St Andrews Church, Epworth- Car Quiz -...
Quizzes & Puzzles1 min ago
Channel 46 Challenge
4 Answers
Does anyone know what has happened to this channel, it just seems to have disappeared?
Answers
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It's still there!
If your Freeview set/box is showing 'no signal' (or something similar) it's because your aerial isn't providing a strong enough signal for the frequency used by that the multiplex (= 'bundle of channels') containing Challenge.
You should theoretically have a different aerial for every frequency used by broadcasters (because the lengths of the elements need to be designed to 'resonate' with that frequency). That's clearly impractical, so the TV aerials we use are only a 'rough match' to each of the different frequencies, meaning that they're better at receiving some groups of channels than others. (Your aerial is poor at receiving the frequency used by Challenge).
Further, signal strengths don't remain constant. They're affected by weather, atmospheric pressure, the sunspot cycle, individual solar flares, interference from other electrical equipment (such as your computer or your neighbour's TV set), etc. Your aerial can cope when signal strengths are good but not when they're poor.
Get a signal booster (around a tenner in many big supermarkets) and the problem should disappear. (However, before doing that, you might want to try simply rescanning for channels. That occasionally fixes problems).
Chris
If your Freeview set/box is showing 'no signal' (or something similar) it's because your aerial isn't providing a strong enough signal for the frequency used by that the multiplex (= 'bundle of channels') containing Challenge.
You should theoretically have a different aerial for every frequency used by broadcasters (because the lengths of the elements need to be designed to 'resonate' with that frequency). That's clearly impractical, so the TV aerials we use are only a 'rough match' to each of the different frequencies, meaning that they're better at receiving some groups of channels than others. (Your aerial is poor at receiving the frequency used by Challenge).
Further, signal strengths don't remain constant. They're affected by weather, atmospheric pressure, the sunspot cycle, individual solar flares, interference from other electrical equipment (such as your computer or your neighbour's TV set), etc. Your aerial can cope when signal strengths are good but not when they're poor.
Get a signal booster (around a tenner in many big supermarkets) and the problem should disappear. (However, before doing that, you might want to try simply rescanning for channels. That occasionally fixes problems).
Chris
1 to 4 of 4
