It is also a hobby and a service. Special sets of radio frequencies are set aside for use exclusively by amateur radio operators. In the United States, hams are licensed by the Federal Communications Commission. An important role of ham radio is emergency communications.
Hams are well known for their role in providing communications during emergency situations.
Just about anyone can be a ham. There are no age limits. Many people with disabilities find a door to the world with amateur radio. Some famous people are hams, but most are people from all walks of life who enjoy making friends around the world. Anyone with an interest in radio, computers, satellites, electronics or communications will find many opportunities in ham radio.