DF4IAO Meaning of DF4IAO in English Located in JN48DUDXCC entity: DA-DL - Fed. Rep. of Germany Last update on: 03/2000 Search DF4IAO at QRZ.COMSearch DF4IAO at VHF-Group DL-West Amateur radio QTH Locator English vocabulary. Английский словарь радиолюбителя QTH Локатор. 2012