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.
Wireless noise or poor connection is often caused by one or more of the causes listed below. 1  Receiver blocked - If the antenna is not setup properly or wireless receiver is blocked it can cause noise. 2  Out of range - As you get further away from the receiver your signal decreases and can cause noise or lost connection.