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.
frequencies, and are the root cause of all EMI problems in switched-mode power supplies. This high frequency energy causes ringing in all the resonant tanks, small or large, that exist within the power supply. In general, this wringing does not cause problems; however, in some cases, this may stop the power supply from working