Id like to pigtail counterpoises for 10, 30, 80 and 160 meters for my
200+/- wire which is configured as an endfed inverted U up about 65-70.
The horizontal run is about 90; the down-turned end is about 50 long, and
stops about 15 from earth. The horizontal run is across a steel-shingled
roof with a ridgeline up about 26 from earth. (If the 50' downturn is
counterproductive, I could eliminate it, but the antenna doubles on my dx
xtal radio set and seems to work better with this ant.)
For the ¼ wave counterpoises, Id like to feed them to my KAT100 with a
single wire 6 long. I would prefer to join the longer c.p.s to this
single wire outside the window. Is this practical? I assume I would
subtract the 6 from the calculated ¼ wavelength of each band and attach
wires of respective lengths to the 6 wire. Ill probably pigtail the 10
meter c.p. closer to the KAT100 inside the shack and keep it along the
floorboard.
C.P. height: Resources indicate a preferred height of 6-8 above ground.
Is this a minimum or could I lay the 80 and 160 meter c.p.s on top of my
roof? I will not be able to lay out the 160 meter c.p. in a straight line
in any event.
Tnx es 73, Gil NN4CW
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