Dave, I live within 2 miles of high power pager transmitters and 2 FM radio broadcast transmitters . I remove all traces of the above by careful selection of fixed bandpass and tunable notch filters located at the receiver end.
The pager transmitters at rx frequency were 5/9 at receiver end WITHOUT any antenna! The pager rx would 'pull' the FM broadcast rx into the am band (before filtering) .
Sorry , I guess you already know all that - thanks for the feed all the same.