Topband: Ground Conductivity

[GGLL]

	How do they measure that kind of conductivity in mS?, is it the same 
method as when you measure soils for safety (mains), or lightning 
discharge ground?.

Regards
Guillermo - LU5WE.

El 23/3/20 a las 20:21, Dave Cuthbert escribió:
> 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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