- 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…..
Long-pending Amateur Radio antenna litigation that ARRL helped to fund has finally borne fruit. The Supreme Court of the State of New York, Appellate... Read more
BOLPA-10 A Super Wide Band, High Performance Log Periodic Dipole Array (LPDA) – 14MHz to 30MHz Optimised for all Ham Bands Just 7.7m long
Hockley Essex, United Kingdom – InnovAntennas Limited, The premier supplier of sophisticated and Innovative directional antenna systems announces toda... Read more
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