Remote Control Extender
Control equipment through walls and around corners
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.
How does an infrared remote control extender work?
First, let's look at how a
remote works… and its limitations.
How does an IR remote work?
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
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.
An IR remote works best...
a short distance
you aim it at the device you’re controlling
When does IR not work?
solid objects such as walls
corners (must be line-of-sight)
you don’t aim it
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...
RF acts differently to IR
penetrates most solid objects (but not metals)
over greater distances
out more (radiates), so you may not have to aim it
So a wireless RF remote control extender overcomes all the limitations of the IR remote.
An extender works like this
- The remote transmits the ‘button press’ information on an RF
carrier (radio waves)
extender receiver receives some of the RF carrying this information
removes the ‘button press’ information from the RF carrier
now retransmits this same information but via the IR light beam
decoder or DVD senses this as if it were directly from an 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.
What to look for
Here are some things to watch for
if you are thinking of buying an infrared remote extender. It should…
Here's an IR Remote Control Range Extender with excellent reviews
with most remotes
through more than one wall
with multiple devices
- be easy
to install and setup – good user instructions
- have a power pack with line voltage suitable for your country
- have good
- be reasonably
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