4O3ZZ operated 31 August - 1 September 2005 from the YT6A contest location, Obosnik, Montenegro. For DXCC this operation counted for Serbia & Montenegro.

The photo shows Ranko, YT6A (standing) with Dave, K1ZZ/4O3ZZ and Linda, KA1ZD/4O6ZD after our overnight operating stint.

4O3ZZ was again active 16 - 17 April 2007 from the same location, but this time it counted as the new DXCC entity of Montenegro.

Both 4O3ZZ logs have been uploaded to Logbook of the World.