[WriteLog] Field Day

[Joe Young]

In the data entry window for Field Day using WriteLog what is the "C" column used for?
Also, I notice that if I am setup as a "1D" class I can enter data from another "D" station and it is accepted. The rules say that a "D" station cannot work another "D" station.
I am probably missing something here. This is my first try at Field Day. Thanks for reading.73 de Joe W6RLL.