[RTTY] Dash vs. space

Jim Hargrave w5ifp at gvtc.com
Sun Feb 10 16:59:46 EST 2013


Please consider that many Logging programs are in use during a contest.

Not all software will auto-capture the number when dashes are used. It looks
at the entire stream as one number.
In these cases, the use of spaces are preferred and correct capture is
virtually assured.

The use of dashes result in the operator having to manually entering the
numbers, slowing down the exchange process.

    73s de Jim
       W5IFP


  > -----Original Message-----
  > From: RTTY [mailto:rtty-bounces at contesting.com]On Behalf Of Don AA5AU
  > Sent: Sunday, February 10, 2013 2:30 PM
  > To: RTTY Reflector
  > Subject: Re: [RTTY] Dash vs. space
  >
  >
  > Same here, tried both ways. Seems less requests for repeats
  > with spaces but not conclusive. Did the first half of the
  > contest with dashes and then switched to spaces.
  >
  > Spaces look better to me!
  >
  > 73, Don AA5AU
  >
  >
  >
  > >________________________________
  > > From: John Merrill <johnn1jm at gmail.com>
  > >To: RTTY Reflector <rtty at contesting.com>
  > >Sent: Sunday, February 10, 2013 12:42 PM
  > >Subject: Re: [RTTY] Dash vs. space
  > >
  > >I tried dashes for awhile during WPX and then tried with
  > spaces. Probably
  > >not too conclusive but I had much less request for repeats with spaces.
  > >
  > >73, John N1JM
  > >
  > >
  > >On Sun, Feb 10, 2013 at 9:45 AM, Bill Turner
  > <dezrat1242 at yahoo.com> wrote:
  > >
  > >> ORIGINAL MESSAGE:
  > >> On Sun, 10 Feb 2013 04:47:06 -0800 (PST), you wrote:
  > >>
  > >> >I find Chen's lessons on the sound science behind RTTY very
  > refreshing
  > >> and very often there is something new I learn from them. The
  > latest one is
  > >> his analysis of using a dash between to separate 599 and the
  > exchange(s):
  > >> >
  > >> >http://lists.contesting.com/pipermail/rtty/2013-February/038940.html
  > >>
  > >> REPLY:
  > >> One can analyze this to death, but the fact remains that
  > when the exchange
  > >> is sent twice with spaces in between, USOS (Un Shift On
  > Space) has two
  > >> chances to get the FIGS/LTRS shift right, vs only once when
  > dashes are
  > >> used.
  > >>
  > >> Chen's analysis only sends the exchange once, and that makes all the
  > >> difference. Most stations send it twice or even three times.
  > >>
  > >> Let me explain it one more time:
  > >>
  > >> If you send 599-001-001 and the one and only FIGS character
  > is garbled,
  > >> you print TOOAPPQAPPQ. There is no second chance for a correction.
  > >>
  > >> But if you send 599 001 001 now that EXACT SAME FIGS
  > character is garbled,
  > >> you print TOO 001 001.  Even if TWO FIGS characters are
  > garbled, you still
  > >> print TOO PPQ 001. The only way you can get TOO PPQ PPQ is
  > if ALL THREE
  > >> FIGS characters are garbled.
  > >>
  > >> Which would you rather see?
  > >>
  > >> USOS was invented for good reason. Please let it do its job.
  > >>
  > >> Bill, W6WRT
  > >> _______________________________________________
  > >> RTTY mailing list
  > >> RTTY at contesting.com
  > >> http://lists.contesting.com/mailman/listinfo/rtty
  > >>
  > >
  > >
  > >
  > >--
  > >sent on my MacbookPro
  > >_______________________________________________
  > >RTTY mailing list
  > >RTTY at contesting.com
  > >http://lists.contesting.com/mailman/listinfo/rtty
  > >
  > >
  > >
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