Electronic database of issued CTU marks

Not just existing amateur radio license holders, but especially applicants for their own brand in OK will certainly welcome the opportunity to verify, whether the brand or prefix chosen by them is no longer issued, or whether such a combination is possible to obtain. ČTÚ has set up such a database on its website, and although there is not yet a complete list of brands, especially to the past of the database so far “can't see”, for example, it is possible to quickly check, until when the issued permit is valid, etc. You can't find the mentioned database on http://www.ctu.cz/main.php?pages=227&action=amateri. ANSI-SQL extended search usage system in examples: To find all brands starting with OK7 …. zadej OK7%, All brands starting with OK1K … enter OK1K%, To list all brands with a two-letter suffix… enter OK___ (3x underscore), All OK or OL with suffix “DX” … zadej O__DX (2x underscore)… 73 Petr, OK1RP