OK, you got me... But a statement that the elements break off all the time was a bit of a set up. At your site, I can see it. At 98% of the sites hams are at, this wouldn't be the case.
Indeed, you have a unique situation. Chuck WB2EDV ----- Original Message ----- From: "ve7fet" <[email protected]> To: <[email protected]> Sent: Monday, March 30, 2009 10:44 PM Subject: [Repeater-Builder] Re: Need supplier for UHF welded yagi > 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
