> Serious suggestion: Try enclosing in a ferrous metal screen > with no large slots or holes. This could be eg a refrigerator > (going or not) BUT she may take exception to that but various > "tin" trunks etc may do. It MUST be iron/steel and not a non > ferrous material. The test need last only seconds to see if it > makes a difference. 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. One problem was connecting foil to the van body. I too thought of a tin trunk or fridge-like box, but the van seemed the most available and accessible to her. I'm going to call her first thing in the morning to tell her about the RSM site (she's present e-mailless) and will ask if she's come up with anything Faraday cage-wise -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist