The difference here is that a "helper signal" has been added, same as with SSTV, but which is only sent at the start of the transmission.
That is essentially different from the raw, bare signal with no ID. A new situation, to be fair. 73, Jose, CO2JA Simon (HB9DRV) escribió: > > > FWIW SSTV has been using VIS (slightly similar) for ~ 10 years or so, > maybe more. > > Simon Brown, HB9DRV > www.ham-radio-deluxe.com <http://www.ham-radio-deluxe.com> > > ----- Original Message ----- > *From:* Charles Brabham <mailto:n5...@uspacket.org> > ** > This is interesting in light of all the claims by WinLink and ALE > aficianados that that comprehensive signal-detection is 'impossible'. > __________ Información de ESET NOD32 Antivirus, versión de la base de firmas de virus 3832 (20090206) __________ ESET NOD32 Antivirus ha comprobado este mensaje. http://www.eset.com Participe en Universidad 2010, del 8 al 12 de febrero de 2010 La Habana, Cuba http://www.universidad2010.cu --------------------------------------------------------------------- SEGUNDO SEMINARIO INTERNACIONAL LEGADO Y DIVERSIDAD. ARQUITECTURA Y URBANISMO. El rescate de los valores urbanos y arquitectónicos en tiempos de globalización Colegio de San Gerónimo, La Habana Vieja, noviembre 24-27, 2009 ---------------------------------------------------------------------
