On Dec 8, 2011, at 6:47 PM, Jim Brown wrote: > Virtually all the loss in transmission lines at HF (and even VHF) is due > to copper (that is, I squared R). Open wire line (and window line) has > much lower loss than coax because it has much higher impedance, so the > current for the same transmit power is much less than for coax.
The impedance of the feedline does not change the impedance of the antenna. A half wave length dipole at the proper height is still a 50 ohm feed regardless of whether it's fed with 50ohm line or 600 ohm line. Ken WA8JXM ______________________________________________________________ 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
