Model : T750SE AP and Moving Vehicle are surrounded by many metal materials. In this environment, a thick bar made of AL material is blocked right in front of the AP. The MV may move away from the AP by as much as 49 meters. Even at this time, the signal size is not significantly reduced, but I heard that signal quality and signal size are separate. It is said that radio waves are reflected and reflected before reaching them. In fact, we know that a clear environment is good between AP and MV. Is it bad for the environment where the bar of thick AL material is blocked right in front? I would appreciate it if you could give me some advice on how to make things better.