Help your local archaeological society to locate and reveal the hidden mysteries of our ancestors.

The January and February 1997 issues of EPE saw the publication of Robert Beck’s Earth Resistivity Meter, an electronic tool to assist amateur archaeological societies “see beneath the soil” in their search for ruins and other hidden features.

The design presented here is based upon the same concept as used in Robert’s circuit, but it has been considerably simplified in terms of the components count and their ready-availability. Significantly, it has also been put under the command of a PIC microcontroller and provided with data logging facilities