Generally speaking, the maximum reliable length possible for passive HDMI cables that will have a good signal transmission is 25 feet. If you want a resolution near 4K, then the HDMI cable should be at most 3 meters or 10 feet in order to preserve video quality.
For resolutions near 4K, it's recommended to use an HDMI cable that is no longer than 3 meters (10 feet). After that distance, the signal can start to degrade. For lower resolutions, the reliable distance is much longer, with the most common being 15 meters (50 feet).
Like many audio, video, and data cables, HDMI cords can suffer from signal degradation at longer lengths—50 feet is generally considered the maximum reliable length. And it's rare to see an HDMI cable longer than 25 feet in a store. Even online, cables more than 50 feet long can be hard to find.
The answer: Yes … most likely. As TV manufacturers enhance their products with Ultra HD resolution, it is not surprising that cable manufacturers are producing 4K HDMI cables. However, your standard HDMI cables will likely support 4K just fine.
The maximum length for passive HDMI cables
Whichever one you opt for though, 25ft is about the maximum length you can use without seeing a degradation in signal quality due to attenuation.
In theory, the length of an HDMI cable should not affect the quality of the signal, since it is digital and transmitted in the form of electrical impulses. This means that the signal is virtually insensitive to interference, which can occur when transmitting data over longer distances.
The HDMI cable standard can impact color and resolution, but newer versions are not required for 4K TV.
The “4k HDMI” label is mostly marketing, so it doesn't mean a specific feature that will improve image quality. But if you have any cables past the HDMI 1.4 version, then they will be moving the same 4k image across the cable regardless of any marketing.
HDMI 2.1 is only needed if you want to use HDMI with 4K over 60Hz. This applies to consoles, as on PC you can get the same performance with DisplayPort 1.4, which is readily available.
Yes, two HDMI cables can be connected together using an HDMI repeater. This does not only connect two HDMI wires but also boosts the quality of the data signal coming from the source gadget to the output. HDMI extender coupled with ethernet cables is also a possible way to connect two wires together.
The error “Out of Range” normally means that the resolution being output by the computer is not compatible with the display. Try lowering the resolution to see if that helps resolve the issue. You may need to connect another monitor or restart the computer or source to accomplish this.
HDMI over IP extender
The receiver receives this data signal through its ethernet port and processes it into a video signal that can be displayed on a TV or projector. This allows you to achieve a long-distance transmission with no loss of quality in image or sound.
Since a 4K Ultra HD TV has more pixels than a 1080p Full HD screen, you can sit closer to get fully immersed without recognizing any pixels. Therefore, the perfect viewing distance for 4K UHD TV screens is roughly 1 to 1.5 times the screen size. 40'': The optimal screen distance lies between 3.5 and 5 feet.
So, for example, if you have a 65 inch TV, the viewing distance at which the eye can actually process the details of 4k content is about 4 feet. However, any distance between 4 and about 8.5 feet will be enough to appreciate the difference between 4k and 1080p on a 65 inch TV.
How close to the TV must I sit to appreciate 4K? The short answer is that between 5 and 6 ft. is the ideal viewing distance for a 55” or 65” Sony 4K Ultra HD TV. However, on a 55“, you can now sit as close as 3.6 ft and enjoy a visibly smoother and more detailed picture (e.g you won't see the individual pixels).
The 4k image is smoother and has more detail than the 1080p image. Look closely and you'll see that the edges around objects in the 1080p picture are a bit more blurry, and text looks clearer on the 4k TV.
8k cables have higher speed because of their higher bandwidth of 48Gps, unlike the 4k, which has a bandwidth of 18.2Gps.
There is only an “HDMI cable.” But there are HDMI cables that support 4K, and you can use these on your 1080p TV. HDMI cables are backward compatible, so an HDMI cable with 4K capabilities will transmit 1080p video, which is the resolution of your 1080p TV.
The easiest way to figure out if an HDMI cable is 4K compatible is to check its speed rating or its maximum bandwidth. A cable rated at 18 Gbps maximum bandwidth is fast enough to give you 4K video. If your HDMI cable is labeled “high speed,” it should be able to pass a 4K signal at lengths of up to three meters.
Can a very expensive HDMI cable show a better picture and sound quality than a cheaper one? The quick answer is no. An HDMI cable, regardless of the materials used, can either transmit a signal or not – there's no in-between. An expensive HDMI doesn't produce richer colors or crisper sound than cheaper versions.
The ST121HDBTPW video extender kit enables you to extend HDMI audio/video up to 330 feet (100 meters) over a single CAT5e/6 cable.
An active HDMI cable typically goes up to 50 feet/15 meters. A fiber optic HDMI active cord may extend beyond this limit up to 300 feet/90 meters. Well, the latter would be more expensive than an ordinary active cable.
If your run is over 50 feet, you most definitely will require some type of amplifier. You can use an HDMI repeater to join two cables together, or FireFold offers a 75ft HDMI cable and a 100ft HDMI cable with built-in equalizers.