Ham radio, also known as amateur radio, is a hobby and service that allows licensed individuals to communicate using designated radio frequencies. Ham radio operators, or "hams," use various modes and equipment to engage in voice, text, and data communication. They participate in activities like making global contacts, contests, and emergency communication support. Hams play a crucial role in providing communication during disasters. This global hobby has evolved with technology and offers educational opportunities for newcomers. It fosters a diverse community united by a shared interest in radio communication and technology.