On 3/21/2014 9:32 AM, Walter Underwood wrote: > Automatic error correction is the real difference that makes modern > digital modes more effective than manual digital modes (Morse) or > send-and-pray digital modes (RTTY).
7-level error-correcting ARQ was in heavy commercial use in the 1950s. It did require duplex operation, though. As Wise King Solomon said "there is nothing new under the sun". 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
