Invalid mappings

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

Invalid mappings
Club Log automatically maps some QSOs as invalid when they are imported into the database.  Club Log is based around the DX Century Club awards fr...
Thu, 3 Nov, 2016 at 4:32 AM
DE - German SWL prefix
DE-"calls" are not issued by BNetzA, the German licensing authority, but by the DARC e.V. , the German Amaterur Radio Club. They are simple SWL cal...
Thu, 30 Aug, 2018 at 8:58 AM
D0, D1 - Donetsk People's Republic
Summary from Wikipedia The Donetsk People's Republic (DPR or DNR) is an unrecognised state (recognised only by the Republic of South Ossetia). DPR...
Mon, 29 May, 2017 at 5:54 AM
EZ - Turkmenistan since August,2006
Author: Alan, 5B4AHJ Amateur radio has been suspended in Turkmenistan since August, 2006. Nevertheless, EZ7V (a club station) has been QRV since ...
Wed, 10 Sep, 2014 at 2:39 AM
GKB callsigns in April, 2000
Author: Alan, 5B4AHJ Portishead Radio, GKA was an internationally famous long range maritime radio station that was QRV from 1928 until it closed in...
Wed, 26 Nov, 2014 at 8:25 AM
T10 - Transnistria
Author: Alan 5B4AHJ Summary from Wikipedia Transnistria (aka Pridnestrovian Moldavian Republic - PMR) declared independence in 1990. ...
Sat, 22 Feb, 2014 at 10:20 PM
UF6V - The Republic of Abkhazia
Author: Alan, 5B4AHJ UF was the prefix for Georgia in the USSR era, up to 1994-07-31. During that period UF6V was the prefix for oblast 013, Abkh...
Sat, 13 Sep, 2014 at 11:13 AM
X5 - Bosnia-Herzegovina
The following is reproduced from RSGB News Sheet dated 1993-11-24. Note: this is not necessarily the view of ARRL: "Bob Cox, K3EST, Contest Di...
Sun, 2 Mar, 2014 at 7:48 AM
Z6 - Kosovo
Author: Alan, 5B4AHJ. Kosovo declared its independence form Serbia on 2008-02-17. The ARRL Letter of 2008-02-22 gives a lot of detail on the subje...
Wed, 7 Feb, 2018 at 3:42 PM
0S, 1P, T0 & T8 - The Principality of Seborga
Author: Alan, 5B4AHJ Wikipedia says "The Principality of Seborga is a micronation located in the northwestern Italian Province of Imperia in...
Tue, 13 Dec, 2016 at 9:11 AM