Over 1500km on 472kHz RX last night

There were several 472kHz WSPR spots of EA5DOM (1525km) here last night, with 17 unique MF stations logged on 472kHz RX. Some of the spots of EA5DOM would not have been  possible without the preamp. FR5ZX in Reunion copied several Europeans, so conditions on 472kHz were good.  As before, I am still using the earth-electrode "antenna" in the ground.