What ground arrangements should I make for my 20 metre long marconi antenna.
Hi. I want to work 160, 80 and 40 with a 20 metre length of wire (fed into
an atu) that is to be supported between a mast and a pole on the house
chimney stack.
Here is a plan of my garden:
8.6 metres
_________________________________
\ x A |
\ |
\ | 5.8 metres
\ |
\ |
\_C________________________B_|
6.4 metres
x is where the antenna will connect to the atu.
distance from x to A is 7.8m
distance from x to B is 9.4m
distance from x to C is 5.4m
the angle at x, from points A and C is 73 degrees, so any ground wires
centered on point x would fan out 73 degrees..
Okay, what ground arrangements should I make? Do I drive in 2 or 3 2 metre
ground rods at point x and as many ground wires 6 inches below the surface
fanning out from point x, or what? Would I also connect a conterpoise wire
or wires to point x running a foot or so above ground?
Thanks for any advice.
Rich.
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