* Free software community
* Milos OK1MZM for creating tucnakdw database and above all for testing alfa versions.
Peoples from radioclub OK1KRQ and OK1ORU for trusting when they've been testing tucnak in a big VHF contests (I. a III.subr 2003, PDM 2003 and others).
* Guy, DL8EBW and VHF-DX-Group DL-West for nice VHF database
* Mike OM4AA for bug reporting