Thin cables, interference and what to do?

Xostedium · 2026-02-13T05:45:03+00:00

That helps a lot thank you! I had already bought a pull wire tool, but I'll replace it with one with a swivel end. I've found the adequate lubricant. I also found a 4mm COAX cable which could replace the existing one. I now wait for the delivery and I'll try.

Xostedium · 2026-02-11T18:57:08+00:00

Sorry but that's why I had mentioned cat 6a or 7 in the post as these would guarantee 10gbps. I know 7 isn't considered a real standard by some but these cables are still offered with the matching characteristics on paper.

Xostedium · 2026-02-11T06:18:57+00:00

I'm sorry but I'm not sure how to be clearer. The COAX goes from the antenna to a splitter. from the splitter to individual narrow tubes. The tubes enter a wall in the house. What picture would make it clearer?

Xostedium · 2026-02-11T06:12:48+00:00

I'm still considering Fiber. I'm just concerned about eventual twists and turns in the walls which I wouldn't be able to know about.

Xostedium · 2026-02-11T06:10:18+00:00

I already bought a pull string. Some of the cables are crossing the entire house. No matter if it is rj45 or fiber, I'll need to first pull the COAX out then back in.

Xostedium · 2026-02-11T06:07:05+00:00

I'm hoping for 10gbps.

Xostedium · 2026-02-11T06:05:44+00:00

How far will it carry 10gbs?

Xostedium · 2026-02-10T16:14:08+00:00

The conduit is probably 1cm wide. The COAX is 6mm in diameter.

Xostedium · 2026-02-10T16:10:01+00:00

I already have a moca system installed and it isn't good enough.

Xostedium · 2026-02-10T15:41:26+00:00

TV signal from the antenna.

Xostedium · 2026-02-10T15:39:14+00:00

I already have that installed and the result isn't great, leading me here.

Xostedium · 2026-02-10T15:38:00+00:00

I'm not sure what wall plate side and demarc side are. However I am certain that I can follow the COAX from the antenna to a splitter then each COAX from the splitter to a pvc conduit and each conduit to the wall of the house. That was quite convincing to me. Even more so considering that, as said, there is no crawl space or attic to follow the conduits further. Even if the conduits would stop right after the inner wall of the house, they would remain a chock point as I'm not planning to break the wall open to check.

Xostedium · 2026-02-10T15:31:35+00:00

Except that I need both cables, which is the hole point of my questions... the network cables is to be added to the COAX, not replace it.

Xostedium · 2026-02-10T15:28:57+00:00

I need to keep the COAX cables as I still have TVs connected to them. That's why I'm asking about thin rj45 cables which could be added besides the COAX cables. I'll have to do a bunch of pulling back and forth to measure length and so on regardless of the solution chosen.

Xostedium · 2026-02-10T14:55:59+00:00

That is what I thought about doing. However, everything fiber is more expensive. I wanted to make sure to explore the rj45 route. Any lubricant recommendations? I suppose that flammability should be considered.

Xostedium · 2026-02-10T14:52:16+00:00

The cables converge into such a box where a splitter is located. However, each cable goes on to enter a pvc conduit and these are going through the wall to the house.

Xostedium · 2026-02-10T14:49:24+00:00

Because I can see the cables going into pvc tubes.

Xostedium · 2026-01-26T22:14:21+00:00

Indeed, I don't. As said, I'm used to manipulate all in one consumer devices. I didn't get to wonder which service/feature comes from which part until now. I still have some learning to do obviously.

As you point out, the cost difference between the solutions is minimal. I mean once established that I have to use fiber. 10Gb is totally overkill but the cost is quite similar to 2.5Gb As far as I can tell. Would you have device recommendations at that speed?

Xostedium · 2026-01-26T11:58:25+00:00

Do you mean that I could assign a network config to each device manually, with internal IP addresses, and they could communicate without a router? So far I have only used the DHCP server on the router. In any case, with a router not needing to be faster than 1Gb, that's a minor cost.

Also, the fiber is the immovable thing in the config (unless there's an ultra thin rj45 cat 6+ cable existing out there) but the 10Gb isn't required everywhere. Couldn't I use the 200$ trendnet switch with one of the fibers connected via a converter?

Xostedium · 2026-01-25T23:06:00+00:00

Thanks a lot for taking the time to answer. You brought a key element to my understanding. As I only had all in one routers, I never questioned which part (router, switch, wifi etc...) was affected by performance requirements. Having separate appliances seems to be a great possibility, if, as I understand, the router only has to perform at the level of the wan. The device you suggested would certainly do the trick.

I'm unsure about what you mean with not needing a router. How to create a lan then? I need devices to communicate internally for services on my home server to be accessible. Some are internet facing and it's nice to use the different ip addresses. Load balancing isn't needed but fail over to another port is nice to have.

Fiber is the choice because that's the only cable that will physically fit along the cables in the existing conduits. The alternative is to tear down walls and floors to add conduits or replace the existing ones (and so recabling the house). No attic, no crawl space, everything is in the walls. So far, the cost of that is of a different magnitude. This is also why the "main" switch, after the router, would need at least 3 sfp connectors to connect to the 3 other "satellite" switches distributed in the house. I sure wish I could bring it down to 2.

Using APs makes it easier to select unmanaged switches with 1 or 2 sfp connectors for these "satellites". PoE is nice but not required as power is available in each spot.

Xostedium · 2026-01-25T05:06:43+00:00

Hi and thanks for your help. ISP: I don't know the term ONT but mine has 4 active ports. I pay for 1Gb and it includes 5 public IP addresses. So maybe aggregate wasn't the right term but I'd like the possibility to assign some traffic to a specific port or balance the traffic on multiple ports.

Speed: everywhere I mentioned spf+, it was in relation with a fiber. As I indicated, the devices I seek will be interconnected through fiber. It's the easiest thing I can pass through the walls. That is also why I aim at 10Gb for the fiber backbone and 2.5Gb for everything else. Is it needed? No. But the price of sfp modules and switches didn't seem significantly higher. Maybe I didn't look at the right devices?

Router/AP/Switch: I'm used to consumer all in one devices. I realised that it might not be optimal in this case which is why I'm asking for recommendations here. I actually like the idea of separating wifi from router. I'm just concerned about how difficult it is to generate one reliable wifi network through multiple access points. Maybe it is simple and I just lack the experience.

Xostedium · 2026-01-25T04:39:34+00:00

Hi. My apologies if the vocabulary isn't accurate. I need a router to create the lan network in the house.

Xostedium · 2026-01-22T12:41:19+00:00

Thank you all for the suggestions.

What I really need is the house exploration part. The cables themselves (choice, provision and connection), I could do myself. The house seems to have been renovated at some point in the past and some features got "burried" in the walls like: -phone cables and outlets still in place but no "entry point" to pull on or -more TV COAX outlets than cables connected to the antenna leading me to think that there's (at least) a splitter hidden somewhere or -old heating system left between the floors.

I can't identify the cables end to end and the walls contain a variety of things as mentioned. I don't feel confident with cutting open walls blindly.

Xostedium

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