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Tuesday retune for Sheffield and Nottingham

Due to the number of changes this week, there is a "retune event" today for Sheffield and Nottingham.

Due to the number of changes this week, there is a retune even
Published on by on UK Free TV
Today, 27th September 2011, there are final changes at two transmitters:

At Nottingham the SDN multiplex moves to 8k mode, and moves from C67 down to C51; also the ArqA multiplex moves from C63 down to C52 and goes to full power.

At Sheffield, it is the ArqB multiplex that moves from C63 down to C39 today.





Your comments: most recent posts are at the bottom


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David Adamson
Tuesday 27 September 2011 11:21AM Nottingham
why only ch .22working on freeview ?
why no prior notice on screen of need to retune in this area ?
Dave Jenks
Tuesday 27 September 2011 11:23AM Nottingham
After retuning this morning my HUMAX HDR FOX T2 box has started started receiving what appears to be Sutton Coldfield rather than Nottingham. The stand-alone TV's appear to be okay without retuning.
Can you help please?
Steve P
Tuesday 27 September 2011 11:48AM
Dunno about Nottingham specifically but IIUC the new system is for all txs in a group to use the same name.
Mike Dimmick
Tuesday 27 September 2011 5:57PM
Steve P: Nottingham is part of Waltham's group and would display East Midlands.

Dave Jenks: The work was being done this morning in daytime, expected to finish at 12 noon, rather than in the early hours. It could be that services were off-air when you retuned.

Do check Digital Region Overlap, to see if anything there applies to you.

Digital UK predicts a variable service from the Nottingham relay for you, you're expected to get a much better service from Waltham or Sutton Coldfield. If the aerial points south-west, and is oriented with the elements going side-to-side, the box *should* tune to Sutton Coldfield as that's what the aerial is pointing at. If it points slightly south of east, that's Waltham. If oriented vertically - elements going up-and-down - and pointing roughly due north, it's aimed at the Nottingham relay.
Dave Jenks
Wednesday 28 September 2011 12:05PM Nottingham
I re-tuned HUMAX this morning (28 Sept) and the problem remains.
I checked signal detection on HUMAX and find that ch's 43 & 46 (650Mhz & 674Mhz) have low signal strength and poor quality, as they are Sutton C.
Ch's 21,24,27,48,51 & 52are are strength 75% and 100%.
E.G BBC1 - channel 1 on the HUMAX EPG listing is bad whereas channel 800, also BBC1 is ok.

All the TV's in the house are rxing Nottingham txr perfectly
Mike Dimmick
Wednesday 28 September 2011 1:16PM
Dave Jenks: Do you have the latest firmware? It was broadcast over-the-air on 4 July 2011; if you don't have it you can get it from www.humaxdigital.com link icon 
Welcome to HUMAX [UK]
. The version numbers are also listed at that page.

Freeview HD equipment *should* prompt you for the region to select when tuning for the first time. If this box doesn't, check with Humax support. You might be able to get it to prompt again if you select Factory Default from the Installation menu, rather than Automatic Search.
John Tait
Wednesday 28 September 2011 2:00PM Chesterfield
My Humax signal strength indicator shows 80% with 100% signal quality when pointing at Emley Moor from S40.
What are the acceptable limits for proper reception ?
brendan C
Monday 3 October 2011 1:41AM
There seems to be a problem with the Nottingham transmitter on the Sky News mux which is ArqA I believe. Yes it is ArqA as my TV says it is on channel 52.
I am getting occasional interference/blocking on this mux. This is rather disappointing as I was having no problems before the change, none whatsoever. In fact it is extremely disappointing given this is on 'full power'.
I am 4 miles from the transmitter, I also went to my parent house who are only mile form the transmittor, ie almost on top of it and they are getting the same problem.
It seems channel 52 is prone to interference.
Anyway there is definitely a problem there which needs sorting.
brendan C
Monday 3 October 2011 1:54AM
Dave Jenks, ,my parent have on of those expensive but 'easy to use Humax' boxes.
I was always picking up weak Sutton coalfield signals on it. The solution for me was to lower the aerial and retune to get rid of those weak signals which block the stronger one as they are found first.
You may be able to achieve the same result by fitting an attenuator (something to weaken the signal). It may also be possible to individually tune in a channel but I found the Humax box a bit of a 'pig' to understand.

Their house was a bungalow so it was easy to get at the aerial. Basically you need to find a way of weakening the signal so it missed the bad signals completely. Maybe a bit of badly shielded cabling might do the trick?
You would only need it for the tuning. Or just running it through a long extension cable to, or buy an attenuator on ebay perhaps?
mycloud
Monday 3 October 2011 11:32PM Sheffield
Hi, I have a full HD tv, last week stopped getting all channels on C39, ArqB multiplex, previously no problems. Not counting intermittant poor reception.
Live in S10 area.
No analogue interference, same shared ariel.
Could anyone give me some pointers?
brendan
Tuesday 4 October 2011 1:11AM Nottingham
brendan C:

Hi mycloud, it might possibly be that following changes you are picking up a weak signal from waltham instead of the one from nottingham. I know the Humax set top boxes tend to do this. Afterall if they get the same mux from two different transnittors they have to decide which one to store, some may store both so perhaps you have the channels stored on higher numbers ie 800+?

So weakening the signal when tuning (or permanately might cure it. YOu can get a variable attenuator on ebay for a few quid.
YOu could even try making the cable longer or putting in a bad section (some insulation missing). Basically anything to reduce the signal.

Or maybe you simply need to retune mycloud?
mycloud
Tuesday 4 October 2011 7:53AM
Thank you for the advice Brendan.
I think my main transmitter should be the Sheffield one, being closest to it.
Retuning has not helped.

Freeview tuner is built in. Retuning has not helped so far. Will look into attenuators.
Steve P
Tuesday 4 October 2011 10:27AM
www.ukfree.tv link icon Freeview on Sheffield TV transmitter | ukfree.tv - independent free digital TV advice

mycloud - you are not supposed to get anything on 39 but should get on 49.

Try a "factory retune" or "complete reinstall" of channels - names vary.

And trey retuning with no aerial at all - though your huge signal (95dBuV/m)
UK digital TV reception predictor
means you might still get something.

What ae are you using? Bent wire should be enough! (LL145HD)
Mike Dimmick
Tuesday 4 October 2011 3:06PM
Steve P: That information is out of date. It came from an Ofcom document (licensing section) that has been superseded and wasn't consistent with a different Ofcom document ('stakeholders' section). All sources now agree that ArqB has moved from C63 to C39, now that Emley Moor's early HD service is no longer in the way.

mycloud: Given you are practically on top of the Sheffield (Crosspool) transmitter, you probably do have too much signal. See www.ukfree.tv link icon Freeview signals: too much of a good thing is bad for you | ukfree.tv - independent free digital TV advice .

Do be sure that you have done a full factory reset, exactly as you should have done at switchover; many boxes simply can't handle a multiplex moving to a different frequency using the 'add channels' function.
mycloud
Tuesday 4 October 2011 8:48PM
Thank you everyone for their input...much appreciated!
I am also baffled as to why I suddenly have this problem, prior to last week have had near perfect reception.
Will try factory retune again, although have followed this websites instructions of retuning without cable, to clear channel list..
brendan C
Wednesday 5 October 2011 3:34AM
brendan: mycloud, I put your postcode into the wolfbane sitet and it seems you should get a strong signal from the Sheffield transmitter and only need a set-top aerial.
But presumably you had a strong signal before the anyway?

I am in Nottingham and I also have (slight) problems on the moved mux. I also had perfect reception until about a week ago.

Also mycloud I would check the channel number of the channel with interference and make sure it says C39, it maybe the mux got overlayed by the same mux from a more distance transmitter. This happen on my parents TV, I fixed it by laying the aerial on the ground and retuning so it could not find the weak signal.
The may also be a way of manual retuning C39 where you specify the channel to search for, try that.
A bit of co-axial cable connected to a metal coat-hanger might be good enough for you.

I have been getting a bit of interference on mine again today on C52 but it's a negligible problem really.
Martyn
Friday 7 October 2011 6:21PM Nottingham
Hi

Any ideas why my Sky Sports 1 and 2 on my BT vision have suddenly disappeared? Have tried a rescan but still not picking up. Film 4 is also not there. Very frustrating that I paying for something I cannot now watch. I live in Nottingham by the way and have also suffered from bbc 1 becoming Midlands as opposed to East Midlands.

Thanks

Martyn
mycloud
Sunday 9 October 2011 6:04PM Sheffield
update

I have the ArqB channels back..after
manually retuning several times on C39
but reception remains poor..distorted image/sound..

full postcode S10 3EU
is anyone aware of any transmitter works going on?
Steve P
Sunday 9 October 2011 7:37PM
mycloud - what sort of aerial are you using?

You have so strong a signal that might well be your problem. Try without an aerial, and if nothing, with just a bent wire in the coax socket (aka "Sketchley Loop")

Or a built-in or set top aerial. NON amplified.
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