OK, Let's see, from the top:
How should I extend the telescoping antennae? Six or ten feet of copper wire, attached with a clip? I could run it out the window, the place I usually set the radio is by a window....
Yes, internet radio probably does not work on dial-up at 21KB and the shop is 50 yards from the house anyway.
I do have a Sirius satellite radio in the car, and intend to eventually get one in the shop, too, but that does not solve the problem: I want to listen to local FM, with local news, weather etc, and also I prefer some of the local station programming (or their take on NPR) to the 130 channels that Sirius offers. I can pick up this station with a $5 clock radio, when the fluorescents are not on.
I am not basing this complaint on one light, I have approximately 6 or 8 of them in use, and while I have not tried each one individually, I have tried various subsets of them. And also the one, old, 4' shoplight which does not cause the problem. Right now they are wired "temporarily" with pigtails (grounded 3-wire cords plugged-in). Eventually there will be a lot more of them, maybe 20 or more (which I already have bought, and they are sitting NIB) and they will be wired in steel thinwall conduit, and maybe that conduit shielding will help. But I am not hopeful, when I run the lights in one room (separated by a 12" concrete wall) it still interferes with the radio in the other room. Also the problem occurs whether they are plugged-in to the same circuit as the radio or not. (And again, not in the cassette or CD, just the FM.)
Each four-tube unit has one "instant-start electronic ballast": Advance Optanium ROP-4P32-SC, high power factor, class P, sound rated A.
As a possibly related issue, of the 6 or 8 that I have in parttime use, I have already had two ballasts go bad, again another possible reason that buying these was such a "deal".
Thanks for your advice.