On 7/9/2011 10:02 AM, Clint wrote: > > ANYWAY, I know that RF "travels" on the outside skin of a conductor. > My question is: Does it also travel on the inside skin?
Only if you "inject it there [e.g. a copper plug into the end of the pipe that connects with the inside only]. Similar to coax which actually exhibits 3 conductors ... the center, the inside of the shield, and the outside of the shield. We suppress currents on the outside with baluns at the antenna feedpoint. A small amount will of current will appear on the inside of the pipe due to inevitable stray couplings even if you "inject" the RF onto the outside only. > 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? No. A flat strip has it's own impedance characteristics. 73, Fred K6DGW - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
