- by:Al Williams
Morse code qualifies as a digital mode, although organic brains are somewhat better at copying it than electronic ones. Ham radio operators that did “phone” (ham-talk for voice) started out with AM modulation. Sometime after World War II, there was widespread adoption of single side band or SSB. SSB takes up less bandwidth and is more reliable than AM modulation. On the digital side, hams turned to different and more sophisticated digital transmission types with computers pushing bandwidth down and reliability up. However, a recent trend has been to encode voice over ham radio–sort of VoIP with radio instead of Ethernet–using an open source program called freedv…..
by April M. Havens LUCEDALE, Mississippi — George Regional Health System assistant safety director Harold “Butch” Murphy is hoping... Read more
With an eye toward helping new and inexperienced hams enjoy the full range of activities that Amateur Radio has to offer, Hamvention® and the ARRL 201... Read more
Cover all HF bands with one single wire and no tuner! to ensure great performance in a wide range of operating conditions. End-fed horizontal wire, an... Read more
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