What is the difference in Specific Absorbtion Rate SAR (watts per kg) and normal RF measurements such as watts per cm squared?
There is often a lot of confusion about this. SAR is a measurement that generally applies to the NEAR FIELD (within one wavelength) of an RF emitting device such as a cell phone and relates to the amount of energy a human body absorbs from that device. This requires a laboratory type setup with very expensive equipment and 3-D modeling software. Most standard RF measurements deal in FAR FIELD (beyond one wavelength) energy modeling, which is a very different type of exposure. The two readings cannot really be converted back and forth.
