Some new buildings such as auditoriums have installed wire mesh in the walls, which prevents any signal getting through, but does not contravene the jamming laws.

• (即使在大多数国家，如美国，这种设备的使用是非法的)在获得法律允许的前提下，一些新建起的建筑物，例如演奏厅安装起网墙阻止信号的接通。