Responding to comments from others...
Carrier current (CC) systems authorized by the FCC under Part 15.221 use intentional radiators, and so are not exempt from the rules that apply to them.
A CC intentional radiator consists of the a-c wiring in one or more structures, which replace(s) the 3-meter radiating conductor length permitted by FCC Part 15.219(b).
Both radiator configurations supply a radio wave to the antenna of a MW receiver. CC systems do NOT provide their r-f signal to an AM receiver by conduction through their a-c line cords. AM receivers have no means of receiving, detecting, and amplifying such a conducted r-f signal on the a-c line. An AM receiver responds only to a radiated r-f signal arriving at its antenna.
So there is no operational difference at all in this respect between the antenna system of a CC setup and a system operating under 15.219, except for the physical form of the intentional radiators they use, and the maximum field both of them can produce at a given distance from those intentional radiators.
The downside of this is that CC systems are subject to the more restrictive requirements of FCC Part 15.221 (a).
RF
Carrier current (CC) systems authorized by the FCC under Part 15.221 use intentional radiators, and so are not exempt from the rules that apply to them.
A CC intentional radiator consists of the a-c wiring in one or more structures, which replace(s) the 3-meter radiating conductor length permitted by FCC Part 15.219(b).
Both radiator configurations supply a radio wave to the antenna of a MW receiver. CC systems do NOT provide their r-f signal to an AM receiver by conduction through their a-c line cords. AM receivers have no means of receiving, detecting, and amplifying such a conducted r-f signal on the a-c line. An AM receiver responds only to a radiated r-f signal arriving at its antenna.
So there is no operational difference at all in this respect between the antenna system of a CC setup and a system operating under 15.219, except for the physical form of the intentional radiators they use, and the maximum field both of them can produce at a given distance from those intentional radiators.
The downside of this is that CC systems are subject to the more restrictive requirements of FCC Part 15.221 (a).
RF