#Serial Numbers

A serial number exchange means that each station sends a number that increases by one with every completed QSO. It is simple to learn but easy to log wrongly, since the number cannot be predicted and the logger cannot suggest it. Typical problems are typing errors, gaps after a restart, repeated numbers and misread cut numbers. This tag gathers articles on sending, copying and logging serial numbers in contests such as CQ WPX. Where a tool checks callsigns but not serial numbers, the operator remains responsible for getting the numbers right.