I had verticals on concrete, roof shingle and metal roofs. Always radials lying on top. The metal roof was the best by far.
One way to find out how much the roof is affecting the performance of a beam is to look at SWR changes as the antenna is rotating. Ignacy, NO9E -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-anyone-have-experience-with-effects-of-metal-roofs-on-antenna-performace-tp7576265p7576322.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

