I'm trying to reverse engineer a piece of electronics that seems to be using ~1Mhz differential phase shift keying to send a signal over a 2-wire line that's also used for low-voltage power.
So newbie question here, but how do I both encode/decode a PSK signal? In terms of do I need to build a custom circuit to do it (I've found diagrams of such)? Or are there cheap/small chips that will do this for me? I ultimately need a micro-controller both reading and sending the signal.