Invalid mappings

Why Club Log maps some QSOs as "INVALID", and what "INVALID" means in a Club Log context

1C, 1X - Chechnya
Author: Alan, 5B4AHJ Summary from Wikipedia: Following the dissolution of the Soviet Union in 1991, the Chechen-Ingush ASSR, part of the R...
Fri, 16 May, 2014 at 10:28 PM
1Z - Karen State
Author: Alan, 5B4AHJ There have been a number of operations from Karen State (aka Kayin State),  a state of the Republic of Myanmar. There have b...
Thu, 2 Oct, 2014 at 12:32 PM
Related articles
Mapping policy on current and recent operations JB, JC prefixes, Japan Palestine & Gaza Maritime Mobile prefixes
Tue, 8 Dec, 2015 at 6:48 AM