[CQ-Contest] WPX SN...has to be a better way!

[Robert Chudek - K0RC]

I rather have the entire number resent over and over and over, until I am 
confident I have it right.

Did you realize that fully-sent numbers have a built-in checksum? (as 
opposed to cut numbers)

If I know a string of numbers is coming, I am delighted. For example, I know 
the number three is 3 dots and two dashes. So if I clearly hear the 3 dots 
and a dash, I'm 98% confident I'm going to hear two dashes. I listen for 
them. Likewise, if I hear two dashes and a dot, I'm 98% confident this is 
going to be the number 7 and listen for the 2 dots to "verify" the number.

Where this fails is if QRM or QRN takes out the transition between the dots 
and dashes in the middle of the number. That automatically generates a 
repeat request if the SN is only sent once. As soon as you start throwing in 
letters or cut numbers, then the "checksum" feature goes out the window.

No, I will take the time to repeat or ask for a repeat. It's not a problem 
and part of the game.

73 de Bob - KØRC in MN


----- Original Message ----- 
From: <kr2q at optimum.net>
To: <cq-contest at contesting.com>
Sent: Monday, May 26, 2008 4:14 PM
Subject: [CQ-Contest] WPX SN...has to be a better way!


> If condx are tough, or if you're just weak (my signal comes to mind), 
> there has to be better
> way of "correcting" the sent serial number.
>
> Currently, it seems we all are limited to sending the complete SN over and 
> over, even if only
> one (1) digit is wrong.  This can lead to too much stuff to send as well 
> as having previously
> correct digits converted to incorrect digits.
>
> I'm thinking about a "cut number - like" solution.  So if I'm sending SN 
> 123 but the other guy
> copied 112 and asks a CFM, I should be able to send something like RR3 or 
> KK3 or something
> so that he knows that he has the other stuff correct but that the last 
> digit (in this case) is
> wrong.  Sending 1324 multiple times is a pain.  Sending RR2R would be much 
> better (I think?).
>
> Comments?  And please don't tell me to just run more than 5 watts.  :-)
>
> de Doug KR2Q
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