Ranko is a telecommunication engineer, very experienced and designer of many new HAM radio dedicated products. He is one of the most active contesters in ex YU. Founder of SKY Contest Club and organizer of many contest Dxpeditions in past years. He was active in many WW contests from:

V2, FM5, 5B4, VP5.. etc

He built Premium Contest Resort, nicely equipped on the peninsula in Boka Kotorska Bay – Montenegro. You can see more details on www.4o3a.com

Member of VHSC#390, A1-OP, YUCWK#12

Team leader on WRTC 2006 in Brasil - 11th place as PT5L.

He also use or used:

YT65WRTC, YT6100A, YT635A, YT3A, YZ3A, 4O6A, 4O3T, YT310SKY, YZ610SKY, 4O310SKY