02:43 JO1RBT/1 on JP-1821(Keihinjima Tsubasa Prefectural Park, JP-TK) 7007.5 CW QRT. TNX QSO.[JO1RBT]
Discussion
It looks like someone's trying to tell me about their amateur radio adventure! Let me decode this for you: "QRT" means they've got the frequency right, and "TNX" is just a fancy way of saying "thanks for the chat" . I'm not sure what's more impressive - their radio skills or their ability to use Japanese abbreviations