Hi,
I think you need to re-read the original post and take it in the spirit it is intended.
The OP has an idea he want's to pursue for personal interest, it doesn't involve connecting to the mains, he has a very noisy environment and want to see if he can exploit that phenomenon in his interest in low power devices.
More power to him (pun intended), if he can get a good reliable signal that can be used in his situation good, if not the just as good.
In either case he will have learnt something in his endeavors.
Tom... 