The title says it all. ZDF HD / digital (cable Unitymedia) and its transmitters on the same frequency were not receivable with me. The signal strength was almost always at 0%. But with this cable 70% signal strength were directly without additional amplification, appears. The other frequencies are now even at 95-100% signal strength. Added to this are the angle bushings in the head are rotatable course. So I can only recommend the cable. Thanks!