Comments on: A New Antenna for My KX-1 http://kb6nu.com/a-new-antenna-for-my-kx-1/ My personal adventures in amateur radio Thu, 20 Nov 2008 17:51:18 +0000 http://wordpress.org/?v=2.6.2 By: Dan KB6NU http://kb6nu.com/a-new-antenna-for-my-kx-1/#comment-168803 Dan KB6NU Sun, 02 Sep 2007 12:48:51 +0000 http://kb6nu.com/a-new-antenna-for-my-kx-1/#comment-168803 I hadn't thought about it that way, but it's' an interesting idea. I will take my antenna analyzer and make some measusrements. I do have toroids and will try the balun thing next time. I don't think I'll need such a big toroid, though, since the KX-1 only puts out 3.5 W. I hadn’t thought about it that way, but it’s’ an interesting idea. I will take my antenna analyzer and make some measusrements.

I do have toroids and will try the balun thing next time. I don’t think I’ll need such a big toroid, though, since the KX-1 only puts out 3.5 W.

]]> By: KA8WFC http://kb6nu.com/a-new-antenna-for-my-kx-1/#comment-168681 KA8WFC Sat, 01 Sep 2007 17:08:12 +0000 http://kb6nu.com/a-new-antenna-for-my-kx-1/#comment-168681 Hi Dan! Nice antenna idea. Your quarter-wave (instead of half-wave) feedline might be helping you out. The Z0 of the twisted pair is probably around 100 Ohms and the antenna feedpoint Z is probably 15-25 Ohms since it's low to the ground, so your input Z at the end of the feedline might actually be sqrt(100*25)=50 Ohms! If you've got a big #43 (or similar mix) toroid around, you could also make a balun at the rig end by wrapping the twisted pair around the toroid several times before connecting to the binding post adapter. Have fun! Hi Dan! Nice antenna idea. Your quarter-wave (instead of half-wave) feedline might be helping you out. The Z0 of the twisted pair is probably around 100 Ohms and the antenna feedpoint Z is probably 15-25 Ohms since it’s low to the ground, so your input Z at the end of the feedline might actually be sqrt(100*25)=50 Ohms! If you’ve got a big #43 (or similar mix) toroid around, you could also make a balun at the rig end by wrapping the twisted pair around the toroid several times before connecting to the binding post adapter. Have fun!

]]> By: KI4WLR http://kb6nu.com/a-new-antenna-for-my-kx-1/#comment-167448 KI4WLR Wed, 29 Aug 2007 12:34:11 +0000 http://kb6nu.com/a-new-antenna-for-my-kx-1/#comment-167448 Thanks for the post, I am just about ready to put up an 80 meter dipole, so thanks for the description, it sounds very interesting. Be sure to post the results you get when you try it out. 73, KI4WLR http://www.ki4wlr.com Thanks for the post, I am just about ready to put up an 80 meter dipole, so thanks for the description, it sounds very interesting. Be sure to post the results you get when you try it out.

73, KI4WLR
http://www.ki4wlr.com

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