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Old April 21st 08, 03:26 PM posted to rec.radio.amateur.antenna
Highland Ham Highland Ham is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 250
Default Grounding Possibilities

Howard W3CQH wrote:
I live in a 1 story home with a accessible attic.

I have an Icom AH-4 tuner mounted in the attic, and need to run a real
ground to the 8' ground rod we just pounded in.

My question is - should the ground wire coming from the AH-4 be of a wire
gauge of #12, or should I consider running 1/4" copper tubing? The total
length of the run is approximately 30'

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That 30 ft run ,whether wire or tubing could possibly radiate RF ,hence
it might be better to have an artificial ground (a series resonant tuned
circuit + a length of insulated wire) located on the loft .
The unit is tuned for maximum current .

Such a unit can be easily homebrewed ,however it can also be purchased
from MFJ (their model MFJ-931) , be it that it is to be locally
operated which might be a problem when the Icom AH-4 tuner is remotely
operated away from the loft.

Frank GM0CSZ / KN6WH