A clear-channel terminal is an AM radio terminal in North America that has the greatest security from interference from other terminals, particularly concerning night-time skywave breeding. The system exists to make certain the feasibility of cross-country or cross-continent radio solution, and is implemented via a collection of treaties as well as legal regulations. Currently referred to as Course A stations given that 1982, they are sometimes still described by their former categories of Class I-A (the highest possible category), Class I-B (the next highest possible course), or Class I-N (for terminals in Alaska too away to trigger disturbance to the primary clear-channel stations in the reduced 48 states). The term clear-channel is made use of frequently in the context of North America and also the Caribbean, where the idea came from. Considering that 1941, these terminals have actually been required to keep an efficient radiated power a minimum of 10,000 watts to retain their statu...