What's the rationale behind this proposal? 73,
Dave, AA6YQ --- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA <[EMAIL PROTECTED]> wrote: > > How about 2 PSK tones at 22.75 baud spaced 50 Hz apart that sends > 101010100101010111110000 ? > > Walt/K5YFW > > -----Original Message----- > From: digitalradio@yahoogroups.com > [mailto:[EMAIL PROTECTED] Behalf Of Andrew O'Brien > Sent: Wednesday, February 22, 2006 12:36 PM > To: digitalradio@yahoogroups.com > Subject: [digitalradio] Re: NTS and traffic handling and digital > > > -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" <aa6yq@> > 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 > 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/