We need something recognizable by ear AND recognizable on a
waterfall display. I suspect that RYRYRYRYRY fails the latter test,
unless we're going to say that any RTTY signal will be interpreted
as "QRL?"
73,
Dave, AA6YQ
--- In [email protected], "Andrew O'Brien"
<[EMAIL PROTECTED]> wrote:
>
> -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 [email protected], "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 [email protected], "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 [email protected], "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
> > > >
> > >
> >
>
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