Hi Jeff,
Thanks for the message! 
It sure has been some time. Since last being active in mid-2021 I’ve gone down a few different paths, exploring and try my hand at many different things. But I thought now is about time I get back into what got me into technology in the first place.
With a few years of experience under my belt and a fresh set of eyes, there’s a number of things I’m now stumbling across which I missed first time round, hence the recent forum posts.
That section of the legislation (54) is what I was referred to a few years ago and what LoRa sits under. I couldn’t tell you who suggested this to me, I just had it referenced in my notes from several years ago.
Ack. what you mean regarding chirping and mini-frequency jumps within a channel.
If we assume that LoRa falls under (58), how does it comply with the following limitation? It looks like a similar question was made in this forum post which coincidently you replied to as well.
the radiated peak power spectral density in any 3 kHz must not exceed 25 mW per 3 kHz.
Other relevant links: