Question
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?
Answer Options
- 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
- D) Each transmitter operating with a duty cycle greater than 50 percent
Correct Answer: C
Explanation
In shared environments, such as repeater sites or antenna farms where multiple transmitters contribute to the total \text{RF} field strength, the \text{FCC} requires that responsibility for mitigating any MPE over-exposure situation be shared fairly among the users. The limit applies to the sum of all contributors.
The FCC rule mandates that the operators and licensees of Each transmitter that produces 5 percent or more of its \text{MPE} limit in areas where the total \text{MPE} limit is exceeded are responsible for correcting the situation. This rule ensures that all significant contributors to the total \text{RF} energy on a site share the duty and cost of bringing the overall exposure level back into compliance.
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