id frequency mode datetime sent callsign sent rst sent exchange rec callsign rec rst rec exchange id cross record problem log
72664 7049 RY 15.12.2012 01:40 VE2NMB 599 5 N2BJ 599 4 21223
21223 7050 RY 15.12.2012 01:40 N2BJ 599 4 VE2NMB 599 54 72664 invalid / incorrect received exchange code