How can Internet data be transfered through the electrical wiring of a house without degrading or interference if power cables cause interference to data cables

Question

I’m not sure if I am explaing this right or how it works and I haven’t been able to stop thinking about it for weeks.

So if a power cable emits a magnetic field which can interfere with data transmission through data cables, then how can a tp link, for example, use the mains or cabling of power currents to transfer Internet through a house without being degraded beyond use

In: 3

Answer 1

Ethernet over power line communicates at a much higher frequencies than the 50Hz to 60Hz that AC power is transmitted at, usually between 2Mhz and 50Mhz.

Because it’s using a completely different frequency the ethernet over power adapters are for all intents tuned to that frequency. Similar to how your radio works.