id frequency mode datetime sent callsign sent rst sent exchange rec callsign rec rst rec exchange id cross record problem log
16296 3591 RY 15.12.2012 05:19 AA4DD 599 4 N2BJ 599 4 21313
21313 3591 RY 15.12.2012 05:19 N2BJ 599 4 AA4DD 599 45 16296 invalid / incorrect received exchange code