How long can I extend my HDMI cable with extension Adaptors?

[Jash Jacob]

I have a huge distance of 140 meters to cable from my basement to the top floor with having to connect to a HDMI display in every floor for a security camera. The camera provides a HDMI output and I had 3 spare HDMI monitors to hook it up with.

 

I want to know if it'll be possible to use extension(amplifier) adapters every 20 meters for the entire length along with 1 x 2 HDMI splitters where I'm putting up the HDMI display.

 

I'm adding an image for further reference to make myself clear. I just need to know if this setup will work before I can invest money to buy the splitters(amplifier) and adapters.

 

[themctipers]

probably not possible.

[Jash Jacob]

Just now, themctipers said:

probably not possible.

Signal will drop out? Any other ideas? Wireless or something or that sort?

[themctipers]

Just now, Jash Jacob said:

Signal will drop out? Any other ideas? Wireless or something or that sort?

camera -> pc (capture card) -> software that displays said input -> use some sort of monitoring program (teamviewer)? -> other LCD screens

you can run teamviewer on a pentium d so...

 

im going to assume that the signal is going to drop out because its so long.

[thomasths27]

hmm do these AMPs need an external power source ? Could be a pain if they do.

And 140m with hdmi that sounds like, a project

[ShadowCaptain]

2 minutes ago, Jash Jacob said:

Signal will drop out? Any other ideas? Wireless or something or that sort?

HDMI over cat6 is normally good for about 150ft so might need a repeater

 

HDMI over copper for fibre is your best bet!!

[Jash Jacob]

Just now, thomasths27 said:

hmm do these AMPs need an external power source ? Could be a pain if they do.

And 140m with hdmi that sounds like, a project

The ones i found on local amazon doesn't require powersource. Wonder if that's okay?

 

But the 1x2 splitter has powersource so will it have some sort of boost?

[Jash Jacob]

Just now, ShadowCaptain said:

HDMI over cat6 is normally good for about 150ft

How many times can I do this conversion ?

[ShadowCaptain]

1 minute ago, Jash Jacob said:

How many times can I do this conversion ?

Not 100% sure

 

if you need further, look into HDMI over copper or even HDMI over fibre!!!

 

I think you are approaching this wrong

 

Get a camera set up, connected to a nearby PC, use remote desktop to monitor the cameras+

[paddy-stone]

I was thinking along the same lines as @themctipers. I'm not hugely familiar with this sort of thing, but think it's more possible to have just output to one computer/raspberry pi or something and then just remote connect to view from other locations using another raspberry pi or soemthing small and affordable at those locations.

[thomasths27]

2 minutes ago, Jash Jacob said:

Signal will drop out? Any other ideas? Wireless or something or that sort?

Get a little raspberry pie with hdmi. connect it with your home Network. (If u have W-lan outside even better)

Set it up to stream into your network.

Get a small pc ( or a raspberry pie) for all, or two monitors close to each other and view the stream with vlc or some other viewer.

 

 

[Jash Jacob]

3 minutes ago, paddy-stone said:

I was thinking along the same lines as @themctipers. I'm not hugely familiar with this sort of thing, but think it's more possible to have just output to one computer/raspberry pi or something and then just remote connect to view from other locations using another raspberry pi or soemthing small and affordable at those locations.

I don't want to go wireless because of thickwalls in my building..

[thomasths27]

5 minutes ago, Jash Jacob said:

The ones i found on local amazon doesn't require powersource. Wonder if that's okay?

 

But the 1x2 splitter has powersource so will it have some sort of boost?

Probably

[You_are_a_cunt]

12M (40ft) is about the maximum length at which the signal is still reliable.

[Jash Jacob]

2 minutes ago, thomasths27 said:

Get a little raspberry pie with hdmi. connect it with your home Network. (If u have W-lan outside even better)

Set it up to stream into your network.

Get a small pc ( or a raspberry pie) for all, or two monitors close to each other and view the stream with vlc or some other viewer.

 

 

 

I need it to work without any setup even if the power fails. I shouldn't have to restart and setup anything of that sorts. Power cuts are common where I'm from 

[Syntaxvgm]

The problem with extension via adapters is it relies on the outgoing signal strength (believe it or not some devices are weaker than others) and the quality of the cabling. I have a good 50 foot cable that goes through a brush plate in my office to the other side of my living room to my tv. I used to have an additional 10FT on top of that with no problem, and I tested an extra 25. Though, I would not go over 75 foot myself. If HDMI over Ethernet is not appealing, here's an idea- get good 50 foot cables (they're not bad priced, look for amazon reviews ) and put splitters in between the 50 foot sections of cable as range boosters- there cheap and do the same thing. 

Here's a good splitter I use https://www.amazon.com/gp/product/B008D66RAU/ (bonus- it strips HDCP)

Youll notice that hdmi cables you see that are 75 foot and above with good reviews have a "signal booster" in the middle, which is basically a repeater that works about the same way as the splitter but unpowered (using splitters is better for this reason, most hdmi repeaters are unpowered, and are often rated only for ~ 100ft). The latency is negligible, and thankfully for security cameras that doesn't matter very much. If this were a computer you were hooking up, you'd have to worry about  USB or a solution for it, my 50ft cable has 2 range extenders in it (same chips as usb hubs) and a powered usb hub on the end to give full device power. 

 

EDIT- changed link to right product 

[thomasths27]

11 minutes ago, Jash Jacob said:

 

I need it to work without any setup even if the power fails. I shouldn't have to restart and setup anything of that sorts. Power cuts are common where I'm from 

I don't want to give wrong info especially if there is much what can go wrong. But maybe get an HDMI to lan/(cad5/6)  converter/streamer/extender. Lan/(cad5/6) can often go 150m without a AMP. But i dont really know how they work.

[Mk7-Golf-R]

It may be too late if you already have the camera. But if not maybe you could go with a different type connection.

 

i don't think hdmi is meant to work like your diagram. If coax cable is an option, that may work. I have ran a coax cable over 200ft to a HD directv box without signal loss.

 

150ft was the recommend max distance, but 200 worked without an amp.

[Jash Jacob]

9 minutes ago, Syntaxvgm said:

The problem with extension via adapters is it relies on the outgoing signal strength (believe it or not some devices are weaker than others) and the quality of the cabling. I have a good 50 foot cable that goes through a brush plate in my office to the other side of my living room to my tv. I used to have an additional 10FT on top of that with no problem, and I tested an extra 25. Though, I would not go over 75 foot myself. If HDMI over Ethernet is not appealing, here's an idea- get good 50 foot cables (there's not bad priced, look for amazon reviews ) and put splitters in between the 50 foot sections of cable as range boosters- there cheap and do the same thing. 

Here's a good splitter I use https://www.amazon.com/gp/product/B00JQP6PTK (bonus- it strips HDCP)

Youll notice that hdmi cables you see that are 75 foot and above with good reviews have a "signal booster" in the middle, which is basically a repeater but unpowered. The latency is negligible, and thankfully for security cameras that doesn't matter very much. If this were a computer you were hooking up, you'd have to worry about  USB or a solution for it, my 50ft cable has 2 range extenders in it (same chips as usb hubs) and a powered usb hub on the end to give full device power. 

Thank you! This is very informative. I don't mind the latency at all.

[Syntaxvgm]

1 minute ago, Jash Jacob said:

Thank you! This is very informative. I don't mind the latency at all.

heads up I changed the link, I linked to a switch instead of a splitter. 

[Jash Jacob]

2 minutes ago, Mk7-Golf-R said:

It may be too late if you already have the camera. But if not maybe you could go with a different type connection.

 

i don't think hdmi is meant to work like your diagram. If coax cable is an option, that may work. I have ran a coax cable over 200ft to a HD directv box without signal loss.

 

150ft was the recommend max distance, but 200 worked without an amp.

Coax can do 1080p?

[Jash Jacob]

1 minute ago, Syntaxvgm said:

heads up I changed the link, I linked to a switch instead of a splitter. 

Noted.

[Mk7-Golf-R]

Just now, Jash Jacob said:

Coax can do 1080p?

It can, my cable box played in 1080i easily. But it may be different when using it for a security camera. 

 

I was just thinking for reliability, maybe coax or Ethernet.  It seems like a lot of potential failure points with several hdmi amps and splitters.