Last week I reported having some issues with my breakers tripping when I transmit with my amateur radio at anything above fifty watts. I have found the problem. It seems that Eaton, the company that made my circuit breakers, shipped out a batch of AFCI breakers that trip when exposed to strong RF interference.

Part 15 of the FCC rules state:

1) The device may not cause harmful interference.

2) The device must accept any interference received, including interference that may cause undesired operation.

I will be contacting Eaton on Monday.

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