This might be fun to do, but it probably doesn't really tell you your
soil's conductivity, which can vary a great deal from lot to lot and
even within a yard. And if it does, it's likely to be only the surface
conductivity. The skin depth for average soil is around 12 - 15 feet
over the HF range, so substantial current flows to that depth and
below.
Typical soils are stratified, with potentially very different
conductivities at different depths.

So, after going through this exercise, you have a number. But that
number is of no real use.

Roy Lewallen, W7EL



I think in my case it was accurate.... we came up with a big fat
zero..... but then again, we are on at least several feet of pretty pure
sand.



Ed K7AAT