Yeah, plain 307's don't survive long in conditions like this, even with welded elements: http://www.tparc.org/dogmtn.html
That's why all the yagi's are Sinclair 307RCHD, Scala, Comprod, or other similar designs. I've seen dipoles snapped off Sinclair 210C4HD's too due to ice on other sites, and not falling ice either, hard rime ice and wind causing metal fatigue. Also found a SRL249 one spring in the snow, with its .288" sched 40 mount pipe still attached... where it fractured off at the clamp that was holding it to the top of the tower. Explained why the IMTS channel fell off the air. :) Crazy stuff. :) Lee --- In [email protected], "Chuck Kelsey" <wb2...@...> wrote: > > A Sinclair UHF yagi with broken elements? I saw one that got run over by a > large truck - got a little bent up, but that's all. > > Chuck > WB2EDV > >
