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This license requires the same tests as General plus a 50-question multiple choice theory exam. Those with Amateur Extra licenses are granted all privileges on all US amateur bands. Each licensing class has its own set of possible exam questions called a question pool. [3] The pools contain a few hundred questions each, divided into several ...
General radiotelephone operator license. The general radiotelephone operator license (GROL) is a license granted by the U.S. Federal Communications Commission (FCC) that is required to operate certain radio equipment. It is required for any person who adjusts, maintains, or internally repairs FCC licensed radiotelephone transmitters in the ...
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, self-training, private recreation, radiosport, contesting, and emergency communications. [1]
Subpart A contains fifteen sections, numbered 97.1–29. Subpart A defines a number of terms relevant to the provisions of Part 97, and establishes the amateur service as a "voluntary, noncommercial communications service" devoted to advancement of the amateur art, the skills associated with it, and the international goodwill that it brings, especially wi
FN31pr. The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of Hartford, Connecticut. The ARRL represents the interests of amateur radio operators before ...
WSPR (pronounced "whisper") is an acronym for Weak Signal Propagation Reporter. It is a protocol, implemented in a computer program, used for weak- signal radio communication between amateur radio operators. The protocol was designed, and a program written initially, by Joe Taylor, K1JT. The software code is now open source and is developed by ...