Disclosed is a method of detecting signals at a receiver of a communication system with a multiple input multiple output antenna. The mounting apparatus includes a bracket, a first retaining member, and a second retaining member. In one embodiment, test-processing priority information is received, and is associated with machine-readable identifiers for standardized tests. The tool has the following advantages: 1. In order to prevent damage to the loaded goods by water dripping from the roof edge, an adjustable gutter underneath the roof edge is proposed.