-Dave, How about something as distinctive as RTTY's RYRYRYRYRYRYRY? We all recognize RYs without decoding it with a terminal. Your tone idea is good, anything that is easy to recognize with the ear would be good. I wonder how QRLQRLQRLQRLQRLQRLQRLQRLQRL sounds in RTTY?
Andy K3UK -- In digitalradio@yahoogroups.com, "Dave Bernstein" <[EMAIL PROTECTED]> wrote: > > If "QRL?" in CW is too retro, we could specify a sequence of eight 1 > khz tones of 250 ms duration separated by 250 ms to convey the "is > this frequency in use?" message. It would be distinctive in a > waterfall display, and could easily be recognized by application > software. > > 73, > > Dave, AA6YQ > > --- In digitalradio@yahoogroups.com, "jgorman01" <jg6164@> wrote: > > > > The problem here is that if the FCC drops Morse Code, they won't be > > able require CW be used for this purpose. You'll also have folks > that > > are adamant against having to learn Morse Code for this purpose. > > > > Also, I usually don't listen to the frequency, the waterfall > suffices > > for that. Recognizing a QRL in CW may not work well in this > situation. > > > > Jim > > WA0LYK > > > > --- In digitalradio@yahoogroups.com, "Dave Bernstein" <aa6yq@> > wrote: > > > > > > > > In addition, I sincerely doubt that a RTTY station, for > instance, > > > will recognize the CW QRL request and reply in 30 seconds. > > > > > > >>>Most ops would quickly learn to recognize "QRL?" in CW. > Replying > > > requires nothing more than hitting a couple of keys, whether on > an > > > KSR-33 or a keyboard. > > > > > > It would be much better if the automatic station could respond > to a > > > standard QRL signal during receive periods (wasn't it you that > > > suggested that to me at some time in the past?). > > > > > > >>>Yes, I did; the two techniques are complementary. > > > > > > 73, > > > > > > Dave, AA6YQ > > > > > > Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
