>how do you test the loss of 1000 feet of wire ??? John k9dx
I don't know! The losses are certainly calculable as wires, but measurement
would be extremely difficult. When I was involved with this the stranded
conductors were centre cores of coaxial cables. It was pretty easy to
measure losses in that case. Of course it helped having a cable manufacturer
who was prepared to make lots of lengths of slighly varying cable in
anticipation of lots of future business. I no longer have that luxury, and I
think (know) that I would find differential equations a little more
difficult than I did back then!!!
Just as a thought, I guess one way would be to make an open wire
transmission line and measure the loss on that. But I repeat, on 160m any
wire that will stay in the air will be satisfactory. The same may not be
true for tuned circuits.
73 Roger
VE3ZI
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