Well, I can see I've made this _way too_ complicated. Here's what NASA uses for a radio meteor antenna. I can see that this PVC ground mounted Yagi is easily adaptable to a portable model - http://www.nasa.gov/images/content/192889main_msfc_forward_scatter_radar_yag... at http://www.nasa.gov/offices/meo/outreach/forward_scatter_detail.html The PVC pipe version is the "upgrade" from their "professionally mounted" commercial Yagi from Radio Shack that they used to use - http://www.spaceweather.com/glossary/images/Ch4meteorantenna_med.jpg - Kurt ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping