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© Peter Funk · CC BY-SA 4.0

Sender Köln-Raderthal

Cologne's medium-wave transmitter for WERAG, the WDR's predecessor, on air from 1927 to 1932. Its listed transmitter house in Köln-Raderthal still stands today.

Cologne had to beat out 93 other cities to win the transmitter. Konrad Adenauer, the city's mayor at the time, brought the facility to town.

At a Glance

Type
former medium-wave transmitter; the transmitter house survives
Location
Hitzelerstraße, at the western end of the Raderthaler Volkspark, Rodenkirchen district
Frequency and power
"Welle 283" (1,060 kHz), 4 kW
Architect
Theodor Willkens of Cologne
Last broadcast day
14 March 1932
Did you know?

Konrad Adenauer, then mayor of Cologne, won the transmitter for the city from among 94 competing cities – and its two 80 m high masts were made of specially treated pine wood.

Why Cologne Needed Its Own Transmitter

During the Allied occupation of the Rhineland and the Ruhr, building German-language transmitters there was prohibited. Only after British troops withdrew from the Cologne area in January 1926 could the Rhineland get transmitters of its own. On 1 January 1927, Westdeutsche Funkstunde AG moved from Münster to Cologne and from then on operated as WERAG. Its new transmitter in Langenberg, however, was too weak to cover Cologne as well.

© Heinz Reutersberg · CC BY-SA 4.0

Transmitter House and Wooden Masts

Construction began in May 1927 on a single-storey transmitter house with a large machine hall, flanked by two civil servants' apartments. The Berlin firm Hein, Lehmann und Co. erected two 80 m masts of specially treated pine nearby, 140 m apart. A multi-wire T-antenna, 6 m wide and 40 m long, hung between their tops. A successful test broadcast on 1 September was followed by the official launch on 15 December 1927.

© Heinz Reutersberg · CC BY-SA 4.0

The End of Broadcasting

Once the Langenberg transmitter's output grew to 60 kW, it reached Cologne too, and the Raderthal facility became redundant. From July 1932, the equipment and masts were dismantled. Overhauled and improved, the equipment later went back into service at the Hannover-Hainholz transmitter, on a different wavelength and with higher power.

© Heinz Reutersberg · CC BY-SA 4.0

The Building After 1932

Unlike the equipment, the building and its apartments stayed put. Around 1950 it was requisitioned, incorporated into the newly built Volkspark housing estate for members of the British Army of the Rhine, and used for events. Afterwards the City of Cologne used it, most recently as emergency housing. The building has been a listed monument since 1997, as the Volkspark estate had been before. It has stood empty since 2018 and needs renovation; in December 2018, the Rheinischer Verein für Denkmalpflege und Landschaftsschutz (Rhenish Association for Monument Preservation and Landscape Protection) presented it as its "Monument of the Month".

© Heinz Reutersberg · CC BY-SA 4.0

Plans for a Radio Museum

The "Radiomuseum ins Funkhaus" network, made up of the RadioMuseum Köln support association, the "Englische Siedlung" residents' initiative and public figures, is campaigning to move the RadioMuseum Köln into the former broadcasting house. Architecture students at TH Köln, led by Prof. Norbert Schöndeling and Prof. Eva-Maria Pape, developed concepts for it, published as a book and online. In September 2020, the FDP city council group and the Freie Wähler Köln proposed leasing the building rent-free for 25 years to a yet-to-be-founded sponsoring body, with three years' priority over private investors. The council formed after the 2020 local elections referred the proposal to the Cultural Committee, which rejected it by majority vote in April 2021.

Timeline

  1. 1926
    British occupation forces withdraw from the Cologne area (January)
  2. 1927
    Construction of the transmitter building and masts begins in Raderthal (May)
  3. 1927
    Official start of operation on wavelength 283 with 4 kW (15 December)
  4. 1932
    Broadcasting ceased (14 March)
  5. 1932
    Transmitter equipment dismantled, reused in Hannover-Hainholz (from July)
  6. um 1950
    Transmitter building requisitioned and integrated into the Volkspark housing estate
  7. 1997
    Transmitter building listed as a protected monument
  8. 2018
    Building vacant; named "Monument of the Month" in December

Map

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Volkspark Raderthal

Laid out by Fritz Encke from 1922, this listed park features a natural theatre, reading garden and dance lawn — a landmark of social green space in Cologne's south.

No longer exists 620 mParkweiher (Raderthal)© Gelli63 · CC BY-SA 4.0

Parkweiher (Raderthal)

since 1928

A circular artificial pond laid out between 1928 and 1932 in Cologne's Outer Green Belt in Raderthal, destroyed in World War II — today only a hollow remains as a ground monument.

1.3 kmBenedictine Convent of Cologne© Chris06 · CC0

Benedictine Convent of Cologne

4.7(48)· Google

Active convent of the Benedictine Sisters of the Most Holy Sacrament in Cologne-Raderberg, founded in 1890 and still home to a community of nuns today.

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Auto-generated, last verified: 2026-10-25

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