I believe that what you’re looking for is called a “spectrum analyzer”. You’ll need a calibrated antenna, too.
I’m guessing that SAR (specific absorption rate) is usually measured with a block of soggy flesh-imitating goo that’s set up as a calorimeter, though. You could look up how the FCC defines SAR, perhaps.
The consensus standard for this sort of test is IEEE 1528, and you are absolutely correct. The test uses a gel phantom (the standard provides a few formulations for different frequencies but most are a mixture of water, salt, sugar, and a thickener) and it is poked at with a sensitive probe to measure local temperature rise.
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[ 3.4 ms ] story [ 20.0 ms ] threadI’m guessing that SAR (specific absorption rate) is usually measured with a block of soggy flesh-imitating goo that’s set up as a calorimeter, though. You could look up how the FCC defines SAR, perhaps.
Which is why mobile phones are completely harmless (from a radiation perspective anyway).
Careful not to go out in the sunshine though.