Home Networking

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A community to help people learn, install, set up or troubleshoot their home network equipment and solutions.

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How the f*ck does a modem work? (alien.top)

submitted 11 months ago by EgoPoweredDreams@alien.top to c/homenetworking@selfhosted.forum

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Google searches have only yielded 5th grade level examples (“the modem talks between your ISP and your home network!”) or articles I would need a degree to understand. Can anyone provide an explanation that’s somewhere in between the two? I understand the fundamentals of how the Internet works, and how LAN works regarding a router and individual devices, but I’m curious to know more about the link between those.

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[–] dan1son@alien.top 1 points 11 months ago

Yeah man I got you. Go to your local community college and take a course on IP networking. Then if you want to go deeper take some courses on physics and RF.

But yeah... a modem is a modulator demodulator. It modulates an IP stream into RF over whatever medium the modem is made for (Coax, fiber, copper, satellite, etc.). And back. The rest is just IP networking.