|UNIQUE WSPR SPOTS of my 474.2kHz signal using 15m earth-electrodes|
I am beginning to wonder how the system will perform on 160m and 80m, and even 2200m (137kHz).
Never let it be said you have no antenna for 474.2kHz - I think I have PROVED that a most basic system works! As long as above -30dB S/N your signal should be copied, although you may have to be patient. The results above were mostly one evening only.
One of the advantages of the longer baseline earth-electrode "antenna" will be its new direction. It will be almost 90 degrees around from the current antenna so quite a different polar pattern.