The FCC published a draft rule yesterday that would tighten output-power limits on 2.4GHz RC transmitters. Here's what we know, what we don't, and what it means if you race in the US.
The headline change: max effective radiated power drops from 100mW to 80mW on the top four channels. For most factory transmitters, this is a firmware update away — you'll lose a little range, gain a little interference immunity. Nothing catastrophic.
The weird change: homebrew transmitters and modified stock radios need to be re-certified under the new rule. That's going to catch the handful of drivers running custom firmware, and nobody's sure yet how enforcement works at the track level.
Public comment period closes June 15. If you run 2.4GHz competitively, now's the time to weigh in.