coax question??

May 21, 2006 at 9:37 PM Thread Starter Post #1 of 5

NiceHat

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i am planning on running 3 rj 6 wires from my upstairs to my basement to use as component wires...i was wondering if i could use
These to terminate the wires after the f conectors - http://www.radioshack.com/product/in...entPage=family
This whould make the job alot ezer for me but im not shore how the quality whould be.......if any one has used thes before or know if there good or not plese help me out.

Also could i run component video over cat5 for about 100ft without signifigant loss in quality???

Any help whould be greatly apriciated
 
May 22, 2006 at 2:55 AM Post #2 of 5
Well, those would work okay, but you will lose some signal level with an adapter. Do you have a solder iron? If so, you might want to consider soldering the correct terminations on the end, instead of using an adapter.

I'm not too sure about your other questions. Lots of things to consider: the wire gauge, for instance. If you know what it is, there are several calculators online that can help you figure out what the signal loss would be over 100 feet. I'm not completely sure, but I think 100 feet is quite a long distance for even cat5, especially when you are sending a fragile, wideband video signal over it. Significant loss of quality will be a realative term, in this case. Would it be watchable? That's for you to determine! Maybe before you tear the house apart trying to accomplish this, you would get a good idea of how it would work by just running the wires down the stairs, connecting them to the source and checking the picture first.

One other thing, this may also be determined by the output voltage of your DVD as well.

Finally, if it doesn't work all that well, you might consider just sending a composite signal instead.

Good luck, and welcome!
 
May 22, 2006 at 3:14 AM Post #3 of 5
It'd help if you gave more specifics on what you're using this for, but assuming something like a DVD player..

For 100 feet, you should be just fine with RG6 and F-to-RCA adapters. Just be advised that those are going to be some chunky connectors after you factor in the stiffness of RG6, then the F connector, then the adapter. I really wouldn't worry about using baluns to send it over cat-5, it'd shoot up your cost for no reason other than to use less wire. You'll also need to factor in wires for audio if you haven't already.
 
May 22, 2006 at 5:51 PM Post #4 of 5
Thanks for all your help..ithink i wiill be using the f adapters and i have alredy taken care of the audio..(cut an rca wire and atached ether end to a cat5 i had alredy ran.....works great.)
 
May 23, 2006 at 1:16 AM Post #5 of 5
The most important thing is the grounding of both ends. I'm not sure if running it though an adapter won't produce some nasty standing waves which could effect the signal, but I remember there was some reason why in broadcasting they only ever use crimp on bnc connectors and never solder connectors.

We experimented with running a VGA signal over cat5. It worked quite well for about 15m, but for the highdef projector it was used for this was insufficient. In the end we used cat5 anyway, but Shielded twisted pair, with STP RJ45 conenctors on either end, and a video amplifier on both sides (these cost about $50US). The results were perfect.
 

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