>> Serious suggestion: Try enclosing in a ferrous metal screen >> It MUST be iron/steel and not a non ferrous material. > You may have missed my comment last night that I'd discussed > with her borrowing a friend's panel van and foiling the windows > and grounding the whole lot. FOIL will not do, as per my above comment, unless it's steel foil, which we (usually) have not got. And, grounding is unlikely to be necessary or useful as long as you get full ferrous enclosure. Grounding would help electrostatic coupling, which this probably isn't. A van etc is not a good choice as you can easily introduce long thin slits which RF just loves to creep through. There are enough solidly steel fully enclosed things in the world that seeking one out is liable to be worthwhile. An old tin trunk, as used of yore for moving house, would suffice. A cabinet type clothes drier (once common, now seldom seen) would be ideal. Just watch the door closures, although these are usually well overlapped. As a bonus, if the cabinet drier worked, although I doubt that it would, she could use one as an escape haven or even bed ! The Salvation army have an extremely good Op Shop just down from you (as I imagine you know)(among the best I've met :-) )(pre-selected dumpster diving at only slightly higher price) and it's just the sort of place to have a cabinet drier or a tin trunk. Worth a try if a solid steel cabinet etc cannot be easily obtained is 'chicken wire' or similar. Fine mesh best. Making a continuous cage with well scrunched together joins would not be overly hard or expensive. I may have some I could lend you if you have none. I suspect that, sadly, none of these solutions are going to work and that she is more likely to be dealing with a psychosomatic problem. I'd be pleased if it was not so and that there turns out to be a bricks ad mortar (or RF and fillings) solution as the alternative can be most intractable. These can be exceedingly real - but the product of the wonderful and arcane workings of our brains. Even the sanest of people can have the strangest problems with selected aspects of their brain functions. Coming to terms with such things when you are otherwise 103% normal can be a challenge. Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist