Radio communication:

An electrical connection to earth for some types of antennas for radio frequency signals as a reference potential can be used. Earth ( "Earth electrode") to participate directly in contact with a metal rod or the earth or buried metal piping for water connection as easy as stakes can be driven (although it later to replace water pipes with risk of plastic). Because high frequency signals through the typical flow of the earth, the ground capacitance is a crucial factor in the effectiveness of signal field can. Because a complex system of buried rods and wires can be used effectively.

An ideal ground zero voltage signal does or even how much electrical current flows out of the ground field. Frequency signals to the earth electrode resistance connection determines its quality, and quality in contact with the earth's surface area electrodes have improved growth, increasing the depth that it is powered, multiple land use associated rod , to increase soil moisture, improve soil conductive mineral content, and is increasing in land area covered by the field system.

VLF, if, mutual funds and short range SW antenna systems depends on a good foundation to broadcast certain types of work efficiently. For example, a vertical ground plane monopole antenna one often about equal to the height of the antenna radially for a distance away from antenna base are attached to a network of wires is required. Sometimes a plane overhead to support such land loss is less.