On 5/4/2012 5:52 PM, James Rodenkirch wrote: > What about radials above the ground? Like what I'm planning to install --- > base of the vertical at around 5' to 6' above ground and slope all of the > radials from that 5' or 6' point down to the ground?
N6LF has published extensive work that he did on 40M showing that radials elevated only a feet or so were quite effective, and that a foot higher was better, but close to many radials on the ground. I tried scaling this to 160M, placing radials at about 5 ft. They were NOT particularly effective, and I had the chance to discuss the issue with N6BT, who has studied elevated radial systems extensively on 160M. Paraphrasing Tom, the earth at 160M is a rather different animal than it is at 40M. Tom suggested that 16 ft was a better height for a few elevated radials on160M, and I hope to move the ones on my experimental antenna to that height in the next month or so, perhaps even before leaving for Dayton. 73, Jim K9YC _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
