The present invention relates to a method and apparatus for function testing of a base station system in a wireless communication system, wherein the base station system comprises at least two antennas and at least two transceivers, and said antennas are intended to cover a target area. A damper assembly is included that has an engine-side cover plate facing the engine, a transmission-side cover plate facing the transmission, and a retaining member between the cover plates. The method may further include storing the determined color value. The first contact is coupled to the substrate and spaced apart from the first bridge contact by a gap.