Sender Aachen-Stolberg, Communication tower in Stolberg, Germany

Sender Aachen-Stolberg is a 231-metre guyed steel lattice mast on the Donnerberg ridge in Stolberg, about 1 km east of the town centre at 285 m above sea level. Built in 1993, it carries antennas for FM radio, DAB+ on channel 11D and DVB-T2 HD television, and is the WDR's second-westernmost transmitter site after Kleve.

The current mast was erected in 1993, replacing an earlier antenna tower from 1951 that originally operated as a medium wave transmitter. This replacement marked a significant modernization of broadcast infrastructure in the border region.

The mast stands in the Donnerberg district of Stolberg, about 1 km east of the town centre on a ridge at 285 m above sea level. Its FM and DAB+ signals are aimed at the Euregio Maas-Rhein, the Voreifel, the Jülich-Zülpicher Börde and the northern German-speaking Community in East Belgium.

The area around the mast is accessible to the public, though the tower itself is not open to visitors. The hilltop location offers good views of the antenna configuration and surrounding landscape.

The mast stands 231 metres tall on the Donnerberg ridge at 285 metres above sea level, about 1 km east of Stolberg town centre. It is the WDR's second-westernmost transmitter site after Kleve. Until 31 December 1993 the site also broadcast on medium wave at 701 kHz, later 702 kHz, with 5 kW.