For a 20M J-Pole look at N1LO's web page - http://www.qsl.net/n1lo/antenna.htm
I have used his 10M collinear super J-Pole for years in my HOA-neighborhood back yard hanging from tall tree limbs. For the last 2 years it has been supported by a 55 ft fiberglass mast. It is my year-round go-to antenna for checking conditions on 10M. 73, Henry Pollock - K4TMC On Fri, Jul 15, 2016 at 8:34 AM, Charlie T, K3ICH <[email protected]> wrote: > One other question I have concerns the length of these "EFHW" antennas that > many are using. > That is, are they REALLY End Fed Half-Waves? In other words, are they cut > to be an electrical half wave-length or, are they simply a convenient > length of wire, that is fed at one end? > There could be a drastic difference in the feed point impedance depending > on this parameter. > > Also, what's wrong with making a true "Zepp" antenna on the higher bands by > adding the required length of twin lead for the ¼λ matching section? On > 20 M and up, this would result in a fairly easy length of wire to deal > with. > > Anybody tried that approach? I know the "J-Poles" are popular on VHF, but > how about a 20 meter wire J-Pole? > > 73, Charlie k3ICH > > > -----Original Message----- > From: Elecraft [mailto:[email protected]] On Behalf Of Jim > Brown > Sent: Thursday, July 14, 2016 11:42 PM > To: [email protected] > Subject: Re: [Elecraft] Elecraft] KX2 > > On Thu,7/14/2016 2:54 PM, Fred C. Jensen wrote: > > I use an EFHW on 80-10, no dedicated counterpoise, no coax length rqmts. > > > > ______________________________________________________________ > 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]
