Can't view HD channels
Discussion
Just wondering if there are any TV gurus who could help please. I've got a Sony XF9005 and I've lost all my HD channels. I've tried an auto retune and also a reboot of the TV but with no luck.
Ive checked the Freeview website and it shows no issues with the Talconeston transmitter so suggestions for next steps please
Ive checked the Freeview website and it shows no issues with the Talconeston transmitter so suggestions for next steps please
Mr Pointy said:
It looks like you've lost the highest frequency Mux (BBC B) on channel 46. It's often an indication of a antenna or cable fault so you might want to get the cable run checked. Given that it's started recently it could be water in the join or cable.
Thanks for that I'll get someone out to check it. Just wanted to make certain it wasn't something I was doing EmailAddress said:
Yup and also my neighbour is receiving the HD channels so it sounds like an aerial/cable issueI'll post the solution in case anyone experiences similar in the future
The Inlaws had an issue with channels a while back. They oddly had too strong a signal which I think may have been caused by the aerial 1st going to a recorder and then on to the TV. The answer for them was to fit an inline attenuator which solved their issue. No idea if you could have the same problem.
taxboy said:
Probably a couple of weeks ago. No I can't see Channel 56
Finally found the signal menu !! Strength 100 quality 18/100
Strength maxed out (100) but Quality low suggests over-amplification. Do you have a masthead amplified splitter somewhere? Finally found the signal menu !! Strength 100 quality 18/100
The TV signal metering isn't dead-on accurate. On the Pana in my lounge it will read 100 for strength at anything over about 50dBu. It doesn't differentiate between 50dBu (which is acceptable) and 70dBu where it's over the recommended threshold. The TV is still happy with the Strength, but if the signal gets any more amplification then the Quality will start to nosedive.
The recommended levels for Strength are 45-65dBu. Not all TVs are as forgiving of over-amplification.
Quality is the measure of signal to noise. (There's a bit more to it than that, but this description will do for now.) When an amplifier is added between the aerial and the TV then it boosts Strength but adds noise and so makes the signal to noise ratio worse. The more the amplification then the worse the S/N.
Lucid_AV said:
Strength maxed out (100) but Quality low suggests over-amplification. Do you have a masthead amplified splitter somewhere?
The TV signal metering isn't dead-on accurate. On the Pana in my lounge it will read 100 for strength at anything over about 50dBu. It doesn't differentiate between 50dBu (which is acceptable) and 70dBu where it's over the recommended threshold. The TV is still happy with the Strength, but if the signal gets any more amplification then the Quality will start to nosedive.
The recommended levels for Strength are 45-65dBu. Not all TVs are as forgiving of over-amplification.
Quality is the measure of signal to noise. (There's a bit more to it than that, but this description will do for now.) When an amplifier is added between the aerial and the TV then it boosts Strength but adds noise and so makes the signal to noise ratio worse. The more the amplification then the worse the S/N.
Thanks for that. I was vaguely aware of too much amplification. Im assuming it's not that as it's been fine until nowThe TV signal metering isn't dead-on accurate. On the Pana in my lounge it will read 100 for strength at anything over about 50dBu. It doesn't differentiate between 50dBu (which is acceptable) and 70dBu where it's over the recommended threshold. The TV is still happy with the Strength, but if the signal gets any more amplification then the Quality will start to nosedive.
The recommended levels for Strength are 45-65dBu. Not all TVs are as forgiving of over-amplification.
Quality is the measure of signal to noise. (There's a bit more to it than that, but this description will do for now.) When an amplifier is added between the aerial and the TV then it boosts Strength but adds noise and so makes the signal to noise ratio worse. The more the amplification then the worse the S/N.
EmailAddress said:
I can't quite wrap my head around how the non-powered versions work.
We've been looking at the Wolsey. Let us know what your gains are and all that
Glad you got it sorted.
Many TVs & Recorders have the facilty to feed a low voltage (usually 12V) back up the cable to power the amplifier. This site has a lot of information:We've been looking at the Wolsey. Let us know what your gains are and all that
Glad you got it sorted.
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