How far can radio waves travel on earth?
It depends where they travel. In space they can travel very far away, the most distance object from which we received electromagnetic radiation is GN-z11 – Wikipedia, that’s 32 billion light years from us. On the Earth it depends on the propagation mode: Ground wave – up to ~300–500 km.
Do radio waves go on forever?
Yes they exist forever, but they quickly become weaker than the background noise and are thus both undetectable and the the information is lost.
How do radio waves travel so far?
Actually, radio waves travel very quickly through space. Radio waves are a kind of electromagnetic radiation, and thus they move at the speed of light. The speed of light is a little less than 300,000 km per second. The distances to be traveled are so great that even light or radio waves take a while getting there.
How far do radio stations reach?
Reception distanceVHF Radio waves usually do not travel far beyond the visual horizon, so reception distances for FM stations are typically limited to 30–40 miles (48–64 km).