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.
In all cases, EMI/RFI occurs because of a combination of three factors: A source; A transmission path; A response (at least one response is unplanned) EMI/RFI control refers to the process of making design changes or adjustments of the signa or noise levels in order to achieve Electromagnetic Compatibility (EMC).