Quizzes & Puzzles8 mins ago
tv aerials
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can you buy a tv aerals,and run two tv on it
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Most households probably have a TV in the living room, plus one in each of the kids' bedrooms and possibly several other TVs as well. Take a look at the rooftops. You'll almost never see a house with two TV aerials on it. That's because all of those TVs are using a single aerial.
Splitting the signal between two (or more) TV sets does lead to a loss of signal strength but it's not as great as you might think. (You don't simply get a half-strength signal down each cable. The actual signal strength along each cable is only slightly less than down a single cable. It's all to do with logarithms!).
A good quality aerial, with good quality cabling, can usually feed two or three TVs without the need for additional amplification.
Chris
Splitting the signal between two (or more) TV sets does lead to a loss of signal strength but it's not as great as you might think. (You don't simply get a half-strength signal down each cable. The actual signal strength along each cable is only slightly less than down a single cable. It's all to do with logarithms!).
A good quality aerial, with good quality cabling, can usually feed two or three TVs without the need for additional amplification.
Chris
It's not about logarithms .. that's a mathematicians answer. It's about Gain ... DbA ... and signal quality versus noise.
It's especially important with digital signals.
You should use a always distribution amplifier or active splitter when splitting signals, otherwise you will likely not receive all the Digital MUX's (channel packets)
It's especially important with digital signals.
You should use a always distribution amplifier or active splitter when splitting signals, otherwise you will likely not receive all the Digital MUX's (channel packets)
The thing is ...
You amateurs who just do a search on Google for answers on issues like this that you don't know a lot about, do not realise that for most people, it is really important to have a good and properly aligned antenna with decent amplification for digital terrestrial signals. A lot of people live at the moment in what is called a "fringe" area which requires a proper setup. Old 50 ohm downlead, passive splitters, joined-up-with-tape downlead all produce degradation or noise in the signal. You will have problems like have been asked about here before.
You amateurs who just do a search on Google for answers on issues like this that you don't know a lot about, do not realise that for most people, it is really important to have a good and properly aligned antenna with decent amplification for digital terrestrial signals. A lot of people live at the moment in what is called a "fringe" area which requires a proper setup. Old 50 ohm downlead, passive splitters, joined-up-with-tape downlead all produce degradation or noise in the signal. You will have problems like have been asked about here before.
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