RJ45 for Coaxial signal transmission

b4u

Golden Member
Nov 8, 2002
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2
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Hi,

I'm planning on removing all coaxial cables and wall plugs from my house, and install RJ45 plugs with UTP/FTP cable, so I end up with a network structure inside my walls, to all rooms in house.

I have my TV's receiving cable signal from coaxial cabling ... and as I'm planning to change all coaxial from house, the coaxial cable of my TV will have nowhere to connect to.

So my question: can I use the UTP/FTP cable to transmit coaxial (TV) signal?

The coaxial cable has a copper wire and a copper mesh (here, so at the source, I would connect each of the coaxial wires (wire and mesh) to different UTP/FTP cable wires (they have 8 wires, I would use only 2), and at the other end (near the TV), I would reconnect from the wall, with an RJ45 connector, back to a coaxial cable that plugs in my TV.

Will it work? Will it burn my house?

Or are there UTP/FTP to coaxial converters around?

Thanks
 

Colt45

Lifer
Apr 18, 2001
19,720
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Won't work, as catv isn't differential, which is what twisted pair benefits. So you'll end up having a single ended setup with no shielding, not to mention the impedance is wrong.. so you'll have tons of noise and reflections.

You're stuck with coax ;)
 

b4u

Golden Member
Nov 8, 2002
1,380
2
81
Is there any converter around? That could do proper signal conversion? Something I can plug at both UTP/FTP cable endings?
 

Crusty

Lifer
Sep 30, 2001
12,684
2
81
Why can't you leave the existing coax in place while you drop your CAT6?
 

Blain

Lifer
Oct 9, 1999
23,643
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Originally posted by: Crusty
Why can't you leave the existing coax in place while you drop your CAT6?
Yes, I would think you'd want as much connectivity as possible.

 

b4u

Golden Member
Nov 8, 2002
1,380
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The reason I don't want to leave coax in that place is simple: in the near future, I will change my tv+internet provider for another one, with optical fibre, and that service will make the connections inside my house through UTP cabling ... so I'm planning ahead and prepare all infrastructure, at the same time I provide full network through my entire house.

I just want to go though that cabling passing one time, so it would be great to use a converter to use UTP as a signal transmitter. That way, once I change to the new provider, I would just drop the converters and bang! Everyone is happy :D

Also I have 2 televisions, and to leave those 2 coax connections in place would mean I would have to change them latter.

I found this IC442A-R2 converter which seems to be able to convert 3 coax signals through a single UTP cabling.

Whould it be good? Any other brands around? I'm looking for some quality product, and only need 1 coax signal converter.

Thanks
 

Crusty

Lifer
Sep 30, 2001
12,684
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81
Why would you have to change them? If you don't want them on the wall plate just take out the keystone jack and stuff it into the hole. With a single gang wall box you can fit 1-6 keystone jacks, I see no reason to have to remove cabling or to only run one kind of cable. If you really want to futureproof you should be running CAT6, coax and fiber to each wall plate. What if you change ISP's in a few months again because the new one has issues and you have to re-wire for coax?
 

Colt45

Lifer
Apr 18, 2001
19,720
1
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Originally posted by: b4u
The reason I don't want to leave coax in that place is simple: in the near future, I will change my tv+internet provider for another one, with optical fibre, and that service will make the connections inside my house through UTP cabling ... so I'm planning ahead and prepare all infrastructure, at the same time I provide full network through my entire house.


I just want to go though that cabling passing one time, so it would be great to use a converter to use UTP as a signal transmitter. That way, once I change to the new provider, I would just drop the converters and bang! Everyone is happy :D

Also I have 2 televisions, and to leave those 2 coax connections in place would mean I would have to change them latter.

I found this IC442A-R2 converter which seems to be able to convert 3 coax signals through a single UTP cabling.

Whould it be good? Any other brands around? I'm looking for some quality product, and only need 1 coax signal converter.

Thanks

That unit is only good for baseband (i.e. one channel, already downconverted). It's not capable of the whole ~50-850MHz range that is cable TV. TV is bloody wideband, there's no way of doing it but cable. (or, in your future implementation, a couple digital channels at a time over twisted pair)
 

mpilchfamily

Diamond Member
Jun 11, 2007
3,559
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From what i understand a fiberoptic cable is brought to your house to a Converter box then the signal travels threw your exhisting Coax cable to reach your TV. I know Verson's Fios works like that. The Fiber goes to a main modem where the signal is divided to the phone, internet, and TV signal. Each being patched into the exhisting wireing in the house.
 

b4u

Golden Member
Nov 8, 2002
1,380
2
81
Originally posted by: Crusty
Why would you have to change them? If you don't want them on the wall plate just take out the keystone jack and stuff it into the hole. With a single gang wall box you can fit 1-6 keystone jacks, I see no reason to have to remove cabling or to only run one kind of cable. If you really want to futureproof you should be running CAT6, coax and fiber to each wall plate. What if you change ISP's in a few months again because the new one has issues and you have to re-wire for coax?

That is one of my concerns ... if I want to change to another service that requires coax ... I'm stuck with changing the damn thing again.

At this time, I have a coax running INTO my house, into a wall box that has a 8-way coax splitter (only 7 are used). Each splitted signal is sent through an individual tube (a pvc tube inside the wall) to its destination wall plugs. So one tube with one coax to each wall plug, it would be nice if I could ALSO fit a cat5e cable side-by-side with each coax, and then change the coax wall plugs for coax+rj45 wall plugs ... but I don't know if both cables fit the tubes.


Originally posted by: mpilchfamily
From what i understand a fiberoptic cable is brought to your house to a Converter box then the signal travels threw your exhisting Coax cable to reach your TV. I know Verson's Fios works like that. The Fiber goes to a main modem where the signal is divided to the phone, internet, and TV signal. Each being patched into the exhisting wireing in the house.

I will receive a fiber cable INTO my house, that will connect to a decoder box. From that box, one cable (with RJ45 connectors, I believe) will provide the decoded signal to an ONT (I have info that some users received the CIG G-25E. Then 4 ports come out of it ... 2 for video, and another 2 for data, and so everything will be connected through UTP/FTP cabling.