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-   -   Cat6 as HDMI? (http://www.avrev.com/forum/cables/1362-cat6-hdmi.html)

TheMoose 12-31-2007 03:15 PM

Cat6 as HDMI?
 
I'm in the very early planning stages of adding a dedicated home theater to my house.
I was reading Widescreen Review series on HDMI 1.3 cables & they mentioned something about using cat 6 wiring as a HD cable.

Can someone explain how this works & if it has the bandwidth for 1080p over a long (say 20 meter) distance?

Depending on how I set up my room I may have 2-15 meter HDMI runs or a 5 meter & a 20 meter run (1 to a projector & 1 to a TV) & want to do it right the first time.

I don't mind spending $300 for a HDMI cable from a company like Kimber or Monster that will be foolproof since it will be in the walls but if the Cat 6 works just as good for less that why waste $$?

JerryDelColliano 12-31-2007 03:19 PM

Re: Cat6 as HDMI?
 
I know the Accell and Ultralink cables run easily that long.

For VERY long runs look to a fiber optic cable like Dtrovision. That is what I use and it can do 1080p over long runs with ease. Its a lot more money than $300 for a long cable however. The Ultralink and Accell are closer to $300

rex 04-18-2008 10:35 AM

Geffen cat5 extender, Honeywell cat5 converter
 
For several years Geffen has had a HDMI cat5 extender: http://www.gefen.com/kvm/product.jsp?prod_id=3872

More recently Honeywell came out with their improved HDMI cat5 "converter": http://www.cepro.com/article/honeywe...When:16:31:00Z

seanthebrit 04-19-2008 01:05 PM

Re: Cat6 as HDMI?
 
Caution.

If you want to pass a 1080P signal [twice the bandwidth of 1080i] over CAT5, the losses in bandwidth may make this unworkable, especially over 50foot; thus CAT6 is reliable for HDMI runs around 100 feet. However, if this in done in a commercial environment, or the cables pass by high power A/C units, the twisted-pair shielding is not enough; there is CAT6 shielded cable made for this. The baluns are not cheap at $1000/pair [Muxlabs] but they are bullet proof. This is from hands-on experience I have encountered, working with Custom Install for a large AV retailer.

For the home, a pre-made Audioquest/Monster/etc cable of 40' plus will be ultra-reliable.

As is always true in A/V, you get what you pay for.

jptronics2 04-19-2008 09:09 PM

Re: Cat6 as HDMI?
 
You can run dual runs of CAT5 or CAT6, but will need to use CAT transmitters and receivers.
Extron and Geffen both have units that work perfectly.

wes 04-20-2008 10:45 AM

Re: Cat6 as HDMI? Better optic fiber
 
Check this out, optical wave division multiplexing (WDM) scheme to transmit uncompressed video/audio and other data over a single transparent fiber.

http://www.owlink.com/dll.htm this is using optic fiber and has no length limits


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