They say that the quality of the signal that an HDMI cable can deliver depends on its length. This means that long HDMI cables deliver reduced signal quality. This supports the belief that the maximum length of an HDMI cable to retain the signal quality is 15 feet. Fortunately, this tale is not true at all. So, how long can an HDMI cable be?
An HDMI cable is used to connect various media components to high definition TVs. It supports various media formats and resolutions to deliver an optimal viewing experience. Most HDMI cables work with simultaneous delivery of dual video and audio streams.
There are many factors to consider in an HDMI cable, and buying one is not that simple. This article focuses on one important feature of an HDMI cable—its length. What is the maximum length of an HDMI? How can one extend its length?
The usual length of HDMI cables found in most stores ranges from three feet to 25 feet. Even in online stores, 50-foot-long HDMI cables are difficult to find. HDMI cables that are longer than 25 feet are rare, although the 50 feet length is considered the maximum an HDMI cable can be.
When practicality is taken into consideration, an HDMI cable that is less than 50 feet will work dependably. Cheaper and lower quality HDMI cables can keep the 780p or 1080p resolution. On the other hand, expensive HDMI cables that are shorter than 50 feet can maintain the 1080p. Then again, the length is not the only factor that contributes to signal integrity and reliability.
HDMI cables that are 50 feet long can degrade the signal. However, longer cables like these use an amplifier to compensate for the signal interference and data loss. They are not always the best option, but they work excellently while maintaining the quality of the signal.
Most high-speed HDMI cables are three to six feet in length. They are used to instantly connect a TV to other multimedia components, such as Blu-ray player, laptop, and Xbox, that are situated beside each other. This kind of set-up is common, and it is the safest way to retain the signal quality and reliability.
Because of the advanced features of HDTVs, an entirely new way to arrange home theater systems was introduced. Flat TV screens are becoming thinner and more lightweight, and their picture frame construction is excellent for hanging on the wall. Projectors have become more affordable than before too, so many homes today now have a home theater with projectors.
Setting up a home theater with projectors can be challenging. The cables run through different paths creating a messy scene. Making a neat installation of these kinds of home theater requires in-wall wiring, which can even take place in one room to another. For this kind of set-up, a long HDMI cable is needed.
Many home theater systems have become more and more advanced and complicated, all to improve the entertainment experience of the users. Manufacturers frequently receive calls from customers asking for solutions on how to manage long HDMI cables for home and commercial audiovisual systems.
One of the latest solutions for long HDMI cables is the fiber optic HDMI cable. These are high-end techs that convey excellent sound and picture quality with high-resolution 4K content at significant distances of up to a thousand feet. Fiber optic HDMI cables go far beyond than traditional copper HDMI cables.
How do fiber optic-based HDMI cables work? They convert electrical HDMI signal into optical data that are situated in the fiber optic interior. Then, these optical signals are translated back into an electrical signal when they reach the projector or TV.
In optical HDMI cables, there is no single data or signal loss despite the distance the signal travels. It is also resistant to interference caused by wireless technologies, appliances, and computers.
Aside from the potential signal loss due to cable length, there are some other factors that interfere with the performance of HDMI cables. Among them are the following:
When you experience the loss or absence of sound or image when connecting a DVD player and a TV, the problem must be the video component. Some of the video components for the HDMI output are turned off by the manufacturer.
What you can do is switch it on through the device’s setup or press the HDMI button located on the TV’s or DVD player’s remote or panel.
Many TVs can only produce two-channel audio but are unable to decode Dolby Digital and DTS surround sound. However, there are HDMI-equipped video devices from the factory that are set up to convey multiple channel audio. This can be fixed by altering the device’s audio setting to two-channel (PCM).
When connecting a cable box to an HDTV doesn’t project an image, the problem is usually the cable box. Some cable providers don’t upgrade the client’s equipment to the latest firmware or boxes in order to make them compatible with TVs equipped with HDMI capability.
This can be solved by reporting the problem to the local cable provider. If the issue is HDMI-related, one effective solution is to use the device’s video connections and optical/coaxial audio connections.
HDMI cables come in different versions. However, it should not be the only consideration when buying an HDMI cable. Instead, buy the HDMI cable version that can support the specific features that you want.
For example, if you enjoy watching 3D videos, use the source device (such as a disc player or game console) and the TV that supports the 3D technology. This is also the same for video resolution. A 1080p TV will only show 1080p resolution if it is connected to a 1080p device source.
A good HDMI is made of gold-plated connectors that are corrosion-resistant and preserve signal integrity. The cable must be wrapped with a durable coating that won’t easily get destroyed. A good HDMI can support various components such as Blu-ray player, Xbox One, Apple TV, and PS4, as well as the latest HDMI standards such as 4K, 3D, and UHD.
How long can an HDMI cable be? As long as you need it to be. As technology becomes more advanced and manufacturers are able to find solutions to common home theater issues, HDMI cables will retain data and signal integrity regardless of length.