6
I'd say these are simply corrupt. Take for example:
210113_163545 144.174 Rx FT8 -17 1.3 1247 J06NQY A68ITS/R R QM30
A68ITS doesn't seem to be a real call, but if it was, it would be a UAE call. The grid QM30 is in the Pacific ocean, about 800 km off the coast of Japan. This is a pretty unlikely combination.
The FT8 protocol includes error correction ...
5
210115_114630 144.174 Rx FT8 -17 -1.6 685 SIDE LOBE
This is probably the one real one of the bunch, actually! The odds of random noise decoding as a freetext message with sensible English in it are vanishingly small. This was probably from someone who worked someone on 2m FT8, and then after exchanging their grid squares, sent a followup message to ...
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