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A comment on A radio frequency exposure test finds an iPhone 11 Pro exceeds the FCC's limit. Parent comment

Re:A radio frequency exposure test finds an iPhone 11 Pro ex... by johnr2 on Friday February 14, 2020 @02:23PM (#22329426)
> RF burns are a right of passage for PA designers, and are harmless as it's the outer skin layers.

A literal example of skin effect?

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Re:A radio frequency exposure test finds an iPhone 11 Pro ex... by madengr on Friday February 14, 2020 @04:43PM (#22330700)
Yep. Put your finger on the corner of the output coupling cap on a 50 Watt S-band PA. It will turn your skin black from the charring, but doesn't penetrate into the live tissue. Just don't leave it on too long.

Could probably gives non-permanent tattoos with this method.

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