Is swamp water conductive?
Fresh water swamps have a lot of stuff suspended or dissolved in the water. The
conductivity might be much higher than pure water.
A quick google:
Great Salt Lake = 158,000 uS/cm
Salt water is about 50,000 microSiemen/cm (uS/cm)
Atlantic Ocean = 43000 uS/cm
Drinkable water -- less than 3000 uS/cm (and you'd prefer <1000 )
Irrigation water -- 3000 to 6000 for salt tolerant plants.
Lake Mead = 850 uS/cm
Lake Superior = 97 uS/cm
Soil conductivity in New England = 10 to 20 uS/cm (Map ARRL Antenna Handbook).
Deionized water = .05 uS/cm
"Fresh" water swamps = 250 to 37000 by one Australian study, but conditions
were strange there (the 37000 was almost dry, all were drying out).
My guess for swamps = 250 to 3000
>From what I can find online, your conductivity ought to be 10 to 100 times
>mine.
It ought to be more conductive than Lake Superior for sure, i.e., substantially
better than a clean lake.
If your swamp gets drier seasonally the conductivity should go up when it's
drier but still liquid.
These numbers make it look like a fresh water swamp will be better for radio
than almost all soils and most fresh water lakes but not as good as salt water.
I wonder if the swamp at the bottom of my hill helps on 2 meters.
--Walter, K1CMF
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