Advice I read years back cautioned to stay away from the foam dielectric 300 Ohm ribbon lead. The solid dielectric handles more power and doesn't get water contamination in the dielectric.
How does modeling with 450 Ohm window lead work out? That would suggest a 9:1 balun. The reason I ask is because I built a double Zepp type antenna in the early '90s and fed it with 300 Ohm ribbon lead from the doublet to the shack. There was a noteable performance increase when the wind took it down and I used 450 Ohm window lead instead. Also, the 450 Ohm window lead has proven very rugged for me. The doublet has been up at three different QTHs and is almost 20 years old. 73, de Nate N0NB >> -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Ham radio, Linux, bikes, and more: http://www.n0nb.us ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
