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T0C02
Which of the following bands has the lowest maximum permissible exposure for RF safety?
Pick an answer to check it.
Answer: B. 50 MHz
50 MHz has the lowest maximum permissible exposure (MPE) of these choices. The FCC limits are strictest from 30 to 300 MHz, where the human body absorbs RF energy most easily. 3.5, 440, and 1296 MHz all have higher allowed levels.
Tip: Strictest limits: 30-300 MHz, like 6 meters.