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

The data is travelling as 1’s and 0’s. Meaning that even if the voltage fluctuate, it wont affect the message as long as you can make out if its a 1 or a 0. This is what is called a digital format. Analog equipment use the voltage level to send more information than simply 1 or 0 and can thus be affected by magnetic fields.

Also the data only has to make it to a data-center. The isp has servers positioned not too far from your house which will then send the data to the correct domain/server.