Phil, That depends on the exact length of your feedline and the lengthy of your radiator.
As I indicated, the impedance in the shack will depend on the feedline length, a well as your radiator length. Would you kindly share both lengths with us so we can duplicate your results. If you are like most hams, the feedline is cut to a length that reaches "from here to there", which is fine for an individual situation, but cannot be extended to a general case. In other words, your setup works for you, but it may not work with different feedline lengths. 73, Don W3FPR On 9/29/2012 10:07 PM, Phil Hystad wrote: > I have a Comtek 4:1 and a Comtek 1:1 BALUN (from DXEngineering) that I > have where I can easily hook up my 450-ohm ladder line to either one. > > I have tested both across all the bands that I use on that particular antenna > which is 80, 40, and 30. > > In every case, the Comtek 4:1 gives the better solution as measured by my > MFJ 459 antenna analyzer. I do agree that it is not always true that a given > 4:1 is better then a 1:1 because on a previous antenna (a delta loop), the 1:1 > just so happened to be a little bit better then the 4:1. > > In all cases though, I measured impedance right from the shack where about > 30 feet of coax ran up to the baluns which were mounted outside. On the > current antenna, I have close to (but not exactly) 100 feet of 450 ohm ladder > line to the antenna feed point. My current antenna is center-fed dipole of > about > 130 feet in total length. > > ______________________________________________________________ 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
