This app converts a dataBase file like W9ZRX`s VHF.dtb to an ADIF file like vhf4k.adi used as a callsign search file in VHFLOG and KMRover loggers. Select the `From Database` radio button. However, files like VHF.dtb need to be converted first by loading and re-saving them in XP NotePad, which will put the file in a space delimited database format like VHF.dba N4ZZ EM66 NJ2F EL96 After a contest, to use this software to update an ADIF lookup file like vhf4k.adi from your VHF Cabrillo logs, select the `From Cabrillo` button. Change the column IDs as necessary.