At what aggregate power level is an MPE study required?

An MPE (Maximum Permissible Exposure) study is required at an aggregate power level of 1000 Watts Effective Radiated Power (ERP). This requirement is in place to ensure that emissions from broadcasting and communication facilities do not exceed levels that could pose a risk to human health. The 1000 Watts ERP threshold is significant because it identifies the point at which the potential exposure to electromagnetic fields (EMF) becomes a consideration for public safety, necessitating a detailed evaluation and analysis of the data.

This requirement helps to align with federal safety standards and regulations designed to protect individuals who may be exposed to RF emissions. By enforcing the MPE study at this level, regulatory bodies ensure that higher-power transmission systems undergo appropriate scrutiny to maintain safety for workers and the general public located near these facilities.

In contrast, lower power levels do not typically trigger the need for a formal study, as the potential for harmful exposure decreases.