Radio communication by electromagnetic waves, in transmission of voice, digital data, images, music, news, and other types of programs from amateur, broadcast, military, emergency stations to multitudes of individual listeners equipped with radio receivers. Its birth early in the 20th century, broadcast radio astonished and delighted the public by providing news and entertainment with an immediacy never before thought possible. From about 1920 to 1945, radio developed into the first electronic mass medium, monopolizing “the airwaves” and defining, along with newspapers, magazines, and motion pictures, an entire generation of mass culture. About 1945 the appearance of television began to transform radio’s content and role. Broadcast radio remained the most widely available electronic mass medium in the world, though its importance in modern life did not match that of television, and in the early 21st century it faced yet more competitive pressure from digital satellite and Internet based audio services.

Amateur Radio Engineers, Electronic and electromagnetic applied technology has advanced the radio technology beyond all imaginations. Radio technology is continuing to provide new ideas and advanced system for our planet and our Galaxy explorations.

Some tower company might not own the structure, but has lease rights and the ability to acquire the towers after a set period of time. Current list does not include DAS and small cells towers. Numbers represent total tower managed by company