I heard one station in zone 27 weakly running a pile up so I joined in the fray to try and work a new band slot. After a while the QRM was bad and I couldn’t hear the DX. I decided to stop transmitting and wait for a “TU” so that I can get stuck in again without causing QRM.
Me: [I’ll wait for a TU before calling again]
DX: comes up from the noise “TU – qrz?”
Me: [too slow to drop my call. I’ll wait for the next QSO to be completed]
DX: “M0BPQ – 599 27”
Me: [How the hell did that happen? Quick! Tx a report] “M0BPQ 599 14”
DX: “M0BPQ TU X1YZ TEST”
So, a valid QSO from my side, but how did he know I was there? He must have been using a code reader of some sort and picked me off the screen?