Hi Patrick, That would not be SELCAL. The land mobile radio profession in the U.S. would call that a form of "ANI", Automatic Number Identification, i.e. that data squeal you hear on the radios on the bad police reality shows that is prepended to each transmission.
Thanks again for all your hard work and wonderful contributions! Scott --- In digitalradio@yahoogroups.com, "Patrick Lindecker" <f6...@...> wrote: > > Hello Scott, > > At the present time, there is a sort of SELCAL called Call ID (RS ID > extension). However there is no protocol around it. It's just some > information about the Ham (Call sign, Locator...) which pops up on the > waterfall. > > More about Call ID: > http://f6cte.free.fr/The_Call_ID_and_Prop_ID_easy_with_Multipsk.doc > > >given a 2 second RSID transmission length > 1.4 seconds precisely. > > 73 > Patrick > > ----- Original Message ----- > From: "aa777888athotmaildotcom" <aa777...@...> > To: <digitalradio@yahoogroups.com> > Sent: Wednesday, July 22, 2009 4:33 PM > Subject: [digitalradio] Re: More RSID - PLEASE! > > > > You know what's really exciting? We are a hop, skip and jump away from a > > powerful, lightweight ALE implementation that would probably outperform > > MIL-STD-188-141A by a large margin. > > > > Right now the code scans an entire 3KHz bandwidth for RSID (or more with > > SDR). When you add in the future, planned SELCAL feature the only things > > missing after that are scanning and an automated response. > > > > It also appears possible that the software would be capable of > > automatically choosing an empty spot on the waterfall to make the call. > > This would allow all calls to occur simultaneously and therefore I would > > suggest time synchronized scanning a la JT65 or WSPR in order to improve > > probability of intercept without long or repetitive RSID transmissions. > > Say 4 second dwell per band to allow a +/-1 second guard band on the > > timing (given a 2 second RSID transmission length). The occasional > > collision would be worth the simplicity and reliability. > > > > Thanks again, Simon! > > > > Scott > > k*b*l*0*0*q > > > > > > --- In digitalradio@yahoogroups.com, "Simon \(HB9DRV\)" <simon.brown@> > > wrote: > >> > >> I think it'll take up to a year - then we'll be rocking. > >> > >> Also when we use SDR more there will be a big improvement. > >> > >> Simon Brown, HB9DRV > >> www.ham-radio-deluxe.com > >> ----- Original Message ----- > >> From: Tony > >> > >> I think we're making progress with RSID Dave, it's just slow to catch > >> on. Have a look at the RSID video in the file section of this reflector. > >> > > > > > > > > > > ------------------------------------ > > > > Announce your digital presence via our Interactive Sked Pages at > > http://www.obriensweb.com/sked > > > > Recommended digital mode software: Winwarbler, FLDIGI, DM780, or Multipsk > > Logging Software: DXKeeper or Ham Radio Deluxe. > > > > > > > > Yahoo! Groups Links > > > > > > > > > > >
