Most people are unware of the Radio Frequency (RF) radiation they are exposed to. Radiation is usually associated with radium, weapons, medical treatments, nuclear power plants and smoke detectors. Before we discuss covert cell towers and other numerous radiating antennas being installed with impunity, we should review the RF spectrum. This will be helpful in understanding how the radio spectrum affects us. We will not discuss HAARP, which is in itself a unique area of the radio spectrum in the shortwave band.