Hello mates,
Im student of electronics and I have an idea that id like some opnions/sugestions from more experienced ppl. I dont know if theres similar project done already, but I couldnt find any info related.
So my idea is to make a intercom that uses the residential electrical wiring to conduct my signal. My energy Co supply me with a 60Hz AC power, and my 1sts divagations were to transmit my audio signal modulated by a simple AM modulator.
A simplified resume of the information flow:
Microfone -> Pre-Amplificator -> AM Modulator -> Electical wiring -> Receptor(de-modulator) -> Amplificator -> Speakers
My main question is:
*Its possible to use common residential electric wiring as line of transmission of AM signals? - Its possible to transmit signals of some KHz trough ondinary cooper conductor?
I though in some kind of digital modulation too, but it looks way more complex and expensive. I dont need HI-Fi output, I just need the output sound to be comprehensible, and it can have a very low range.
My purpose with this is didatic, so I would appreciate any theoretical/pratical input about it. Sugestions about a easier way to do this also would be very appreciated.
I must know its viability to start to work on this, hence I can have more questions
.
I hope that I was clear there, English is not my native language so, sorry for my bad English.
Thank you for your attention,
Stanley