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A reasonably common problem that comes with the advent of HDMI (High Definition Multimedia Interface) turning into the new business normal for transmitting TV signals is how you can choose the proper length HDMI lead. In the old days when everything was carried by RG6 Coaxial cable, it was doable to run the signal over pretty long runs and then merely reduce the cable to size and fit a coax connector and simply join it to the TV. Though RG6 cable is still used to attach the satellite dish to say for example a Freesat+ receiver, the output from the box to the TV will now invariably be a HDMI cable.

One other complicating factor is the favoredity of hanging Flat screen TVs on a bare walls or over a fireplace. Obviously nobody needs HDMI cables tacked along the wall, so invariably the cables are being buried within the wall and normally run from the TV to a nearby inbuilt unit which will house the satellite receiver. What makes choosing the right size of lead is that it is just not doable to simply extend or shorten the lead. Generally there’s a good number of HDMI cables ranging from 1m all of the way up to 20m, with the higher limit being because of the level of signal loss that happens in cables which might be not than 20m.

Irrespective of how well you propose it there’s always a possibility the the cable will too short. For example the HDMI input in your new HD TV is in a special location than you anticipated, otherwise you resolve to mount the TV in a slightly completely different location. There are 2 options when it involves extending a HDMI cable.

The first and easiest option is to easily use a HDMI coupler which comes with sockets on each ends into which to insert HDMI cables. This option is both cheap, compact and does not want a power supply. It is nonetheless only suitable to make use of when the combined size of the two cables is less than 20m.

The opposite option is to use a HDMI repeater, which is a powered unit that each joins 2 HDMI cables collectively and also boosts the signal. Usually this unit is used when combining HDMI leads the place the mixed length is over 20m. The necessity to have the unit plugged in and its cost are actually points, but this is an essential unit on very lengthy runs.

A remaining note on HDMI cables is that basically over short runs, the difference in the signal loss between a low cost and an expensive HDMI is fairly minimal. Where spending the extra money is worth while is on lengthy runs of cable. A lot of the price misplaced HDMI supplier do not do budget level cables which are longer than 5 or 10m.

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