Extra exam question E0A02
Subelement E0, SAFETY· Group E0A
When evaluating RF exposure levels from your station at a neighbor’s home, what must you do?
- A.Ensure signals from your station are less than the controlled maximum permissible exposure (MPE) limits
- B.Ensure signals from your station are less than the uncontrolled maximum permissible exposure (MPE) limits (correct answer)
- C.Ensure signals from your station are less than the controlled maximum permissible emission (MPE) limits
- D.Ensure signals from your station are less than the uncontrolled maximum permissible emission (MPE) limits
WhyEvaluating RF exposure at a neighbor's home requires ensuring signals from your station are less than the uncontrolled maximum permissible exposure limits. When evaluating RF exposure at a neighbor's home, a location the amateur doesn't control and where the neighbor hasn't been made aware of or trained on RF safety, the applicable standard is the stricter uncontrolled maximum permissible exposure limit, not the higher controlled limit that applies only to the amateur's own station location where the operator has direct control over exposure, answer B. The controlled limit is the wrong standard for a neighbor's property, and "maximum permissible emission" isn't the correct term at all, the FCC's standard is maximum permissible exposure, not emission.
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.
Related questions
- E0A01What is the primary function of an external earth connection or ground rod?
- E0A03Over what range of frequencies are the FCC human body RF exposure limits most restrictive?
- E0A04When 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?
- E0A05What hazard is created by operating at microwave frequencies?
- E0A06Why are there separate electric (E) and magnetic (H) MPE limits at frequencies below 300 MHz?