RF Exposure (MPE) Calculator — Estimate your station's RF power density at a given distance and compare it to the FCC's Maximum Permissible Exposure limits (47 CFR 1.1310).
This is a simplified far-field, main-beam estimate — the same method used in FCC OET Bulletin 65 and ARRL worksheets. It doesn't account for near-field effects, ground reflection, or multiple co-located antennas. Use it for planning; it isn't a substitute for a full station evaluation if your results are close to a limit.