id frequency mode datetime sent callsign sent rst sent exchange rec callsign rec rst rec exchange id cross record problem log
16490 7062 RY 15.12.2012 23:26 AA4DD 599 4 N2BJ 599 4 21738
21738 7062 RY 15.12.2012 23:26 N2BJ 599 4 AA4DD 599 45 16490 invalid / incorrect received exchange code