All day and overnight I have been on 472kHz WSPR using 5mW ERP from my earth-electrode "antenna". Although I have been copied by no new users in recent weeks, I have been spotted by G4JVF (151km) and G8HUH (250km) amongst others today. My best DX on TX with the earth-electrodes is 722km.
On RX I am consistently copying PA stations at over 400km. Although people tell me there is less WSPR activity on the band lately, I never fail to spot, or be spotted, on this MF band even with my compromise antenna and very low ERP.