All posts by Chris.SE
Below are all of Chris.SE's postings, with the most recent are at the bottom of the page.
Clare McNeil :
Hi there. That's very odd because the UHF channel numbers should always appear listed irrespective of what's been transmitted, or what the weather does etc. In theory you can tell it to tune to a uhf channel that isn't Whitehawk Hill !! Not that you'd necessarily get anything, but that's beside the point.
You did look for UHF channels 48 and 36? If the interference is still bad they just won't get a signal, but it should try to tune.
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Clare McNeil :
Hi. As you've said you aren't "techno minded" I've tried to explain is as none a technical way as possible.
I don't mind trying to help further if you need it, but to be clear a new set wouldn't pick up or tune to signals that aren't there or have very bad interference.
What make and full model of set is it?
What uhf channel numbers are you seeing when in Manual tune?
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Clare McNeil :
Ah, I can see where the confusion is -
Quote "The manual tuning is only showing channels 22-66."
That's precisely what it should be showing it's the UHF channels for the multiplexes not the TV Programme channels. When tuning manually you select the UHF channel for the multiplex you want. An automatic tune would go through all 22-66.
When retuning you do the UHF channels not the TV programme numbers so you do't do 1,2, 231 etc.
So in your case you need to choose 48 to start and tell it to tune.
After it's done that then select 36 and tell it to tune. But as it's an old set in my not be HD so 36 may not get anything (these are for the High definition channels that are at the programme numbers 101-107 etc.
Hope that helps, try again.
PS. Sony sets are normally quite good.
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Clare McNeil :
Ah good, at least you are picking up the multiplex ok, that's very odd about 2 BBC2s.
IF you are getting all the other channels ok, the full 120+ of them, without any interference or pixellation, you could try tuning from scratch, but have a look to see what you are getting first.
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Clare McNeil :
No problem. Post back if you need more help. As you say, best not to retune and see how it goes.
Don't be afraid to ask any questions even if they might seem silly ;)
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Jody:
The Tropospheric Ducting conditions this time were quite extreme periodically and only very recently seem to have cleared. There's the possibility according to some predictions that there may be some more middle of next week but not as severe.
IF you retuned at all when your reception was disrupted (be it weather, engineering or faults) then if you had no signal or very badly pixilation, it often just clears your correct tuning. If you were previously correctly tuned, it's never recommended to retune under any of those conditions.
You've posted on the Oxford transmitter page, if it is Oxford you normally get your signals from it may not be the best of reception you get in the Dunstable area but it will depend very much on location. As you haven't given a full postcode I can't check that.
IF you retuned whilst your signals were disrupted by the Tropo, there's also the possibility you may get tuned to an incorrect transmitter with weak signals. There are 4 main transmitters that might be readily received in parts of your area.
If it's Oxford that you are supposed to be receiving, check in your TV Tuning section that you are correctly tuned to Oxford's UHF channels which are C41, C44, C47, C29, C31, & C37.
That's in multiplex order PSB1/BBCA, PSB2/D3&4, PSB3/BBCB HD, COM4/SDN, COM5/ARQA, COM6/ARQB.
C means channel, if you hover over those numbers it tells you the frequency if you need those.
If you receive the Local multiplex in your locale, that's on C46 in your area.
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Jody:
Odd, as the tropo should have cleared for now.
Do the obvious checks, make sure your aerial still looks intact and is pointing correctly, your downlead isn't flapping in the wind, and all your coax plugs etc are in correctly. Make sure you don't have any HDMI leads close to your aerial lead or flyleads.
It ought to be safe to retune if nothing else solves the problem. I wonder if you are getting other interference?
Have you had a postcard from https://restoretv.uk ?
You may have a mobile mast nearby now, new/updated operating in the 700 MHz band
Go to the website and put your postcode in https://restoretv.uk /postcards-not-sure/
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Jody:
Hi, sounds like you've done all the sensible and correct things. If you normally manually tune then that is always best and as you suggest, there would be no benefit in retuning.
There's no reported faults that I can find for Oxford and it's not currently listed for Planned Engineering so hopefully the issues have gone away. Post back if problems start again.
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Friday 13 October 2023 4:48PM
mr t carroll:
Just for your information I meant to include this in my previous post -
See Channel listings for Industry Professionals | Freeview for which TV Programme channels are carried on which multiplex as the lists on this page aren't fully up-to-date as the site owner hasn't had time to do all the changes that took place with the 700MHz clearance and some of the recent listing changes.
Also above, the UHF channel numbers for all the Local multiplexes haven't been updated. I don't know which you may get, it depends on the area/postcode you are in.
The correct ones are -
Local Manchester on C24, Manchester GI on C27.
Liverpool Local mux on C21, Preston Local mux on C40.
If you hover over the C channel numbers, it should give you the frequency if you need it.
What you can receive and how well will depend on location, a full postcode is needed to look at predictions.