Amateur (Ham) Radio happenings in Hawaii, mainly on the isalnd of Oahu.

Amateur radio (ham radio) is the licensed and private use of designated radio bands, for purposes of private recreation, non-commercial exchange of messages, experimentation, self-training, and emergency communication. Amateur radio, like other regulated radio services, operates under rules that limit the maximum power and the technical and operational characteristics of transmissions. Amateur radio stations are issued with a designated call sign to allow identification of stations. The power of amateur radio equipment is restricted, and operators must not cause interference to other authorized radio users. They may not broadcast to or communicate with the public with their equipment. They are only allowed to communicate with other licensed operators. National regulations governing amateur radio use are coordinated under international agreements since radio frequency transmissions can cross multiple national boundaries.
The term "amateur" is used to differentiate it from commercial and professional two-way radio services. Amateur radio operation is licensed by national governments.

An amateur radio license requires passing written tests, but there is no longer a Morse Code test. Hams have access to many frequency bands and up to 1,000 watts (or 1.500 watts in SSB). Hams can operate local line-of-sight to global communications. Every survival group should have a licensed amateur radio operator. Because of their license test studies, hams understand radio theory, propagation, and operating procedures.