The dirt conducts electricity enough to give the antenna electricity some place to flow to. The ground wire helps the antenna get more power from the radio wave. A ground wire goes from the radio to something metal that goes into the dirt. The metal thing that touches dirt is called ground . Ground Ground is a metal thing that connects to something big, like the world.
Dirt is a good ground.
It gives the antenna electricity a place to flow into and out of. A good ground is a metal pipe several feet down in the dirt outside. Cold water pipes are good. They go in the ground on one end. Your body acts like a ground a little bit.