You can also tie an underwriters knot at the split point. Actually 67 feet twice makes a 135 foot dipole for 80 meters, not 40.
Sent from my iPhone ...nr4c. bill > On Oct 4, 2017, at 10:35 AM, rich hurd WC3T <r...@wc3t.us> wrote: > > Would not a bnc-to-banana plug adapter hooked to a doublet made from 100' > of zip cord be equally useful? Is there even a reason to have a balun > in-circuit? I've read the characteristic impedance of the zip cord (or > speaker wire, etc.) is about 75 ohms. If you "unzipped" 67 feet or so and > put on a tie wrap (to avoid further unzipping), you'd have a quite > serviceable 40 meter dipole with an SWR of 1.5:1 or so. > > --- > 72, > Rich Hurd / WC3T / DMR: 3142737 > PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer > for Scouting > Latitude: 40.761621 Longitude: -75.288988 (40°45.68' N 75°17.33' W) Grid: > *FN20is* > > >> On Wed, Oct 4, 2017 at 10:00 AM, Don Wilhelm <donw...@embarqmail.com> wrote: >> >> Stan, >> >> Either of those options will work - however --- >> I would suggest minimizing the coax. The balun will not transform to a 50 >> ohm load, so the coax can run at a high SWR which will give more loss than >> the window line. >> >> Whether that minimum is zero or 5 feet will not make a significant >> difference, so use whatever is convenient for your station. >> >> 73, >> Don W3FPR >> >>> On 10/4/2017 9:26 AM, stan levandowski wrote: >>> >>> When operating a KX3 with the internal ATU into a window line fed doublet >>> through a BL2 balun, what is the preferred connection method: >>> >>> ______________________________________________________________ >> 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 r...@wc3t.us >> > ______________________________________________________________ > 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 n...@widomaker.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
