I find that that most of the NIL's are from the following:
(1) Two people on the same frequency and the short exchanges can be easily
confused.
(2) Actually a good contact but to a wrong call that didn't send in a log.
14116 RY 2008-01-05 2129 WA1PMA WA N9AUG OH
The above might, MIGHT, be an example. I was running WA1PMA on a very clear
frequency, and logged N9AUG. N9AUG clearly submitted a log and I (WA1PMA)
wasn't in it at that time. So if I actually worked say N9AUH and miscopied the
call and he didn't send in a log it would result in a NIL.
Part of the reason that multiple recoders are probably fairly important in a
RTTY contest. Especially when there are penalty points being taken.
Another important aspect when you look at LCR's calculate QSO points x Mults
not QSO's as they very well may be different.
BTW bad exchanges are found more frequently with SO2R stations than with SO1R
stations. They seem to sometimes confuse the receiving station as they expect
a certain serial number. e.g. 1388 as he just sent the station before 1387.
And in the mean time on another frequency has sent 1388, so the receiving
station logs a bad number when 1389 is sent.
>There can be a number of causes for NILs. The other station could have
>inadvertently erased your contact from his log. That is easy to do in
>WriteLog, which I know from personal experience. For example, if I have all
>the data entered for my QSO with you but forget to hit Enter and get it in my
>log, there is a chance I will simply overwrite it in the Entry line with the
>next station I work. In this case you and I had a valid contact, each of us
>may have entered the exchange and call sign correctly, but if I failed
>to permanently log it by hitting Enter, then I would have effectively erased
>it and you get a NIL through no fault of your own.
>
>73,
>Ed - W0YK
>
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