[TowerTalk] 80m delta loop question
Tony Brock-Fisher
barockteer at aol.com
Mon Dec 8 12:02:17 EST 2008
I have a pair of vertically polarized delta loops on 80, fed as a parasitic array with one reflector. The impedance of each loop is around 100 ohms, so if the feedline length is not really long, I suggest feeding it with a quarter wave section of 75 ohm coax, then 50 ohm back to the shack. Performance from a pair of loops is excellent (gain and f/b). Models much like a four-square (only switchable 180 degrees).
For info on my feed system, access the cebik site and goto http://www.cebik.com/content/a10/wire/hsyg.html
-Tony, K1KP
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