Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation...

Telecommunication Union (ITU) oversees how much radio spectrum is set aside for amateur radio transmissions. Individual amateur stations are free to use any frequency...

An amateur radio operator is someone who uses equipment at an amateur radio station to engage in two-way personal communications with other amateur operators...

An amateur radio satellite is an artificial satellite built and used by amateur radio operators. It forms part of the Amateur-satellite service. These...

Amateur Radio Union (IARU) is an international confederation of national organisations that allows a forum for common matters of concern to amateur radio...

Amateur radio or ham radio is practised by more than 22,000 licensed users in India. The first amateur radio operator was licensed in 1921, and by the...

An amateur radio repeater is an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher...

An amateur radio contact, more commonly referred to as simply a "contact", is an exchange of information between two amateur radio stations. The exchange...

An amateur radio station is a radio station designed to provide radiocommunications in the amateur radio service for an amateur radio operator. Radio amateurs...

modes of radio communication used in the amateur radio hobby. Amateurs use a variety of voice, text, image, and data communications modes over radio. Generally...