Jim Go to this url, put in a Russian call you will find the RDA number ( not all ) http://www2.dxsoft.com/rda/rdasearch.htm 73's Mat -- --------------------------------- Radio Amateur ON5KL http://www.on5kl.tk --------------------------------- RDA identifiers in the old days, we used to collect ussr oblast numbers. are the RDA numbers that show up equivalent? or something else? Jim N1NK