HDMI extender questions

[Muttley]

Hi guys,

I'm now on my third set of HDMI extenders (due to lighting strikes).
I've tried the il cheapo brands which were just terrible and now know that the Lenkeng ones work well.

I don't want to go ahead and spend more money on another pair without some input from others as to what would be best practice to prevent future failures (if possible).

Currently have a CAT6 cable running between my rack and the kitchen - each HDMI unit is independently powered.

Is it worth buying another pair of Lenkeng extenders and putting in an Ethernet Surge Protector such as this?

or would it be better to buy an Optical HDMI extender such as this with a made up fibre cable like this?

The run is about 20/25M

Thanks for the assistance in advance

 

[W@P]

Hi guys,

I'm now on my third set of HDMI extenders (due to lighting strikes).
I've tried the il cheapo brands which were just terrible and now know that the Lenkeng ones work well.

I don't want to go ahead and spend more money on another pair without some input from others as to what would be best practice to prevent future failures (if possible).

Currently have a CAT6 cable running between my rack and the kitchen - each HDMI unit is independently powered.

Is it worth buying another pair of Lenkeng extenders and putting in an Ethernet Surge Protector such as this?

or would it be better to buy an Optical HDMI extender such as this with a made up fibre cable like this?

The run is about 20/25M

Thanks for the assistance in advance

I feel your pain. I also went through about 3 sets. Mostly cause the el-cheapo kak didn't work properly. Now using a Lenkeng. My use case is for the projector in my cinema room. Idiots that built the house ran conduits in the wall but you cannot fit an HDMI cable through them.

If I were to start over I would go with a fibre run.

What are you trying to extend to the kitchen?

 

[Muttley]

I feel your pain. I also went through about 3 sets. Mostly cause the el-cheapo kak didn't work properly. Now using a Lenkeng. My use case is for the projector in my cinema room. Idiots that built the house ran conduits in the wall but you cannot fit an HDMI cable through them.

If I were to start over I would go with a fibre run.

What are you trying to extend to the kitchen?

Thanks for the feedback...

It's a PC monitor for the CCTV...

 

[Stinkbeaver]

Thanks for the feedback...

It's a PC monitor for the CCTV...

There are a lot of different varieties of extenders out here but most don't work as expected ut if you have a steady budget you can get solid HDMI extender from Kramer that are used in the commercial space and they will outlast you, they maybe a bit expensive but are worth it and they will be able to handle your CCTV bandwidth needs.

 

[Muttley]

There are a lot of different varieties of extenders out here but most don't work as expected ut if you have a steady budget you can get solid HDMI extender from Kramer that are used in the commercial space and they will outlast you, they maybe a bit expensive but are worth it and they will be able to handle your CCTV bandwidth needs.View attachment 1719801

Thanks - the Lenkeng units seem to be really good and reliable but will check these out.
It's more the lightning issue that I'm trying to prevent...

 

[yogidabear]

If you have a UPS in the rack, you can power the remote unit from the sender. That would eliminate the remote PSU, if thats your problem. Unfortunately I dont know the brand, and maybe Lenkeng makes one like this

HDMI Extender (50m) with Remote Power (HDM-EX050IR)

HDMI Extender (50m) with Remote PowerThe 50m HDMI Extender kit is an ideal device for displaying your media on a monitor further away or in a remote location. A key feature of this kit is that you only require one power supply - Plug the PSU into the Sender unit, and power the Receiver from the...

shop.dbg.co.za

 

[soulie]

Thanks - the Lenkeng units seem to be really good and reliable but will check these out.
It's more the lightning issue that I'm trying to prevent...

common complaint ,i think its the static discharge that cooks them ,ive now wrapped mine in foil and have earthed them ,so far so good ,was blowing one regularly , my run is 40 meters from lounge to bedroom through the roof space .

 

[UB40]

@AlphaJohn @TheChamp @leon.davibe

 

[chrisc]

Fitted an optical HDMI of 130m on a farm in Stellenbosch in 2016. It works fine and has never failed. I had a 25mm conduit to use

It is made by Baobab and cost R4000, but is much cheaper today

 

[Muttley]

If you have a UPS in the rack, you can power the remote unit from the sender. That would eliminate the remote PSU, if thats your problem. Unfortunately I dont know the brand, and maybe Lenkeng makes one like this

HDMI Extender (50m) with Remote Power (HDM-EX050IR)

HDMI Extender (50m) with Remote PowerThe 50m HDMI Extender kit is an ideal device for displaying your media on a monitor further away or in a remote location. A key feature of this kit is that you only require one power supply - Plug the PSU into the Sender unit, and power the Receiver from the...

shop.dbg.co.za

Thanks
I've used those D Tech previously.... they were ok but the Lenkengs deff seem to be much more reliable and stable.

 

[Muttley]

Fitted an optical HDMI of 130m on a farm in Stellenbosch in 2016. It works fine and has never failed. I had a 25mm conduit to use

It is made by Baobab and cost R4000, but is much cheaper today

View attachment 1719917

Thanks - was thinking about going this route - may need to add in larger conduit for the small outside section which is no biggie.

Glad to know this would work over the distance!

 

[yogidabear]

Thanks - was thinking about going this route - may need to add in larger conduit for the small outside section which is no biggie.

Glad to know this would work over the distance!

Outside section. Now I understand, and its not the PSU that is blowing the converters.

So you have Ethernet running underground in PVC conduit, not earthed anywhere? Shielded cable, or normal?

 

[Muttley]

Outside section. Now I understand, and its not the PSU that is blowing the converters.

So you have Ethernet running underground in PVC conduit, not earthed anywhere? Shielded cable, or normal?

It runs in conduit over a small flat roof section (maybe 2m) into the kitchen roof space.
Non shielded CAT6

 

[leon.davibe]

does it share space/trunking with any power cables?

I would think the fibre optic would be the best to go for as there can be no induction from AC wires

But don't know too much about hdmi standards assume the signal is essentially a DC signal

AC and DC should not share same trunk space

My opinion if lightning was to blame it would fry everything connected not just the hdmi extender

If sharing trunking definitely go shielded cable

 

[Muttley]

does it share space/trunking with any power cables?

I would think the fibre optic would be the best to go for as there can be no induction from AC wires

But don't know too much about hdmi standards assume the signal is essentially a DC signal

AC and DC should not share same trunk space

My opinion if lightning was to blame it would fry everything connected not just the hdmi extender

If sharing trunking definitely go shielded cable

Thanks - it's only the network cable in the conduit.
Only seems like the HDMi extender was affected - everything else in the rack is good and the monitor that it feeds in the kitchen are all ok.

 

[leon.davibe]

Thanks - it's only the network cable in the conduit.
Only seems like the HDMi extender was affected - everything else in the rack is good and the monitor that it feeds in the kitchen are all ok.

yea i suppose i can be wrong, in a direct hit yes but if not direct hit who knows

the other thing i can think is if the extender is for lets say 40m and you use it for 10 the voltage drop will be less
ie the signal is injected with strength to go 40m if you go less what happens ?
would it pop the device or are they built to tollerate anything from 1m-max device is designed for?

can also just play safe and use a shielded cable

 

[quovadis]

Non shielded CAT6

Here's your clue...

 

[Muttley]

Here's your clue...

But it's BC

So if I had to change it to shielded and add in an ethernet surge protector, I should be golden?

 

[quovadis]

But it's BC

So if I had to change it to shielded and add in an ethernet surge protector, I should be golden?

It would certainly help. Also make sure you’re not exceeding max length for whatever hdmi extender you’re using. Ohms law and all that.

 

[Muttley]

It would certainly help. Also make sure you’re not exceeding max length for whatever hdmi extender you’re using. Ohms law and all that.

Thanks,
Replacement extender will either be a 40 or 50M unit (depending on stock) and actual length is prob a few meters short of 30 so in that regard, I'm good.