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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