I engrave a scrap piece of minimula tubing, slip it on the coax B4 installing the connector, and pinch it a bit to hold it in place. 73, Dave, K3BHJ -- FAQ on WWW: http://www.contesting.com/FAQ/towertalk Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: owner-towertalk@contesting.com