According to the Czech Radio Club Web site (http://www.crk.cz/ENG/DXCONTE.HTM) the correct exchange for the OK DX RTTY contest this weekend is "Non OK/OL/OM: RST + progressive QSO number starting with 001." However, other contest sites are stating that it is RST and CQ Zone. Did the exchange change this year? 73 . . . Steve, WB8IMY