TV transmitters and why they matter.
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Television is received through your aerial from a transmitter.
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There are over 1,100 transmitters dotted around the country.
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From 2008-2012, the transmitters will be switching over to digital - one by one...
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Your television aerial is pointing at one of these transmitters.
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That means your switchover date depends on the transmitter you are watching.
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How many channels you receive and your signal strength will also depend on the transmitter.
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Beams from nearby transmitters often overlap, so you may have a choice of transmitter to watch.
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Changing from one transmitter to another may change the selection of channels you receive.
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You usually point to the best one for you - however you may want to check.
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If you need to change your transmitter, you'll need to contact a qualified installer and will need a new aerial.
So that's why transmitters do matter.
