I (and some neighbors) want to use Ethernet-over-powerline extenders to join computer networks in adjacent houses. This is never a 'supported' use case with this gear, and I doubt the power company will want to spend time looking things up for me. I don't really want to entertain that conversation with them.
My neighborhood has all buried utility service. There are large metal green boxes on cement pads between some houses with transformers in them, and smaller plastic boxes which are just junctions or conduit ends I think, between other houses. Approximately three houses for each pad mounted transformer.
My first thought was to try using my old x-10 gear between houses, but x-10 is such junk it didn't work on the same power strip...
I have an HP communications cable toner/tracer, but it's meant for 20-28 gauge copper. I imagine I could use a toner (relatively) safely on the neutral, but can I expect it to work at hundreds of feet distance on 2 ought aluminum worth a damn?
Is there a better trick to tell if we're on the same transformer before I buy the networking gear? I don't really want to run extension cords across the street.
What other equipment communicates over powerline that I'm just not thinking of that I could use to test?