Tech Tips

Maximum HDMI Cable Length: How to Extend Further?

Setting up a new gaming system, home theater, TV or top box or you are just simply reorganizing your own home, figuring out your wiring situation is very important. For example, you might need the help of a longer HDMI cable which would connect your TV to a cable box.

Though you could get a longer HDMI cable, you must take into mind that the length of your HDMI cable could only run so long as since the signal travels longer, the signal degrades as well.

So, now, the question that many ask is how long could an HDMI cable to go and work effectively and efficiently. The short answer to that one is that this would depend. We understand that his answer does not satisfy anyone which is why in this article, we shall investigate about this topic and expound more.

As mentioned early, the right and correct length would be dependent on quite a number of factors. For example, if you would need a signal six feet, then any cable length would be able to do this. However, if you need a cable which would run halfway across your house, then, you might need to invest on a high-quality cable.

There are many different features which you could consider which would ensure to make your cable better. For example, a shielded cable would likely to perform better compared to unshielded one. Moreover, if you have heavier insulation, this would definitely help you have a stronger signal.

Thinner cable, unfortunately, tend to have a weaker signal. This means, the longer the cable you use, the weaker the signal you would have.

The common, standard high quality HDMI cables usually have a maximum length of 50 feet. Though this is the case, using HDMI signal booster would definitely allow you to use daisy chain DHMI cables. Another option you could do is to use an ethernet to HDMI extender which will send signals up to 300 feet. You could also use an SDI to HDMI converter which could run up to 425ft.

HDMI Length – The Basics

One of the main concerns of HDMI cable users is the length of an HDMI cable length. What is the limit and what specification must you consider. The great thing about HDMI cables is that in theory any cable with HDMI imprint would work perfectly no matter the length.

However, there are some cables which would not meet one’s expectations. The reason behind this is due to its length. If you are using a six foot cable, then, you would not need to worry about anything. However, if you are using a longer one, for example, a 30 foot cable, then, you might experience some issues.

According to manufacturers, the maximum functional range of high quality HDMI cable is about 50 feet. Keep in mind and we would like to stress that this could only work if your HDMI cable is considered as high quality. A fibre optic HDMI cable can be as long as 300 feet

Daisy-chain HDMI cables where you would link two six-foot cables together will not get you a 12-foot cable. This means, you might need an HDMI signal cable. Keep in mind as well that cables could have some wear and tear as well.

What If I Go Too Far?

If you have gone too far or if you daisy-chain your HDMI cables, you might start to see some static. This means pixels would not be transmitted correctly and would be seen as white and would have a classic snow pattern.

Though it is rare to get snow over an HDMI cable, if you have a significant distance over the maximum left, then you might not get any signal at all. The reason behind this is because HDMI uses technology which is called transition-minimized differential signaling.

Generally, if you would like to mind the length of your HDMI cables, ensure that your cable should not be longer than 30 feet. Moreover, your cable should be rated for HDMI 2.1 and it would be better if the cable is rated for 4K.

HDMI Alternatives: Ethernet and SDI

Ethernet HDMI Extenders

Ethernet HDMI extenders are used as a transmitter or receiver. It comes with set of inputs and output. This means that you could use this technology for your HDMI cable to connect your video source to transmitter and connect your transmitter to the receiver. Second HDMI cable would connect the receiver to your TV and monitor. Through this technology, you could use up to a 300 foot Ethernet cable. Of course, this would depend on your video quality. Keep in mind that if you use 300 feet cable, you would only get 1080p signal.

Different extenders come with different abilities and capabilities. In fact, the best extenders could transmit up to 4K, 60Hz signal beyond 150 feet. The important thing is to use the right extender and of course, the type of the Ethernet cable. For example, older Cat 5 and Cat 5e cables would not be able to provide 300 feet but if you wish to maximize the range, you could use a modern Cat 6 cable.

If you are using HDMI for commercial use, we suggest that you use HDMI ethernet extender that has an HDMI output on transmitter.

SDI to HDMI Converter

Serial Digital Interface or more commonly known as SDI is a useful Ethernet alternative. It is often used in the film industry as it is better in terms of high quality video. To set this one up, all you need to do is use one for the transmission end and the other for the display end.

Through SDI, you would be able to extend your range up to 425 feet. If you are a professional videographer, this is something you would definitely want. Keep in mind however, that this could cost you more and could be very pricey.

What to Look For

If you would need to purchase an HDMI cable, we suggest for you to look for HDMI 2.1 which is the latest. It would provide you better video quality over a longer range. If you wish for a more durable cable, then, we suggest to get one that comes in braided cord. Lastly, keep in mind that gold connectors do not contribute to anything and words such as high speed or advanced do not mean anything as well.

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