Measure (accurately) the length of your foot, preferably both of them if they're different, then walk putting one foot directly in front of, and touching the one behind it with the wire laying along the ground under your feet. Multiply the number of steps times the length of your foot (or feet if necessary).
This is very similar to how to count the number of cows in a field. You simply count the legs and divide by four. 73, Charlie k3ICH -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lynn W. Taylor, WB6UUT Sent: Tuesday, February 09, 2016 2:38 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Slightly OT: non-resonant wires I don't believe there are magic lengths. There are however lengths that are decidely non-magical, and if you want something that works on 40, 30, 20, 17, 15, 12 and 10, there are many lengths that are non-magical. That's why I did not ask "what is a good length?" There is a pretty good reference here: http://udel.edu/~mm/ham/randomWire/ Short of buying a 100 foot tape (or a longer one), what methods do people use to reasonably accurately measure 53 feet (or 72 feet, or 136 feet)? Thanks -- Lynn On 2/9/2016 11:06 AM, Barry N1EU wrote: > I think the only important measurement is that it avoids being near a > half wavelength on any bands. Are there really "magic" lengths to be > used with > 9:1 xfmr into a tuner? I'm skeptical. > > 73, Barry N1EU > > On Tue, Feb 9, 2016 at 1:50 PM, Lynn W. Taylor, WB6UUT < > k...@coldrockshotbrooms.com> wrote: > >> Only a bit off-topic, since I have a KX3 w/tuner and a 9:1 balun to >> go with it. >> >> I know how to trim a resonant antenna to the correct final length. I >> also understand why truly "random" wires don't necessarily work. >> >> The recent post about shipboard operations near Antarctica said >> they're using a 53' wire. >> >> How do you guys measure an antenna like this? I assume it can be a >> few inches off, but.... >> >> 73 -- Lynn >> __________________________________________________ ____________ 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 Message delivered to pin...@erols.com ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
