I have one also about all I can add is to cut very little off at a time till you get it where you want it. The antenna works FB with my KX3 without any tuner used after trimming.
73, Fred/N0AZZ K3 Ser # 6730--KX3 # 2573--K2/100 # 6470-KAT100 P3/SVGA--KPA500--KAT500--W2 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ariel Jacala Sent: Tuesday, July 09, 2013 5:12 AM To: Esquer Dave Cc: [email protected] Subject: Re: [Elecraft] KX3: LNRPrecision EndFedz EF-10/20/40KMII Antenna SWR tuning Dave, If you are primarily a CW op then you are not going to grt much better. If you.operate mostly. SSB them you may want to shorten it. If you want to split the difference then you have shorten it less than if you were optimize it for phone. LNR does not recommend using a tuner although i use one anyway. I have one of those as well and used it on a trip to Belgium. Since then i made my own matchbox with a bigger inductor to handle more power. I use 45 feet of wire and i tune it for all bands from 80 to 10 using the KX3 tuner. You will be happy with a Par antenna as well. Just do not put more than 25 watts through it. You will burn up the matchbox if you do. Ariel NY4G Sent from my iPhone On Jul 9, 2013, at 12:52 AM, "Esquer Dave" <[email protected]> wrote: > Newbie KX3 owner ALERT > LNR Precision EndFedz EF-10/20/40KMII Antenna SWR tuning help needed (kind, > constructive, helpful discussions/words please)! > > Measured SWR (2 measurements at 2 different times of the > day) > Mhz At SO-239 after 26' coax after 41' coax run > 7.0 1.35 1.1 1.0 > 7.125 4.0 2.5 1.5 > 7.3 10.0 6.0 2.0 > > 14.0 1.5 1.2 1.5 > 14.15 1.25 1.1 1.5 > 14.35 1.1 1.1 1.6 > > 28.0 1.8 1.7 1.6 > 28.3 2.0 1.8 1.7 > 29.0 3.5 2.5 3.0 > 29.7 3.9 4.0 4.2 > > My ideal shack location is with the 26' of coax, the 41' is secondary outside > location (fair weather). > > What should I do for the 40 and 10 meter wavelengths to tune? I think > I leave the 20 meter portion alone? Once the 20 meter is tuned, the 10 meter > falls into place supposedly but … Why do my values vary so much? I sort of > see a pattern. I want to physically tune the antenna and not rely on the > internal Elecraft ATU. I want to maximize my QRP. > > Inverted L configuration with 2/3 vertical and 1/3 horizontal. > > Equipment: > LNRPrecision EndFedz EF-10/20/40KMII Antenna Elecraft KX3, ATU > installed but disabled (not bypassed). > LMR240UF for all coax > MFJ870 Grandmaster SWR meter > All frequencies tuned using FM option at 5 watts I don't have an > antenna analyzer, yet. > > Just like in woodshop, measure twice, cut once! Again, NEWBIE advice much > appreciated. > > TIA, > Dave, K6WDE > > > > > > ______________________________________________________________ > 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 ______________________________________________________________ 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 ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2904 / Virus Database: 3204/6475 - Release Date: 07/08/13 ______________________________________________________________ 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
