Amateur radio, sometimes referred to as a ham radio, is a common tool for communication. It caters to a wide range of consumers with different demands and conveys messages across great distances.Some people take a ham radio with them for emergencies and SOS calls, such as sailors and hikers. Some people have a ham radio so they can experiment and study radio skills. But not everyone has the money to purchase a ham radio. As a result, homebrew ham radios gain popularity.