Freeview reception at PGSTAR T30
List is for aerial group type: ■ wideband ■ group A ■ group B ■ group C/D ■ group E ■ group K
List is for aerial group type: ■ wideband ■ group A ■ group B ■ group C/D ■ group E ■ group K
Distance to transmitters:
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Show good and blocked paths from PGSTAR T30 for aerial height of ...10m20m (Angel of the North)25m30m40m56m (Hyde Park Flats, Sheffield)62m (Monument)90m (Royal Liver Building, Liverpool)107m (Meridian Quay Tower, Swansea)115m (Bridgewater Place, Leeds)127m (Glasgow Tower)143m (Guy's Hospital)158m (Blackpool Tower)170m (Spinnaker Tower, Portsmouth)180m (The Gherkin/BT Tower) 193m (Tower 42)235m (Canary Wharf)310m (The Shard)(default view)
Friday, 10 May 2013
Clare McNeil: I hope that we have allayed your concerns and put your mind at rest.
Should you have an issue when the test starts and the filter doesn't cure it, or you would like assistance fitting the filter, then at800 are the people to call.
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jb389:47 PM
peter tovell: Even although you are located at just under 4 miles away from the mast you would appear to situated at a very low angle to it thereby being under the main beam, this type of location being highly sensitive to any changes that might have taken place in transmission and which always has knock on effect as far as radiation angles are concerned.
I would suggest that you try moving your aerial a fraction to the left or right, or even higher or lower, this frequently being found to rectify this type of problem.
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Saturday, 11 May 2013
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Toni B11:12 AM
Christchurch
My elderly relations live in Christchurch BH23 and have Freeview set up by a local installer. For years they have suffered routinely a loss of signal on most channels or at least severe pixilation at regular times and often twice a day or more, e.g. between 3:30 and 5:30 PM but lately this can be at any time. Anyone suggest likely cause as I believe they do receive their signals from Rowridge?
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Toni's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
Hi Dave
Thank you for your post & help. Ah I see what you are saying, sorry terrible at putting things into perspective, another classic Asperger characteristic, alas. I hope there wont be any interference & the 800 filter,I got yesterday, wont be needed. Although I did lose all BBC channels 2 days ago, but that might be due to the high strong winds we are having here. However if the filter is needed hopefully it will do the job. I guess its a case of watch & see what happens with this test period and take it from there if need be.
Clare
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Clare's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
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Chris11:44 AM
Leicester
In the last 10 days our Ch 61 reception (BBC etc) on the Waltham transmitter has been dreadful. We are in the LE4 1 area and have 92% signal strength but signal quality is 0% - 27% (varies rapidly). Ch29 however is fine (92% SS, 100% SQ). We have a recent aerial (9 mths) and have had no problems until recently. I have done a software update on TV + full retune - made no difference. I know there is a retune planned at the end of May for Waltham but what is causing the problem now?
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Chris's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
Toni B: Perhaps it is a combination of the trees and the traffic on Lymington Road, which intersects the signal path. I offer the latter as a possible explanation of why the reception varies at different parts of the day.
I say this because, in the direction of the transmitter, the ground rises before the water. See the terrain plot:
My Freeview | ukfree.tv - 10 years of independent, free digital TV advice
Imagine if the transmitter were beaming out light. The line between it and the receiving aerial is likely to be obstructed by objects on the ground. Vegetation and traffic change over time and so their effects on reception may change.
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jb3812:37 PM
Chris: The problem you refer to is widespread and is in no way connected with your installation, as I reside approximately 14 miles away from the transmitter (Stamford area) and have been forced to retune my PVR's to record the BBC from Belmont (@ 51 miles) because of the frequent glitches spoiling recordings.
Of course it has to be looked at from the angle that the mux channel that the problems are occurring on is the "only" one involved in the retune on the 29th when it drops down from Ch61 to Ch49, and so it would be rather naive for anyone not to connect the two as the change involves slightly more than just pressing a few buttons. (Ch49 an)
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jb381:41 PM
Toni B: In addition to the reasons explained by Dave Lindsay, all of being extremely valid! it would also be prudent to check if the aerial installed at the property is still mounted horizontally or has been swivelled around to the vertical position? as Rowridge transmits on both horizontal and vertical polarity, but with its "commercial channels" only being high powered on vertical transmissions, V 200Kw / H 50Kw.
I am of course not saying that this would cure the problems referred to as vegetation will interfere with RF signals no matter what the polarity might be, but if the aerial was mounted vertically it would give a slight edge in overall reception to that received on the horizontal plane.
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pete2:38 PM
Weymouth
I don't have a problem with digital t.v. I would like someone to answer a simple question for me, and that is,"can I recieve all the freeview channels that is listed in the current Radio Times. I can only recieve about half that is on offer.I live in weymouth and our nearest "Booster Tranmitter" is only one mile from my house,you can see it clearly from my back garden.Are there any plans to relay the missing channels in the near future please.
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pete's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
pete: No. The UK now has a two-tier terrestrial transmitter network. This is because there are two types of broadcaster.
The Public Service Broadcaster (PSB) channels transmit from the Weymouth relay. There are over 1,000 other low power transmitters which serve about 8.5% of the population which also only carry PSB channels.
As well as Public Service Broadcasters, there are now Commercial broadcasters (COMs) which have no obligation to provide a "Public Service", only make profit. For this reason they only broadcast from the largest transmitting stations and are therefore not "missing" from any transmitting station as it is their choice as to which they serve from.
For a further explanation, see:
Londonderry (Northern Ireland) digital TV transmitter | ukfree.tv - 10 years of independent, free digital TV advice
It is doubtful that you may be able to receive the full service (from another transmitter). As well as having inferior coverage due to not being carried from all stations, there are some who can only receive PSB stations reliably even though they are using a full-service transmitter. This is because the signals aren't as good as well as the frequencies they use being reused by transmitters in closer proximity than the PSB frequencies are reused.
The COM channels from Stockland Hill share frequencies with the COM channels of Rowridge, so at your location you "may" find that this rules out reception of the full service from the latter. That said, Rowridge's channels are vertically polarised and Stockland's are horizontally polarised.
See if any of your neighbours have aerials directed to Rowridge which is on a bearing of 84 degrees. Rowridge broadcasts horizontally and vertically now, albeit that the COM channels are better with the latter. The fact that someone has an aerial pointing to it does not necessarily mean that they can pick up all channels.
You may give consideration to Freesat, particularly if you are unable to receive the Freeview COM channels.
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