@Walter Hinteler,
The official translation is "broadcasting fee", and the levying of public broadcasting fees (Rundfunkbeitrag) for private dwellings and in the commercial and non-private sector is for the most part* compatible with the Constitution.
*The levying of public broadcasting fees for secondary dwellings is, however, not compatible with the general guarantee.
(Judgement of 18 July 2018 [1 BvR 1675/16, 1 BvR 981/17, 1 BvR 836/17, 1 BvR 745/17] of the Federal Constitutional Court)