There come situations, we cannot have the source of the video and audio signal (a computer, gaming console, etc…) close to the monitor, TV or projector. Of course, we can use longer HDMI cable but there are limitations in length which is around 50 feet (15 meters) for the 1080p signal, 4K even less. Often the distance between computer or TV is much larger and here comes the HDMI extender into play.
My task was to set up a system for a projection mapping on the main stage of some festival in my home town. I had to link a computer locating in Front-of-House (FoH) with the projector on a ramp in front of the stage. Like 80 meters apart from each other.
So I thought maybe some of you may have a similar task and in order to spare you some time researching the market online, I compiled this list of HDMI extenders.
But only those, capable of transmitting true 4K resolution with full 60 Hz with 4:4:4 color coding (HDR).
These types of extenders are usually a bit pricier, but for me, it is not worth sacrificing the video quality over a coin.
Which is the best HDMI extender for 4K uncompressed video?
For the true uncompressed 4K resolution the extenders must be capable of transmitting the signal with a throughput of 18 Gbit/s.
This is the most important spec, so let’s see what’s on the market at the moment.
Last update on 2020-01-17.
1. AV Access HDMI 2.0 Extender – 4KEX70-H2
This HDMI extender comes in a robust aluminum casing. For the audio and video transmission, it uses HDBaseT technology. This means the audio/video signal is totally uncompressed therefore there is no quality loss. It supports 4K at 60Hz, fully compatible with 3D and HDR content.
It also has a Bi-directional Infra Red (IR) and pass-through so you can use the remote control from a great distance pointing directly towards a transmitter unit.
Another useful feature is that it supports PoE (Power over Ethernet). It means you need to plug the power supply adapter only to one unit. The other unit gets the required power via ethernet cable.
MAIN FEATURES AND RANGE:
- Supports HDMI 2.0 with [email protected] 4:4:4 8bit and HDCP 2.2
- Supports HDR (High Dynamic Range) format
- Over a Cat 6a/7 cable, HDMI signal transport up to 230ft (70m) at 1080P and 131ft (40m) at [email protected] (4:4:4)
- Over a Cat 5e/6 cable, HDMI signal transport up to 197ft (60m) at 1080P and 115ft (35m) at [email protected] (4:4:4)
- Bi-directional PoE: one power supply at either transmitter or receiver side can power both units
- Bi-directional IR/RS232 pass through
2. J-Tech Digital HDMI 2.0 Extender – JTECH-EX-HDBT381
The specs of this unit are quite the same as with the previous AV ACCESS extender. With a throughput of 18 Gbit/s, it supports HDR and 3D content. It also has the support of a bi-directional IR signal for remote control. The transport range is around the same.
This unit is also powered via PoE (one unit is connected to the adapter, the other one gets power via ethernet cable).
Another useful feature this extender has is a local loop out on the Transmitter. It allows a secondary display to be hooked up at the source, as well as double output on the receiver.
Last update on 2020-01-17.
3. No Hassle AV 4K HDbaseT Extender
If you are on a budget and you need a longer transmission range, this unit would do the job. It has all the specs as previous two, but with a range up to 330 feet (100 meters).
All 3 top models on the market do pretty much the same job. They all use the same HDBaseT technology and have a max bandwidth of 18 Gbits/s. So the features and the picture quality are just the same. The only difference is the transmission length.
If you are on a budget and you really need a long range of transmitting the signal, then, by all means, go for the No Hassle AV . In my case, I had no choice but to use this one due to computer and projector being like 80 meters apart. Of course, it worked flawlessly.
But if you don’t need that much of a transmission length, the unit from AV ACCESS would do just fine. And it’s also the cheapest. 🙂
If you recommend any other 4K HDMI extender, feel free to drop a comment below. I would be glad to review it and add it to the list.
Profession: System Administrator, Stage Crew – Technician
Hobbies: Everything IT, Blogging, Music, Caving
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