Yes, as in coax for an example. when transmitting eg via coaxial cable which is properly installed the rf currents flow on the inside surface and not on the outside surface. I mention proper installation .. In which case steps are taken to keep the inside and outside surfaces separate (at rf). In your example, plain copper pipe wil have a total surface of the inside + outside. If you solder on caps then you will have just the outside.
Jim VE3CI Sent from my iPod On Jul 9, 2011, at 1:02 PM, "Clint" <clint.st...@sbcglobal.net> wrote: > This is a bit OT but it does concern my K3. Hopefully this will not open too > big of a can-o-worms. > > As an experiment to try and achieve a very low impedance ground system, I am > using 1 inch rigid copper tubing for my station and Vertical Antenna grounds > and ½" copper refer tubing to tie together my ground rods and the mains > ground. > > ANYWAY, I know that RF "travels" on the outside skin of a conductor. My > question is: Does it also travel on the inside skin? In other words, would > the impedance be the same on a round hollow tube as it would be if the tube > was slit and laid out flat? > > > > Thanks, > > > > Clint KI6SSN > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html