Reception report: ZL1MH was calling CQ on 10120 khz at an RST 589 at 1955 utc today 1 April 2017. I heard my own signal come back to him and complete a Qso ! Checking my logbook, we completed a Qso on March 3rd 2001 and I've found his Qsl card for this qso we had. How often does this happen to you ?