There's a real interesting thread titled "Hobby transmitter regulations in the USA" at https://antiqueradios.com/forums/viewtopic.php?t=453015 It's from earlier this month where someone asked about the conflicts between 15.219 and the general field strength limits of the preceding Part 15 stipulations. It quotes what someone on another forum said and the discussion went on with AI interpretation quotes, class C and E transmitters, final input and output stages, Canadian rules and eventually a "real lawyer" pipes in to answer the question, but the original poster is still confused and responds:
Does Part 15.219 stand on its own, if we operate within the rules of that specific part ? Or do other parts of the part 15 regulations influence it, and also simultaneously apply and need consideration ?
The AI thinks not, it thinks that part 15.219 is an independent legal authorisation pathway for a transmitter abiding by the part 15.219 specifications.
What is your legal opinion (informal is fine since you are not getting paid) on this important question ?
The "lawyer" clearly answers his question again and the discussion continues on... The thread is 2 pages (31 post long), one post that jumped out to me is where a said
Section 219 looks to be the hobbyist friendly implementation of the realization that almost all hobbyists are in no way equipped to make the types of field strength measurements used in the professional world.
Almost any dolt can measure current and length.
Anyway, the thread is worth a read: https://antiqueradios.com/forums/viewtopic.php?t=453015 /p>