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My house gets internet via a magical coax cable that is, I assume, connected to the rest of the world via my Internet Service Provider. This cable connects directly into my router, which links to all the devices in my home.

My question is: Where does this magic cable go?

Some followup questions: How long is the cable?

How does so much data go through a single-pin coax cable? Wouldn't it be better if there were more pins, like in a twinax configuration?

There are also other houses in my neighborhood. Are their cables connected to mine? Can their routers see the packets sent by my router, similar to ethernet?

How has your day been?

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[-] JoMiran@lemmy.ml 25 points 2 days ago

Where does this magic cable go?

The answer is either "it goes on the threaded port of your cable modem" or "it goes to a distribution panel somewhere outside". It really depends what you meant by the question.

How long is the cable?

Normally you want to keep the cable as short as possible.

How does so much data go through a single-pin coax cable?

Technology has continued to progress but I think many cable providers are capping at around 100 mbps. I could be wrong.

Wouldn't it be better if there were more pins, like in a twinax configuration?

Not necessarily.

There are also other houses in my neighborhood. Are their cables connected to mine?

It depends on the configuration your ISP used. Many would in fact share a pipe's bandwidth amongst blocks of homes. I not sure how prevalent that practice is today.

Can their routers see the packets sent by my router, similar to ethernet?

No. Every single home is on a different network.

How has your day been?

It's almost 1:00pm and I've been so busy that I haven't had a chance to have breakfast yet.

[-] Shdwdrgn@mander.xyz 5 points 2 days ago* (last edited 2 days ago)

I would say cable TV coax has quite a lot more capacity than what the providers let on. In my city they offered up to 50mbps at over $100/month. Then they lost their lawsuit trying to prevent the city from installing its own fiber network and suddenly the cable company decided they could offer 150mbps for around $75/month (with no equipment changes). Once the fiber network started becoming operational (offering 1gbps bidirectional for$50/month) the cable company decided they're better also offer gigabit connection speeds, but once again they simply flipped a switch to increase your bandwidth. This capability has been in place for quite some time, they just didn't want to offer it and their illegal "monopoly" gave them no incentive to provide competitive speeds.

*I say "monopoly" even though we technically also have DSL available in town. However when I asked one of the techs why DSL couldn't give me more than 896kps upload speed, I was told that the cable company had an arrangement with them which prevented the DSL from providing the speeds needed by businesses. After the lawsuit that broke up the state-wide bans on other providers, this practice was exposed and also broken up, so now the telco is able to max out their DSL speeds.

[-] ragebutt@lemmy.dbzer0.com 2 points 2 days ago

I have 1gig cable and it works fine. Theoretically can work up to 10 gig down and 1gig up with docsis3.1, which is part of why the US drags its feet on fiber rollout, but it’s far more sensitive to quality of cable

[-] Shdwdrgn@mander.xyz 1 points 1 day ago

They don't want to admit they've been screwing us over even though we all know it's happening. All these companies could have rolled out suitable internet speeds a decade earlier but they would rather limit everyone to the lowest common denominator so they don't have to admit just how terrible their equipment is in most locations.

I've gotta say, having city-owned fiber is great, folks here don't have to wait weeks for Comcast to send out a tech who conveniently never shows up on the scheduled day, and customer service actually has a clue what they're talking about. This is how a public service should operate.

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this post was submitted on 05 Jun 2025
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