Installing ceramic or porcelain tile is both an art and a science. Tile installers must know the composition of the tiles as well as how to lay them in place attractively. Besides the normal costs of labor and materials, a tile project's costs vary by the type of sub-flooring to be used as a foundation for the tile.
Three things can cause an EMI problem: A signal source creates some kind of noise, there is a transmission path for the noise, and/or there is a receiver sensitive enough to be distorted by the noise, as shown in Figure 1.
Fig. 1. EMI sources. The noise source can be inside or outside the power supply. Tackling the noise problem at the source means reducing the emission levels â for example, by lowering noise amplitudes. Different coupling mechanisms exist for noise, and many EMI countermeasures focus on these; however, they overlook