When I went to install the antenna for the GDL I noticed that one of the screws in the base of the antenna was loose. ( Bugger! ) I purchased some " J-B Weld " and applied a small amount around the base of the screw and after 24 hours curing the screw is now secure in the base. I made a gasket for the base of the antenna to keep water and dirt out. With help from KSC we have now installed the GDL antenna and torqued the nuts to 1.6 Nm.