It took me a second TV for an antenna and DVB-T only did not even spend so much money.
For our main unit, I had a very expensive (70) Antenna bought with akitver power and am not completely satisfied, there is still misfiring.
The purchased here antenna contrast simply does what it is supposed ... At Samsung F6270 the antenna is working correctly at all (!!) transmitters, even when the transmitters that send only low power. So I am completely satisfied.
Also there is no interference by WLAN or UMTS networks.
Whether the antenna brings the specified gain I can not judge for lack of measurement technology. But I can say that the antenna operates very satisfactorily and clearly more powerful than an expensive active antenna with its own power supply.
Highly recommended!