Until I jog for Kathrein BZD got 30 indoor antenna. This should have the best results in the test. - So no stone unturned and bought this antenna and connected. - Best reception, no interference or dropouts more. Not even the antenna we had to align, optimum reception in every position. Now the flat antenna is located on the flat channel of the extractor and is not even visible.
With several friends brought the antenna for comparison to the existing antennas and tried. No more interference there. Better proof there is not; also now have the Kathrein BZD 30th
The only drawback: The antenna itself unfortunately does not have any power socket. Since the built-in antenna amplifier requires 5V DC, only the "remote supply" via the antenna cable from the receiver is possible. Alternatively, should an X4-TECH bias tee for approx. Of EUR 15 and a matching power supply be purchased separately.