Loading ...“The areas near the ear were most sensitive to these RF exposures; modulating the RF energy could produce a variety of effects including the perception of “buffeting of the head” or pressure on the face/head without dizziness or nausea, a “pins and needles sensation,” and a sound described as a “buzz, clicking, hiss, or knocking” within the head for RF frequencies between 0.4-3 GHz, depending on pulse width, pulse-repetition frequency (PRF), and peak power density… Frey reported these symptoms with an RF source transmitting at 1.3 GHz (which provides the greatest absorption depth into cortical tissue) with a PRF of 244 Hz, 6 μs pulse width, peak power density of 267 mW/cm2, and average power density of 0.4 mW/cm2. Others have demonstrated that GHz range, pulsed RF energy (~14μs pulse width) interacting with common materials can produce external sounds that are audible to nearby humans.”
get ready for a mask with a metal helmet