kortvågssignaler
Kortvågssignaler, also known as shortwave signals, refer to radio waves in the frequency range of 3 to 30 megahertz (MHz). This part of the radio spectrum is characterized by its ability to travel long distances, often around the globe. This long-distance propagation is primarily due to the interaction of these waves with the ionosphere, a region of charged particles in Earth's upper atmosphere.
When shortwave signals encounter the ionosphere, they can be reflected or refracted back towards the Earth's
Kortvågssignaler have historically been crucial for international broadcasting, allowing radio stations to reach audiences worldwide. They