On May 3, 2023, the FCC now requires all amateur licensees to conduct RF exposure evaluations.
This update was reported on the ARRL website on 5/5/2023.
The ARRL website features an RF Exposure landing page with resources, including an RF exposure calculator.
I have used the calculator for a vertical, quarter wave antenna operating at 100 watts across 40M, 20M, and 15M. As you might expect, the 40M and 20M bands require a couple of feet from the antenna for safe distance from the RF field.
The 15M band, operating at, say, 21.3 mHz requires a minimum safe distance of 2.8 feet from the vertical antenna.
I printed out the Exposure Calculator results and will be carrying them with me to POTA parks and other public venues...just in case someone asks about RF exposure safety!
Mike Brown
(908) 892-3016 iphone
Flemington NJ