A-ha, that is it. It is part 15 after-all. I’ll have to take some time to re-digest part 15. The last time I read part 15, I was sixteen years old and was assembling a 50mW home made am radio brodcast kit. It’s been over forty years since then. I suspect that it’s been updated at least a few times since then. Most people never take part 15 very seriously because in the past it typically only governed children’s toys and old fashioned kitchen appliances for the most part. Even with spread spectrum which can actually operate just below the noise floor, it’s hard to imagine putting such low power devices to practical use in long range radio communications.
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