All posts by Dave Lindsay
Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.
David Waterhouse: It's going to sound like I'm stating the obvious: it seems like the signal level has dropped on that channel. The point being that it may have been that the strength of C51 wasn't affected but the quality was.
The level of the other channels isn't great either.
The only suggested explanation I can give is that there has been some building work gone on. Perhaps a change of roof tiles or installation of solar panels.
The signal path intersects Gillroyd Lane, just north of Meadow Green and near to the bus stops. There are houses, as well as trees in the area:
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
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Paul Bixley: Without giving any idea as to your location, preferably in the form of a postcode, or a nearby postcode such as that of a shop, then we don't really have a prayer of answering such a question with any degree of certainty.
With the postcode we can look up predicted coverage. We may also find out which transmitter you are using as that is crucial!
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Bert: It doesn't work on a thin laser-like point! Anything within the first Fresnel Zone may affect reception:
Fresnel zone - Wikipedia, the free encyclopedia
Also, there are objects on the ground and terrain plots only sample the ground height at intervals, so it may not be totally accurate.
Megalithia shows the first Fresnel zone by a pink line:
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
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Mick Parsons: You've asked the same question before and there have been several replies:
Details of 12D/Leeds DAB multiplex | ukfree.tv - 10 years of independent, free digital TV advice
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Mrs C .Watta: ITV, Channel 4 etc services from Plymton have changed channel (frequency) and therefore a retune will be required. The channel is back on air and it is indeed a disgrace that you have chosen to come on this public forum moaning simply because you have failed to carry out a retune to the new frequency.
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Nicholas Willmott: That would then mean a drop in advertising revenue due to even fewer regions having their 'own' targeted adverts on +1. Decisions are made for financial reasons and just as SDN is not available from all transmitting stations, ITV/STV/UTV+1 is available on D3&4.
Your suggestion would also give ITV Plc an advantage over STV and UTV.
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David: Mark requested your postcode so as to get a handle on likely reception possibilities at your location.
Judging the predictor Waltham, Sutton Coldfield and Belmont may be available. This the overlap Digital UK was referring to.
With digital, a multiplex is a single signal that carries multiple services. For example, PSB1 (aka BBCA) on C49 carries BBC One, BBC Two, BBC Three etc. Each multiplex occupies the same space as a single former analogue service.
If you are manually tuning then you may need to wipe what's already stored. A lot of receivers will add channels that are manually tuned into the logical channel numbers starting at 800.
If you continue to have difficulty with a picture breaking up then check to see if it is tuned to Waltham. If it is then your issue isn't a tuning one. Do this by bringing up the signal strength screen. On there it will usually give the UHF channel number, for example C49 for BBC One from Waltham. Some receivers don't give UHF channel numbers and give frequencies in MHz only. Should this be the case then we can supply you with those.
What I suggest you do is go to the following services and check that they are tuned correctly (by viewing the signal strength screen):
- BBC One C49
- ITV C54
- ITV3 C29
- Pick TV C56
- Film4 C57
The five channels from Belmont are 22, 25, 30, 53, 60.
The five channels from Sutton Coldfield are 43, 46, 42, 45, 39.
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Richard Creswell: The filters are to filter out signals in the "800MHz band" (UHF channels 61 to 69 which is the top end of the band of frequencies that TVs work with) which is to be used for 4G mobile services.
Tests are presently ongoing in South East London, Brighton and York:
Testing | at800
Judging by your rural location I doubt you will be affected by interference in the future, unless perhaps a mobile base station is located on or close to your property.
According to Ofcom Sitefinder the nearest base stations to you at present are over a mile away.
I wouldn't expect mobile operators to install their stations very close to all Daily Mail readers so as to realise its prophecy!
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Nicholas Willmott: I think you miss the point.
It is not one of people wishing to see the correct adverts but of the broadcasters wanting viewers in designated regions to see them so as to generate revenue from the advertisers.
You have also missed the point that the only commercial (small "c") services which have an obligation to provide a Public Service are the Channel 3 licensee (ITV, STV and UTV), Channel 4 and Channel 5.
All other services operate in a market and purely for profit (i.e. so as to maximise their returns). It follows, therefore, that what is "needed" is decided by those broadcasters. Until viewers become majority shareholders with their primary objective being viewer choice *and payment on their investment being secondary*, then what you suggest will never happen.
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Tuesday 4 June 2013 10:05PM
Nick: Have there been any new developments on the industrial estate? There are quite a few buildings there.