A wireless RF remote control extender is ideal if you want to hide your TV decoder or items of home theatre equipment away in another room or cupboard.
But perhaps you haven’t because the infrared remote won’t work through walls, around corners, or over extended distances.
An RF extender not only works through walls, it also works over much greater distances, such as in a large hall.
First, let's look at how a remote works… and its limitations.
An IR remote controller uses a beam of invisible InfraRed light to carry the ‘button press’ information to your TV decoder, DVD or other IR remote controlled equipment.
Infrared is like visible light, it won’t penetrate opaque objects such as walls.
Even with something transparent, like glass, very little IR will pass through it. Most of the light beam is reflected back from its surface. Some is bent and absorbed within the glass. Only a small amount comes out the other side. Usually not enough to be useable.
But instead of getting IR to carry the ‘button press’ commands, what if we get Radio Frequency energy (RF) to carry them?
Like IR, RF is also electromagnetic energy… it’s just in a different part of the continuous electromagnetic spectrum. It’s essentially the same thing, but...
So a wireless RF remote control extender overcomes all the limitations of the IR remote.
So the information always stays the same but we change our carrier from IR to RF to get the information over that part of the link where IR light can’t go.
Here are some things to watch for if you are thinking of buying an infrared remote extender. It should…
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