All posts by MikeB
Below are all of MikeB's postings, with the most recent are at the bottom of the page.
Coach: We need a full postcode, details of your system, and what you signal strength is.
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Coach: Your about 42km from the transmitter (assuming its Sandy heath your tuned into). Thats not that far, and DigitalUK reckon your going to get a very good signal.
Signal strength is 75-85. 75% is right on the money, but 85% (depending on the tuner - Panasonic' and Humax's are known to be particularly sensitive) is heading towards breakup territory (see 'too much of a good thing' on this website). BCC4 and News are actually much weaker channels than BBC1 HD, as you can see for yourself.
Do you have a booster? Might be pushing signal strength too high.
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Coach:
'Although high normal strength is 95% and no problems. Last time I purchased an attenuator which
only made matters worse.'
A high strength of 95% is not normal! Yes, no problems seemingly manifested itself, but I bet your were very close to the tuner being overloaded. In what way did the attenuator make things worse?
Now you could have a state where the very high power mux is suppressed, but this also kills the low power ones as well, so its swings and roundabouts. And the fact that a relatively weak mux (BBC4) is at 95% points to the others being too high. Your signal strength is all over the place - which sound exactly like too high signal strength.
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Graham Scott: Look at the top of the page = can you get the other channels on that mux? Check you signal strength - that mux is on much lower power than BBC1 HD, etc.
' I receive your other HD channels fine '. 'Your' channels? This website has nothing to do with any broadcasters...
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Catherine Harden: We have no idea what your transmitter or location is, so we cannot tell you what your signal should be like or if the transmitter has a problem - you can check for yourself.
However, in most cases, it has nothing at all to do with the transmitter (and such problems dont tend to last long anyway), but everything to do with the households aerial system having a fault - look at the page which will help you diagnose them. In other words, its likely to be a problem at your end.
BTW - analogue and digital signals come from exactly the same transmitters and close to the same power - so any problems are going to be similar, its just in the old days the TV picture went fuzzy, and now it just breaks up.
Thanks to digital, you get vastly more channels and HD.
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Anne Burgoyne: If your on Sky, then sort it out with Sky - Ch74 is on Freeview! And since we have no idea of your position, we have no idea as to what your signal should be like. However, if your continually getting a rubbish signal, that points your own system etc being a problem.
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Mrs walker: put your postcode into the site, and it will tel you if the transmitter has a problem. But if your getting no signal, thats almost certainly YOUR system thats at fault.
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Sharon Barkley: If your getting no signal, that because almost certainly your aerial system has a problem. Frayed cable, water getting into a joint, etc.
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Ed Hopper: The signal can vary a bit on any mux - just watch the signal strength/quality on your TV for a while. But 'no signal' means just that - and thats almost certainly because your aerial system is up the spout. CBS is on a relatively low power mux, and its likely thats going to show up a problem first, even if not all the time. Look at the power for the other muxes - they should be 75% to be perfect - they might be much lower than that, but still hanging on.
Weather makes a difference - wet weather might mean moisture in the system, which can kill the signal - but dries out, and its ok again. And always check the aerial lead - might just have come lose.
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Thursday 22 December 2016 10:31PM
Derek Welch: We need a postcode, and details of your setup, plus your signal strength.