Topband: Ground Conductivity

[Jim Brown]

On 3/23/2020 6:23 PM, Richard (Rick) Karlquist wrote:
> Where I live, the soil is 100% clay and the RF conductivity is
> high.  Ten miles to the south, the soil is regular dirt.
> Vastly better for growing anything, even weeds.  But the RF
> conductivity is considerable lower.
> 
> A casual observer sightseeing would have no idea of this
> change in soil.

Here's a link to the ground conductivity contour map from FCC Regs for 
the AM broadcast band. http://k9yc.com/FCC-GroundMap.zip

73, Jim K9YC