Have the antenna mounted yesterday under our roof in the attic. Previously had only two (sometimes three) bars at the B2000 Vodafone. After connecting the antenna there are now stable 5 bars and a continuous speed of 20,000 (measured by speed.io). Oh, what I wanted to say, man needs these swinish expensive underground support for MIMO antennas that are offered here not !!! One piece rod antenna mounted transversely on an antenna mast and because the antennas with a minimum distance 30cm mounted (Important! A horizontal, one vertical) and already looft datt Internett smoothly. And yes, repeatedly criticized lack of assembly instructions ...... ha, so who does not have six left hands and four glass eyes get, all bolted to the mast even in his sleep :) For the price, the antenna can not be beat! From me the full five stars !!