Amateur radio, also known as ham radio, is a popular hobby that allows individuals to communicate with others using radio frequencies. Enthusiasts, known as amateurs, use various equipment to send voice, text, and images over long distances without relying on the internet or phone networks. To participate, operators must obtain a license from their country's regulatory body, which often requires passing an exam. This ensures that users understand radio operation and safety. Amateur radio is not only a fun pastime but also plays a vital role in emergency communications during disasters when traditional systems may fail.