- 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…..
Great Article – Elad FDM-S2 from http://swling.com/ Check: http://swling.com/blog/2014/12/a-review-of-the-elad-fdm-s2-software-defined-rece... Read more
Worked All Europe DX Contest These are the final results of the 2014 WAEDC CW. For this contest we used a database containing 373523 QSOs and 341562 Q... Read more
YAESU SMB-201 With so many diverse ways to enjoy Amateur Radio such as WIRES-X and packet operation, transceivers are now having to deal with increase... Read more
>> Samuel Morse was inspired to explore a means of rapid long distance communication after suffering a personal tragedy in 1825. While at... Read more