A little dab of Loctite (dont let Loctite get on plastic! I once found
that out the hard way) will help keep the little antenna screw and nut
tight.I have an old Shortwave radio (one of many radios I bought at the
Goodwill store years ago) and the antenna wouldn't stay tightened up no
matter what.I cut a little short piece of clear plastic tubing and I
slipped that down over the whip antenna to keep the antenna upright,it
works like a charm.
cuhulin