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1. Topband: Still in search of resonance (score: 1): Author: Carl Braun <Carl.Braun@lairdtech.com>; Date: Fri, 14 Feb 2014 23:14:42 +0000; List Some of you may have followed my efforts in trying to shunt feed my 90' Tri-Ex Skyneedle with 20 meter yagi at 93'. I'm still unable to find any sort of resonance point on the tower. To refresh; /archives//html/Topband/2014-02/msg00232.html (10,343 bytes)
2. Re: Topband: Still in search of resonance (score: 1): Author: HAROLD SMITH JR <w0rihps@sbcglobal.net>; Date: Fri, 14 Feb 2014 15:34:09 -0800 (PST); Sorry Carl, I hit the send button before responding..Now. I believe that first #14 wire is a bit small. I do not believe that you will find a 50ohmZ and X=0 point. I have 80ft of Rohn 45G with a Tel; /archives//html/Topband/2014-02/msg00233.html (11,645 bytes)
3. Re: Topband: Still in search of resonance (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Fri, 14 Feb 2014 18:44:26 -0500; Absolutely! Treating the Sky Needle and the #12 wire as a folded dipole and using 8" for the diameter of the tower, you have a 16:1 step-up with the single #14 wire. If you made a cage of 4 or 6 wir; /archives//html/Topband/2014-02/msg00234.html (11,416 bytes)
4. Re: Topband: Still in search of resonance (score: 1): Author: Carl Braun <Carl.Braun@lairdtech.com>; Date: Fri, 14 Feb 2014 23:53:07 +0000; Thanks Dean The one I'm looking at is the old heathkit with the various coil plug ins. The kit comes with a coil that goes down to 1.600. Is there another one you can recommend that may go down furth; /archives//html/Topband/2014-02/msg00235.html (12,875 bytes)
5. Re: Topband: Still in search of resonance (score: 1): Author: Carl Braun <Carl.Braun@lairdtech.com>; Date: Sat, 15 Feb 2014 00:14:16 +0000; Joe Thank you. Yes I agree. I've got PVC insulator arms that I've already bought fittings for them that will allow me to create a three wire cage spaced any distance I'd like. I presume the cage shou; /archives//html/Topband/2014-02/msg00236.html (13,844 bytes)
6. Re: Topband: Still in search of resonance (score: 1): Author: "Charlie Cunningham" <charlie-cunningham@nc.rr.com>; Date: Fri, 14 Feb 2014 19:23:22 -0500; There seems to be some confusion, Carl! First of all, since the gamma match (regardless of the diameter of the gamma "rod") is a shorted transmission line, less than 1/4 wavelength it WILL have serie; /archives//html/Topband/2014-02/msg00237.html (13,189 bytes)
7. Re: Topband: Still in search of resonance (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Fri, 14 Feb 2014 21:01:49 -0500; Hi Carl, It sounds like you are trying to find 50 ohms on the tower without any series capacitor by looking at R and X. I would not try to do that. The reactance puts you out of range on the MFJ brid; /archives//html/Topband/2014-02/msg00239.html (10,290 bytes)
8. Re: Topband: Still in search of resonance (score: 1): Author: Carl Braun <Carl.Braun@lairdtech.com>; Date: Sat, 15 Feb 2014 04:51:46 +0000; Tom and all Thanks for the responses. I was under the assumption that I would find a 50 ohm tap on the tower but with a lot of reactance requiring a cap that would tune out the X but leave the 50 ohm; /archives//html/Topband/2014-02/msg00246.html (11,080 bytes)
9. Re: Topband: Still in search of resonance (score: 1): Author: Carl Braun <Carl.Braun@lairdtech.com>; Date: Sat, 15 Feb 2014 20:53:05 +0000; Tom After reading your post yesterday I had a dream that I woke up and saw one of those flying monkeys on top of my tower laughing and sawing away. Carl AG6X Hi Carl, It sounds like you are trying to; /archives//html/Topband/2014-02/msg00271.html (10,230 bytes)
10. Re: Topband: Still in search of resonance (score: 1): Author: "Charlie Cunningham" <charlie-cunningham@nc.rr.com>; Date: Sat, 15 Feb 2014 15:58:53 -0500; Hee! Tom After reading your post yesterday I had a dream that I woke up and saw one of those flying monkeys on top of my tower laughing and sawing away. Carl AG6X Hi Carl, It sounds like you are tryi; /archives//html/Topband/2014-02/msg00272.html (11,335 bytes)

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