Try adding a capacitor across the AC line or line filter right near the fluorescent light. Noise can be generated from the light itself. Metal screen, grounded, may help over the light?
If you are trying to pick up weak stations best to turn off the fluorescent lights.
Norm
:My shop has fluorescent lights which creat lots of noise in AM radios. what can I do to cut down on this noise? Thanks Bud
T.