Although I myself, so to speak "by those" bin - or perhaps because of it - I am really very surprised at how great this part works! It really responds in ape-like speed and brings the best level really to the point! I measured it there. Otherwise here at this point no detailed technical gibberish to me! Even from expert point of view can not be beat! Easy even for beginners to use! Maybe one more tip for the undecided - the system should never be mounted around on the roof of a caravan! But on the contrary! You can easily set up through the supplied cable lengths always the cheapest place. And you do not think about whether one perhaps is with the car in the beam shade of a tree. The transport and storage in the included carrying case is also ideal. For here often "criticized" weight I can only say: "Well done!" Here, external influences such as wind / storm little chance! And additional mounting hardware as a stand or similar, which indeed has its weight is also not required. Strong buy recommendation so if you want to spend so much money because!