So the Access Points have to be on the same electrical circuit, not just the same location?
[...] RCA plug in devices that I can connect to the phone jack and outlet [...]. Are they wireless transmitters or does the phone run over the power line?
- No, the APs can be on any circuit within the same service unit (home/business).
- In contrast to power line networking hardware, I believe that the RCA phone jack extension devices you're referring to use a high frequency radio band to communicate between units. That's wireless (like indoor wireless phones), but not WiFi.
