Topband: Water Conductivity

[Tom Rauch]

KN4LF:
> Conductivity of flood water is usually much higher then ground water,
> as it has come into contact with numerous surface materials and
> pollutants. Also ground water is also much more conductive then most
> realize as it's solubility allows for absorption of available minerals
> (salts). Of course you can't beat good old salt water.  (FYI...Fresh
> water conductivity is 1 mS/m and salt water is 5000 mS/m...de W4ZV)

When we did broadcast proofs in the Lake Erie/ Lake Huron areas, 
both lakes had a conductivity of about 6 or 8. Surrounding land 
ranged from 10 to 30mS/m. The 30mS/m stuff was very wet black 
sandy loam with all kinds of junk in it. The 10mS/m was dry-
surface clay in farmfields.

I can't imagine a flooded field anywhere being more than the peak 
value of wet black sandy loam, which for our purposes isn't going to 
be much different than the dry clay.

After all, we are not working groundwave for long distances.
  
73, Tom W8JI
W8JI@contesting.com 


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