Thanks for catching the math error. Shows the dangers of multitasking. :)
--- 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 1:33 PM, Nr4c <n...@widomaker.com> wrote: > 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
