
~Sue

They could only detect signals being broadcast, not signals being received.Shirleymouse wrote:I always thought their special vans could detect if you had a telly without the man having to go inside the house - am I just very gullable?
Really? I hadn't heard about that. Maybe I just haven't gotten to that part of my electronics classes.Odsox wrote: All televisions and computer monitors have an oscillator to scan the screen which can be picked up by a special receiver several metres away. (An oscillator is like a mini transmitter)
Televisions (and radios) also have what's called a "local oscillator" which varies depending on what channel you are tuned to (analogue TV anyway, not sure about digital), which can also be picked up from a distance. So, with an analogue TV they can tell if it's switched on and what channel it's tuned to, but with satellite TV just that it's switched on.
Certainly the case with the (now) old-fashioned CRT tellys. They emit masses of detectable radiation. I don't know about the flat screens. Perhaps that is why one doesn't see the detector vans any more: all those computer monitors confused them and the modern TVs just don't show up.Ellendra wrote:Really? I hadn't heard about that. Maybe I just haven't gotten to that part of my electronics classes.Odsox wrote: All televisions and computer monitors have an oscillator to scan the screen which can be picked up by a special receiver several metres away. (An oscillator is like a mini transmitter)
Televisions (and radios) also have what's called a "local oscillator" which varies depending on what channel you are tuned to (analogue TV anyway, not sure about digital), which can also be picked up from a distance. So, with an analogue TV they can tell if it's switched on and what channel it's tuned to, but with satellite TV just that it's switched on.
I'll have to look that up now.
Twice as bad as someone with only one or the other?pelmetman wrote:I find this quite interesting, we have one small quite old television and possibly is not good for the environment but then again we have a computer is this any better/worse for the environment?![]()
~Sue
I'm a bit of a technophobe compared with most people my age (early 30s). I have an Ipod and a very simple mobile phone. I can do essential work things with the computer i.e. email, word processing, using movie maker but I have no idea how to do most of the things that other people can do with their phones. computers, Ipads etc. I don't even care!!!greenorelse wrote:Wandering off-topic, do we have any other technophobes here who eschew the 'benefits' of electronic gadgetry (barring the computer of course...if we are allowed one advanced technology, it has to be that)?
Shirleymouse wrote:How bad for the environment are TVs? I was just thinking that people with bigger car engines have to pay more road tax so it would be logical for people with bigger or multiple TVs to pay more for their TV licence and yes I know that's not what the TV licence is for but it might put people off owning ridiculous sizes and numbers of TVs. Someone I know has a 50 inch screen - their front room is like a cinema!
Me too (and me neither to last comment!), don't even have an ipod and don't even know what they look like.Shirleymouse wrote:I'm a bit of a technophobe compared with most people my age (early 30s). I have an Ipod and a very simple mobile phone. I can do essential work things with the computer i.e. email, word processing, using movie maker but I have no idea how to do most of the things that other people can do with their phones. computers, Ipads etc. I don't even care!!!greenorelse wrote:Wandering off-topic, do we have any other technophobes here who eschew the 'benefits' of electronic gadgetry (barring the computer of course...if we are allowed one advanced technology, it has to be that)?
http://chateaumoorhen.blogspot.com/boboff wrote:Oh and just for MMM,(thanks)
I wouldn't call myself a technophobe - I love technology - but I don't like using electricity where human-power would do instead. Having recently taken up baking in a big way, I mix everything by hand instead of using the mixer. It's really not that much effort. I'm also planning to convert my sewing machine to run off a treadle instead of its electric motor.greenorelse wrote:Wandering off-topic, do we have any other technophobes here who eschew the 'benefits' of electronic gadgetry (barring the computer of course...if we are allowed one advanced technology, it has to be that)?