Despite known difficult reception conditions (Schaumburg district near Hanover) the winner has proven at Stiftung Warentest, that he was indeed a top receiving offers: Kathrein outdoor antenna. 3-year-old "all-in-one" antenna had to be replaced because it despite amplifier output of (supposedly) 38 dB at ZDF, 3Sat, Neo, ZDF Info, EinsFestival generally and in apparently unfavorable weather conditions or other disturbances always consistent but with with advancing age even poor image quality delivered (blocks formation). All this is over: Top reception at the same mounting position for all air channels with the Kathrein antenna and at only half as large power amplifiers, but with absolutely best disturbance resistance (according Warentest.)! So: Unrestricted buy recommendation!