> It has an antenna. A sharp knife or some conductive tape or adhesive > and Bob's your uncle.
Hmm... I thought the antenna on those devices nowadays are physically just traces printed on a PCB. They're not necessarily very easy to find AFAIK (hell, just opening the device such that you can close it again is becoming quite difficult) and conductive tape probably wouldn't help since the traces are coated, but if you manage to open the device, then find the relevant traces and know how to use a knife to cut some part of it... maybe it'll work (tho since it's very high-frequency signals, cutting a trace might be like adding an inline capacitance which might not really stop the signal :-( ). I think I'd need the help of an engineer designing such antennas before I'd be convinced that I've managed to do what I intended. Stefan