Extra exam question E0A04
Subelement E0, SAFETY· Group E0A
When evaluating a site with multiple transmitters operating at the same time, the operators and licensees of which transmitters are responsible for mitigating over-exposure situations?
- A.Each transmitter that produces 20 percent or more of its MPE limit in areas where the total MPE limit is exceeded
- B.Each transmitter operating with a duty cycle greater than 25 percent
- C.Each transmitter that produces 5 percent or more of its MPE limit in areas where the total MPE limit is exceeded (correct answer)
- D.Each transmitter operating with a duty cycle greater than 50 percent
WhyAt a site with multiple transmitters operating simultaneously, each transmitter that produces 5 percent or more of its MPE limit in an over-limit area is responsible for mitigating the over-exposure. At a site with multiple transmitters operating simultaneously, responsibility for mitigating an over-exposure situation falls on each transmitter that individually contributes 5 percent or more of its own MPE limit in an area where the combined total MPE limit is exceeded, a threshold meant to catch every meaningful contributor without holding a negligible one accountable, answer C. Duty-cycle-based thresholds and a 20-percent contribution threshold aren't the actual standard the FCC uses for apportioning this responsibility.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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