Reception worse than before

Video at Amazon.com See The decision by an optimized DVBT antenna to watch out came the last scene, when the reception at my Elgato Eye TV Netstream DTT failed completely. The reviews here are so computationally positive and 15 are bearable. The antenna I received and have to say, purely subjective makes the antenna a very sophisticated look. I have it replaced by a simple original Elgato wire antenna and unfortunately had to find that the reception power of this antenna here min. Is 30% worse than that of the original antenna. I have tested many installation sites but none has brought nearly to receive the original antenna. The Elgato Eye TV Netstream DTT delivers to the antenna socket no 5V output voltage, so that I will now again take 15 into their own hands and I will establish an external 5V supply. The result I'll post it here. Until then, unfortunately only 2 stars. UPDATE 01/30/15: Today bought 5 Volt Power Inserter of Conrad and connected. Conclusion is sobering: No significant increase in the received power detected. DVBT antenna has also 5V power supply poorer! Reception than the standard wire antenna. Review therefore 1 star for the disappointing performance! UPDATE 01/31/15: For all who think in a small plastic housing -through which the antenna cable is läuft- any ne great electronics or damping eigebaut, please look at the video .....