Elecraft documentation suggests 24-28 feet of wire in the air and 16 feet on the ground for 40 m and up. Specifically, the ground wire is recommended to be at least 1/8 wavelength on the lowest band and preferably 1/4 wave. The recommendations in the KX2 manual say 1/4 wave.
For working down to 80 m, 53 feet seems to be a good choice for avoiding resonance on most bands. That is in the documentation for the KX1 ATU and the KX2. Page 9: http://www.elecraft.com/manual/E740054%20KXAT1%20man%20rev%20B.pdf Pages 10-11: http://www.elecraft.com/manual/E740282%20KX2%20owner%27s%20man.pdf wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 19, 2018, at 5:16 PM, Frank Krozel <[email protected]> wrote: > > Skimmed through the manual but did not find the reference to length of random > wire (in a tree for example) and the trailing wire. > I found 20’ and 13’ respectively in the manual but thought there was some > “other” reference for 30’ and something for the trailing wire. Anyone? > de KG9H > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
