :

June 19, 1914

Position map

Overseas transmitter Eilvese

The overseas transmitter Eilvese had been a transmitter near Eilvese near Neustadt am Rübenberge in what is now Lower Saxony from its start-up in 1914 until its demolition in 1931 . The facility was built in the Dead Moor on a solid sand island. The boggy subsoil increased the transmission power due to the high groundwater level. Eilvese was chosen as the location of the transmitter because it was far enough away from other transmitters in Norddeich and on Borkum so that no interference could arise.

Transmitter

South of Eilvese and the B 6 in Toten Moor, after two years of construction, the 260 m high transmission mast (referred to at the time as the "Funkenturm") was completed in 1913 as the tallest German structure at the time.

When it was officially put into operation on June 19, 1914, Kaiser Wilhelm II stayed in Eilvese personally. He opened the system with a telegram to US President Woodrow Wilson , which was received by a remote station with the same technology in the United States in Tuckerton , New Jersey . The first contact between the two broadcasting stations was made on October 14, 1913.

After the USA entered the First World War , radio contact was broken off. Until its demolition in 1931, the transmitter sent telegrams overseas. Most of them were press matters, as private telegrams were sent by the major radio station in Nauen near Berlin. The electrical engineer and university professor Rudolf Goldschmidt developed the technical concept of the system .

Technology and modifications

The transmitter was built and operated by the high-frequency machine stock corporation for wireless telegraphy (HOMAG), a subsidiary of C. Lorenz AG , as a large radio station for long wave for the transmission of telegrams and for initially only experimental voice and audio transmissions overseas. There were machines transmitter of Rudolf Goldschmidt used, also known as Goldschmidt alternator are called. The antennas were suspended as a self-radiating transmitter mast from a 260-meter-high, guyed steel framework mast, which was electrically divided into two parts by glass insulators at a height of 145 meters .

The antenna of the Eilvese transmitter has been rebuilt several times. In 1913, antennas were stretched between the main mast and six 20-meter-high wooden masts that were arranged radially symmetrically around the central mast. A shield antenna for transmission frequencies around 30 kHz and a ring antenna for frequencies around 20 kHz were used as antennas. The ring antenna was stretched along the outer masts, while the shield antenna hung between the outer masts and the central mast. In 1915 the wooden outer masts were replaced by six guyed tubular steel masts of the Rendahl type with a height of 122 meters. Between 1922 and 1925 the antenna was rebuilt again, the 122 meter high Rendahl masts were replaced by four 139 meter high guyed transmitter masts arranged in a semicircle. Three independent triangular antennas were stretched between these and the central mast.

From November 1928 the Reichspostzentralamt began examining the extent to which this station would be useful for the Reichspost. Although the station, which was in operation for the last time on April 15, 1929, no longer met the technical requirements, it was acquired by the Deutsche Reichspost in 1930. However, it turned out to be inefficient to modernize the station. The transmitter was blown up on August 7, 1930.

Today's leftovers

Today only the office and administration building remains of the station, which is currently used as a residential building. Some wall remnants are still left of the former company building. There are also some remains of the mast foundations. Furthermore , remains of the antenna, such as insulators, are found again and again during peat extraction , since in 1930 the 250 meter high central mast was simply dropped into the bog.

Former office and administration building
Remnants of concrete from a transmission mast

literature

Hans Ehlich: Hagen, village on the Grinderwald ; Pp. 187-189

Web links

Commons : Eilvese transmitter - collection of pictures, videos and audio files

Individual evidence

↑ Hans Ehlich: Hagen, village on the Grinderwald ; P. 187

[1] Hans Ehlich: Hagen, village on the Grinderwald ; P. 187