Total posts : 45366
First of all, why do you say that C-QUAM won’t work in a Part 15.219 compliant system? I’m not aware of any reason why that would be the case. The transmission range of C-QUAM isn’t much less than standard AM. So other than getting a transmitter built, I would think it should work.
As for a carrier-current setup, the main problem I am aware of is hum. Most carrier-current systems seem to be plagued by a lot of 60 and 120 Hz hum. I am not sure if that would affect the ability of the decoder in the receiver to properly detect the C-QUAM signal.
My main question would not be technical feasibility, but rather why are you doing this? There aren’t any commercially available receivers any more that I know of. So who is going to listen to you in stereo? If you just want to tinker to see how it sounds, go for it! But I think you will be the only listener, especially indoors. The last C-QUAM receivers that were mass produced were car radios, as far as I know.
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