Hello, > One way would do it. To use an analogy, you ring the phone and the > operator decides if he wants to pick up. With RSID, Call OK I see the analogy.
> By the way, is there currently a mechanism for monitoring the 3KHz > passband for a certain Call ID and only alarming on that? Yes there are several options (monitoring, automatic spot...). The covered bandwidth can be 2.5, 3.3, 4.3 or 44 KHz on a SdR. I have modified a bit the Call ID source to integrate a small "message ID" (possibility to send small messages (9 characters max) readable on the waterfall). 73 Patrick ----- Original Message ----- From: "aa777888athotmaildotcom" <aa777...@hotmail.com> To: <digitalradio@yahoogroups.com> Sent: Monday, November 23, 2009 12:51 PM Subject: [digitalradio] Re: Getting serious about ALE for non-encomm digital hamming > > > --- In digitalradio@yahoogroups.com, "Patrick Lindecker" <f6...@...> > wrote: >> >> Hello, >> >> > Once an effective, simple and robust SELCAL standard is developed >> > (again >> > IMHO it should be a logical extension of the >existing RSID and Call ID >> > standards) it could eventually be parlayed into a more modern and >> > effective variant of ALE. By using >> RR for the nice SELCAL idea. I'm not sure it would be very easy if you >> need >> a symetrical acknowledgment. If it is only a one way transmission without >> any double acknowledgment it is much more easy. RS ID and CALL ID are >> public >> sources. So... > > One way would do it. To use an analogy, you ring the phone and the > operator decides if he wants to pick up. With RSID, Call ID and SELCAL > combined the called station would know he's being called, who's calling > and on what mode and freq. Just like RSID, allow the alert to be ignored > or allow the alert to cause the station to be put on the right mode and > freq. Just like RSID the operator answers manually. > > By the way, is there currently a mechanism for monitoring the 3KHz > passband for a certain Call ID and only alarming on that? > > > > > ------------------------------------ > > Suggested frequencies for calling CQ with experimental digital modes = > 3584,10147, 14074 USB on your dial plus 1000Hz on waterfall. > > Announce your digital presence via our Interactive Sked Pages at > http://www.obriensweb.com/sked > Yahoo! Groups Links > > > >
