The reported receptions by JE5FLM of W7WKR and W7WKR of JE5FLM seem peculiar.
2011-04-10 17:54 W7WKR 14.097129 -18 -1 CN98pi 5.000 JE5FLM PM74ah 8220 304
2011-04-10 17:46 JE5FLM 14.097072 -16 1 PM74ah 0.002 W7WKR CN98pi 8220 42
For SNR's so close in value (-16 and -18 dB) and TX power levels different by 64dB seems very suspicious. Assuming fairly similar path losses in the reported 8-minute time-window between our two stations, I'd expect the reported SNR for W7WKR at JE5FLM to be off-the-scale "+XdB".
Dick/w7wkr CN98pi