This is your project and you can use any material you want. But you have
no reason to *not* use copper because of the degradation of the electrical
characteristics when it gets tarnished. The RF resistance of the
tarnished looking copper wont be degraded.
I havent seen the post where you indicated the frequency this j-pole will
operate.

If your pervious post about making money by building j-pole antennas for
HAM use implies that you think there is a profit to be had by building
j-poles, I'd advise you to get the orders first.

Jerry


wrote in message
oups.com...
Copper is kind of ugly and tarnishes which I would think would increase
the resistance over time.