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Nick -
Probably not much in the RF spectrum from the DC current coming out of the PV arrays themselves... however, the business of turning that into 120/240/480/xKW high voltage transmission-grade 60hz AC could very well be leaking RF frequency radiation... just like the powerlines overhead do.Hi, Jim, What is alleged is that the sound is similar to that made while passing under power lines but louder. Just to clarify, it is a sound picked up by a car radio as one passes near the array. I guess I was wondering two things: could the array generate rf's, and, if so, of what frequency? Or, Could an array of that size pick up and amplify rf's via resonance? There is a Wikipedia article on "Mains Hum" that might give you a better idea of the details of the myriad electromechanical coupling modes that can lead to the complex spectral energy often encountered in such systems. You might approach the operators of the power plant and suggest that they try humbucking their systems, but be sure to enunciate clearly as they might mistake your suggestion for something more rude like Humbuggery which of course is phonetically but not etymologically related to general buggery! Your "balmy" inquiries always yield the best humbuckery and hobknobbery here, so don't stop!This is admittedly one of my balmy, idiot-inquiries, but I wondered if anybody had a first thought. See you soon! - Steve |
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