Topband: Ground Conductivity

[Dave Cuthbert]

AA6VB, QTH San Jose, California looks like *8 mS/m*

FCC ground conductivity map
https://www.fcc.gov/media/radio/m3-ground-conductivity-map

A more detailed map
https://www.americanradiohistory.com/FCC_Ground_Conductivity_Maps.htm

1 skin depth t 1.8 MHz in 8 mS/m soil is ~4 meters

    Dave KH6AQ

On Mon, Mar 23, 2020 at 12:02 PM Chortek, Robert L. <
Robert.Chortek at berliner.com> wrote:

> A quick question for the collective wisdom on this esteemed reflector:
>
> How would one categorize the quality of ground consisting of grass. For
> example, if you live next to a large (many acres) open space made entirely
> of well watered grass, would that qualify as “average ground“, “above
> average ground” or something else?
>
> Haven’t been able to find the answer anywhere.
>
> Thanks for your input, as always!
>
> 73 es DX,
>
> Bob/AA6VB
> Robert L. Chortek
> _________________
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