Amateur radio operators, often called ham radio operators, are individuals who use radio equipment to communicate with others for personal enjoyment, experimentation, and public service. They are licensed by government authorities and must pass exams to demonstrate their knowledge of radio technology and regulations. These operators often participate in various activities, including emergency communications during disasters, contests, and community events. They can connect with people worldwide, using different frequencies and modes of communication, such as voice, text, and digital signals. This hobby fosters a sense of community and encourages technical skills and knowledge sharing.