Hi Jose, That can be done, of course, but there is also often a need in emcomm for everyone to be on the same RF frequency, so in order to do that with SSB, everyone needs to be on the same tone frequency, and with VHF FM especially, voice communications has to be on the same frequency (i.e. "channel"), so to switch to MT63, the baseband tone frequency must be the same. In MARS here, the practice is to intermingle phone with MT63, and sometimes stations are copying bulletins when nobody is at the transceiver controls, so the tone frequency needs to be within 100 Hz of an agreed standard, which is 500 Hz in this case.
73, Skip KH6TY Jose A. Amador wrote: > > > > Just one more comment, being on agreement with the previous > postings... on a "linear transponder" (as a SSB transceiver becomes > usually on HF between your antenna and your soundcard) just rock the > transceiver's dial to make the tones fall in the proper place in the > spectrum. > > FLdigi has a sweetspot setting that MIGHT help to set the baseband > start at 1500 Hz (I am not sure because I have not used it). > > On FM (F2D), it is something else, as you must make the baseband > tones coincide.Simon just hit the nail once again. > > 73, > > Jose, CO2JA > > --- > > Simon (HB9DRV) escribió: > >> ----- Original Message ----- >> From: "kh6ty" <kh...@comcast.net> >> >>> The standard for MT63 is to start at 500 Hz. Fldigi follows the accepted >>> standard. Anyone wishing to use fldigi and flarq together on MT63 will >>> have to follow the standard and only use MT63-1000 or MT63-2000 as other >>> versions have too much latency for flarq >>> >> >> Being more exact - Pawel, the designer of MT63 specifically set the lower >> frequency to 500Hz. fldigi and DM780 use Pawel's code, it is not a trivial >> task to work out how to allow a different starting frequency. >> >> As Skip says, the MT63 standard is to start at 500Hz. I think MARS have >> decided to use some other default but it's really their problem. >> >> Simon Brown, HB9DRV >> www.ham-radio-deluxe.com >> > > > > __________ 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 <http://www.eset.com> > > > ------------------------------------------------------------------------ > > > Participe en Universidad 2010, del 8 al 12 de febrero de 2010 > La Habana, Cuba > http://www.universidad2010.cu > www.universidad2010.cu <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 > > ------------------------------------------------------------------------------------------------------------ > > > > -- *Skip KH6TY* http://KH6TY.home.comcast.net
