Thanks Jerry,
All great ideas. I will try them.
I tend not to ground the filter since I don't always have it in line, I sometimes MW dx. Shack is on the second floor, though I do have a ground line down to the yard. So far I've made solid QSOs in spite of the interference, since most of us hard core CW guys have the built-in filter between our ears, hi.
73
Jerry N3HAM
