Radio navigation is a method used to determine the position and course of an object, such as an aircraft or ship, using radio signals. It relies on transmitting and receiving radio waves to calculate distances and directions. Common systems include VOR (VHF Omnidirectional Range) for aircraft and LORAN (Long Range Navigation) for ships. These systems work by sending signals from ground-based stations to the moving object. By measuring the time it takes for the signals to travel, the system can pinpoint the object's location. Radio navigation is essential for safe and efficient travel in various modes of transportation.