On 2/17/2013 10:11 AM, RussellMc wrote: > Wondering about the local HV power lines when house hunting (quite=20 > apart from the aesthetics) may be worth considering. Or not.=20 > Super-heavy-usage cellphone users might consider using a corded=20 > earpiece (and wonder about that) or a bluetooth headset (and wonder=20 > about that). Carrying a GSM cellphone, with its propensity to=20 > occasionally produce RF bursts 'because it wants to' and well=20 > demonstrated ability to inject low frequency signals into about any=20 > equipment that it wants to, in a 'breastpocket' may indeed be=20 > harmless. And more. Russell=20 May be worth considering... or not. RF communication as well as power=20 distribution are comparatively new in human evolution. Radio is about=20 100 years old, and power distribution goes a couple decades before. We=20 know the effects of high concentrations of non-ionizing radiation. It=20 seems we're less sure about the effects of low levels. Joe, N6DGY --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .