Okay, for the price, so do not expect that we make miracles. We're well on a product called "passive" with a gain announced 5db, period. In outdoor open area, it properly discharging its responsibilities, of course with the surrounding hazards (if nearby a power line or MT .. HT..etc behind a reinforced double glazing ...) It was found that TNT is all or nothing (and after ... between nothing and everything, there is our disturbing villains, I appointed mosaic artifacts ...) and she remains dependent. A double good point for the magnetic base ... very ... "magnetic" ... and then to have it tested on a sheet of approximately 1m2, stability is improving a little. Supplied with 4m cable, mounted on plug F + TV plug adapter. To make the "nomadic" casual, it does not take place and that's good.