Balun Designs has a similar list of wire lengths hidden away as a link from the page for their 9:1 unun.
http://www.balundesigns.com/content/Wire%20Lengths%20for%204%20and%209-1%20ununs.pdf <http://www.balundesigns.com/content/Wire%20Lengths%20for%204%20and%209-1%20ununs.pdf> They also make excellent baluns (and ununs) at good prices. Putting their “QRP” balun (handles 250W) on my home dipole reduced the received noise by 6 dB. http://www.balundesigns.com/model-9130-qrp-9-1-unun-1-5-54-mhz-300-watts/ <http://www.balundesigns.com/model-9130-qrp-9-1-unun-1-5-54-mhz-300-watts/> http://www.balundesigns.com/qrp-model-1110-1-1-isolation-choke-balun-1-54-mhz/ <http://www.balundesigns.com/qrp-model-1110-1-1-isolation-choke-balun-1-54-mhz/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jan 29, 2017, at 4:16 AM, a45wg <a4...@sy-edm.com> wrote: > > You can download some code I wrote for this at > https://github.com/timseed/rnd_Wire.git > <https://github.com/timseed/rnd_Wire.git> > > For those people who just would like “some data” this is the output of the > program listed above. I have not tried this data in EzNEC etc. The Spectrum I > was checking against from 160m to 10m including full 80m/40m as well as 30m > and 60m bands. > > > > Possible good length at 6.0M 19.69Ft > Possible good length at 6.99M 22.94Ft > Possible good length at 8.26M 27.09Ft > Possible good length at 10.1M 33.14Ft > Possible good length at 12.01M 39.39Ft > Possible good length at 13.99M 45.89Ft > Possible good length at 18.01M 59.08Ft > Possible good length at 20.2M 66.28Ft > Possible good length at 24.01M 78.77Ft > Possible good length at 24.77M 81.27Ft > Possible good length at 27.75M 91.06Ft > Possible good length at 29.56M 96.98Ft > Possible good length at 33.03M 108.36Ft > Possible good length at 34.97M 114.72Ft > Possible good length at 40.41M 132.56Ft > Possible good length at 44.34M 145.47Ft > Possible good length at 45.46M 149.13Ft > Possible good length at 48.95M 160.61Ft > > > Hope this helps, > Regards > > Tim A45WG > >> On Jan 29, 2017, at 4:08 PM, James Rodenkirch <rodenkirch_...@msn.com> wrote: >> >> Emory - before you cut any wire, go to the below url and peruse all of the >> info - unless you desire to operate have a 1/2 wavelength antenna (not a bad >> thing) and have a 1/2 wavelength tuner for the band of interest, mgo to the >> below url for recommended wire lengths that avoid 1/2 wave antenna lengths >> for the your bands of interest. >> >> http://www.hamuniverse.com/randomwireantennalengths.html >> >> 71.5/72 de Jimm Rodenkirch K9JWV >> ______________________________________________________________ >> 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 a4...@sy-edm.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 wun...@wunderwood.org ______________________________________________________________ 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
