▁south - s out heast ▁of ▁the ▁observation ▁tower , ▁a ▁transmission ▁tower , ▁the ▁S ender ▁Bla uen , ▁was ▁built . ▁It ▁is ▁not ▁open ▁to ▁the ▁public ▁and ▁restrict s ▁the ▁view ▁of ▁the ▁Al ps ▁from ▁the ▁observation ▁tower . ▁ ▁N ortheast ▁of ▁the ▁Hoch bla uen , ▁at ▁a ▁height ▁of ▁, ▁lies ▁what ▁is ▁probably ▁the ▁highest ▁castle ▁site ▁in ▁Baden - W ür tt ember gs , ▁Stock berg ▁Castle . ▁ ▁Since ▁summer ▁ 2 0 1 1 ▁there ▁have ▁been ▁discuss ions ▁about ▁ere ct ing ▁a ▁wind ▁farm ▁on ▁Bla uen ▁with ▁three ▁gener ators ▁to ▁produce ▁electric ity . ▁ ▁Trans mission ▁tower ▁Also ▁at ▁the ▁peak ▁stands ▁a ▁ 9 3 - met re - high ▁Deutsche ▁Tele kom ▁V H F ▁and ▁mic row ave ▁radio ▁relay ▁tower . ▁The ▁tower ▁is ▁a ▁rein for ced ▁concrete ▁Typ ent urm , ▁built ▁in ▁ 1 9 8 5 . ▁The ▁following ▁radio ▁stations ▁are ▁broadcast ▁from ▁this ▁tower : ▁S WR 1 ▁Baden - W ür ttemberg ▁( 8 9 . 2 ▁FM / 8 . 4   k W ), ▁S WR 2 ▁( 9 2 . 6 ▁FM / 8 . 4   k W ), ▁S WR 3 ▁( 9 7 . 0 ▁FM / 8 , 4   k W ), ▁Deutschland f unk ▁( 1 0 5 . 1 ▁FM / 1 0   k W ), ▁Radio ▁Reg en b ogen ▁( 1