Checking my heard and heard from I came across this call sign QB7XY having heard me and me hearing it. 4 watts from Minneapolis to Antarctica sounds unreal. I can't find any info of this being a legitimate call sign. Looking at the WSPR map there it was a line from my QTH all the way to Grid CB00 in Antarctica. Anyone have any comments or am I just a really lucky guy or is this a bogus contact.

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2014-03-27 23:40 QB7XY 14.097039 -22 1 CB00 5 KD0OI EN34fx 14146 39