Anyone using hdmi over single cat6?

Anyone using hdmi over single cat6?

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Andehh

Original Poster:

7,107 posts

205 months

Saturday 18th February 2017
quotequote all
As per the title, trying to set it up but can't get a link across the cat6.

We have it hdmi into Extender, which is plugged into a cat6 link lead, that plugs into a wall socket that runs approx 15m to the network cupboard, where another link lead plugs into the hdmi extended box there.

All cable at quality cat6, used a cable tester to validate the cables and I can wire my laptop to the router successfully.

I just can't get the hdmi over cat6 to pass a signal across. Using a single cat6 plugged into each works, so it isn't a failure within the Extender boxes.

The cat6 cable routes through the house, but do pass near a few power cables... But nothing dramatic /excessive.

Is the hdmi signal particularly weak? Is it sensitive enough that a few faceplates and/or power cable could disrupt it?


Edited by Andehh on Saturday 18th February 18:27

Fore Left

1,411 posts

181 months

Saturday 18th February 2017
quotequote all
The quality of HDMI extenders can vary greatly. What make and model are they?

Some have a gain control which can be adjusted to boost the signal but at the expense of quality.

tribbles

3,970 posts

221 months

Saturday 18th February 2017
quotequote all
I've used a couple of HDMI<>single Cat5e+ converters; one was good quality, but had problems when something suddenly drew current from the mains (welding really stopped it working) - this one had a gain control, but eventually died.

The second one recodes it (rather than translates it), so it's a bit blurry (mainly with gradiated colours), and the audio is slightly laggy. However, it's still working, and doesn't suffer from mains spikes.

I think I'm running over a 15m cat5e cable, and it does zig zag around mains cables.

What converters are you using?

Salesy

850 posts

128 months

Saturday 18th February 2017
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I have a set of generic HDMI extenders with IR blasters. The run is approx 12M allowing for slack.

Source is split into TV then out over Cat 6. Never had a problem. I have also put these in a customers house with a run of approx 20m and never had a problem. Well except for when the Sky so called engineer changed a box over and didn't put it back together properly.

Andehh

Original Poster:

7,107 posts

205 months

Saturday 18th February 2017
quotequote all
It's a cheap one, under the 'synic' brand. I have ordered the more expensive "Neet" one to try to tomorrow.


I also found that the unbranded "CAT6 link lead" cables are likely to be cat5. Linking the two of boxes together with one of these link leads stops the "link" light flashing, but no picture comes through.

Even testing with a good quality cat5e cable has some pictures being shown(showing it is better quality then th 'CAT6') , though the picture is badly broken. Hoping tomorrow to go to maplins to buy a crimp tool (left mine at home) to build my own known quality cat6 to try, and then try again with the neet branded extenders.

Edit: how much interference is a couple of faceplate couplings likely to create?

Edited by Andehh on Saturday 18th February 19:34

tribbles

3,970 posts

221 months

Saturday 18th February 2017
quotequote all
Just checked - the first one I bought was a Cablesson HDElity HDMI 3D Extender Single Cat5/6, and the second one is an Ex-Pro 120m AV-Pro Extender HDMI.

When I move to a new house, I'll make sure I can either put dual Cat6 through, or even a full HDMI cable.

I'm not familiar with your one, though (isn't it Esynic?)

Andehh

Original Poster:

7,107 posts

205 months

Saturday 18th February 2017
quotequote all
Sorry yes it is esynic!

Having already proved the 2 link leads are less then cat5e quality though, I hope to replace them tomorrow as my first attempt to improve the situation.

I have a few metres spare of professional grade cat6 (matching the stuff throughout the house) which I'll make up and try.

it is ESYNIC HDMI Extender 1080P 60m HDMI Extenders HDMI Repeater Over Single Cat 6 Cat 7 Ethernet Cables With IR Function https://www.amazon.co.uk/dp/B00YC3BWL2/ref=cm_sw_r...

megaphone

10,694 posts

250 months

Saturday 18th February 2017
quotequote all
I've had issues in the past going through faceplates and patch bays, remember this is not IP, many extenders use 'generic' technology.

I always wire a direct cable and crimp the ends, avoiding any joins. HDbaseT technology is a lot more forgiving.

Andehh

Original Poster:

7,107 posts

205 months

Sunday 19th February 2017
quotequote all
Damn crimp tool from maplins was a piece of st and I couldn't crimp the ends onto cat6 spec rj45. Means I can't default to a single cable between Extenders.

Replaced the sockets with cat6 spec ones, and used genuine cat6 certified cables from maplins, but still couldn't get a damn link between the hdmi Extenders.

Now ran out of ideas, hopefully the neet Extender will arrive later and I can try that!


Wishing I'd just ran bloody hdmi cables everywhere now! Luckily I did in the lounge at least.

Andehh

Original Poster:

7,107 posts

205 months

Sunday 19th February 2017
quotequote all
Yep, the neet box did the trick! biggrinbiggrin

On standard settings no signal got through, but flipping one of the signal boost (?) switches brought it all too life. There are a further two switches which I imagine boost it even more of required!

Thanks for the posts guys!

VEX

5,256 posts

245 months

Monday 20th February 2017
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The little switches are unlikely to be boosters, they will adjust the EDID and HDCP settings of the hardware.

Usually you use them to force the screen and player to operate at a fixed standard rather than letting them to try to negotiate the settings themselves. Remember how fax machines used to chirp to each other to make sure they talked the same language, the same thing happens with EDID and HDCP to ensure they are compatible.

With newer HDBT based systems we have never had problems with patch panels and faceplates, it was only the earlier generic (none HDBT) ones that could have issues.

V.


CQR-View

1 posts

74 months

Wednesday 10th January 2018
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Andehh said:
As per the title, trying to set it up but can't get a link across the cat6.

We have it hdmi into Extender, which is plugged into a cat6 link lead, that plugs into a wall socket that runs approx 15m to the network cupboard, where another link lead plugs into the hdmi extended box there.

All cable at quality cat6, used a cable tester to validate the cables and I can wire my laptop to the router successfully.

I just can't get the hdmi over cat6 to pass a signal across. Using a single cat6 plugged into each works, so it isn't a failure within the Extender boxes.

The cat6 cable routes through the house, but do pass near a few power cables... But nothing dramatic /excessive.

Is the hdmi signal particularly weak? Is it sensitive enough that a few faceplates and/or power cable could disrupt it?


Edited by Andehh on Saturday 18th February 18:27
Hi Andehh
As it has been a year since your question was posted, you may have solved the issue .................... reading through your post, in particular

"The cat6 cable routes through the house, but do pass near a few power cables... But nothing dramatic /excessive."

Would i be correct in assuming you are connecting to existing Cat6 cable which is part of your home network? if so, for using HDMI over Cat6 you're connection must be a direct link, thus meaning "separate from your network" or it will not work. Some HDMI adapters will resort to a network mode if it detects this type of activity. Do not connect to network switches etc, that you would use for home networking, computers etc ....... To transmit HDMI signal (Video/Audio) requires a direct link between the source and receiving devices "only".

I hope this helps

Andehh

Original Poster:

7,107 posts

205 months

Wednesday 10th January 2018
quotequote all
Thanks for the post, yes all cat6 in these cases are a direct link. Should I change them over to network up a TV for Internet etc, I'd use a link lead to go into the router/switch instead of hdmi source smile

audi321

5,156 posts

212 months

Tuesday 12th June 2018
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Sorry to drag up an old thread, but has anyone used something like these? Seems an incredibily cheap option if they work. Although there's still the issue of IR control to sort out.

https://www.ebay.co.uk/itm/HDMI-Over-RJ45-CAT6-CAT...

Andehh

Original Poster:

7,107 posts

205 months

Tuesday 12th June 2018
quotequote all

audi321

5,156 posts

212 months

Tuesday 12th June 2018
quotequote all
Cheers, I note these won't work with Powerline adapters, but watching this video (at 25:26) he does get these ones working fine? Are these any different to those you linked?

https://www.youtube.com/watch?v=XFhx8Zy95IY

Andehh

Original Poster:

7,107 posts

205 months

Tuesday 12th June 2018
quotequote all
Having skipped through the video, it looks like it'd be ok? I have not tried it over powerline myself.

I figure it is worth a punt either way!