Amateur Radio
ARRL
Amateur Radio is a both a high-tech hobby, and a public service.
Among other things, government-licenced radio operators ("hams") communicate
with each other worldwide via direct ionospheric links, terrestrial repeater
and packet networks, and, of most interest to users of this program, home-built
satellites.
Amateur Radio operators played key roles in developing many modern
technologies, including low-cost communications satellites. Other services
provided by hams include technical training, emergency communications in
disaster situations, and international goodwill.
The American Radio Relay League (ARRL) is an organization of hams
providing educational materials, publishing technical and non-technical books
and magazines, and organizing public service communications networks. You may
contact them to learn more about Amateur Radio:
ARRL
225 Main Street
Newington, CT 06111
(860)-594-0200
www.arrl.org