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Freeview reception at PGSTART 110


Terrain between PGSTART110 and Freeview masts

For reliable and stable Freeview reception, you need an unobstructed path between the TV aerial on your roof and the digital TV transmitter.

The diagrams below show the transmitters you can get a signal from - in order from best to worst. The blue line tests the line-of-sight between an aerial 10 metres above ground level (the line is red if there is an obstruction in the line-of-sight). You may be able to improve reception by raising the aerial higher - for safety's sake consult a reputable aerial installer if you need rooftop access. See below the diagrams for advanced options including selecting the receiver aerial height.

The terrain information (from Ordnance Survey and GIS) does not include forestation (where leaf cover changes with the seasons) or city buildings. The line-of-sight line can appear curved as this straight line moves over the Earth's surface.

When you click on a diagram, you will see map with the location selected shown with this symbol: .

What do the map symbols mean?

 location on line-of-sight,  Selected location,  Freeview transmitter,  Freeview light transmitter,  Engineering/fault today.

 

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Show good and blocked paths from PGSTART 110 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)

Comments
Saturday, 25 May 2013
J
janet ludlow
11:24 AM
Worthing

Help, lots of Channels including Yesterday have vanished from the screen , BBC ok! No problem untill about 2 weeks ago.Aerial goes to one on roof...is there work being done in this area ...Worthign!

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janet ludlow's 1 post GB flag
janet's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:03 PM

janet ludlow: The answer to the question depends on which transmitter you are using. Which transmitter are you using?

If you don't know then there may be three possibilities:

Findon - a bit anti-clockwise of north - only carries PSB channels

Whitehawk Hill - adjacent to Brighton Racecourse which is to your east

Rowridge - the main transmitter which is on the Isle of Wight and is a bit anti-clockwise of west. If your aerial is horizontal then switch it to vertical polarisation for better reception of the COM channels.

Is this a communal aerial or your own?

See here for a full list of Freeview services by group (each group is a multiplex, which is a single signal):

DTG :: DTT Services by Multiplex

You say that you have lost Yesterday, which is carried on COM6 (as shown above). The BBC is on PSB1.

Does it affect any other multiplexes?

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Dave Lindsay's 5,724 posts GB flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:14 PM

Graham Cole: I would try bypassing the amplifier by connecting the incoming aerial feed to one of the sets. If the power supply is not where the amplifier is then you will need to remove the power supply before bypassing the amplifier. For example, the power supply could be behind one of your TV sets, it sending its power up the aerial lead into the amplifier, if it works that way.

If your amplifier acts on the hifi signal (FM radio?) then this may have a bearing on the solution.

If the amplifier has a variable gain control then that may want turning down. Failing that installing an attenuator before it will reduce the signal before it is amplified again.

As you are so close to the transmitter (it being relatively high powered for a relay at 1kW) you may get away with an unpowered splitter. I would use one with threaded f-connectors, such as this one here:

Konig Satellite F-Splitter: Amazon.co.uk: Electronics

That said, I am concerned that you are unable to access your loft and of course urge you not to do more than you feel able to. It is a Bank Holiday weekend and all and it is well known that most DIY accidents happen on Bank Holidays!

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Dave Lindsay's 5,724 posts GB flag
Sunday, 26 May 2013
G
Graham Cole
10:08 PM
Treorchy

Thanks Dave, I have decided to leave everything until after the holiday when A and E will be less busy! Seriously, I will be asking someone more agile to climb into the loft. I will let you know the outcome. Thanks again.

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Graham Cole's 6 posts GB flag
Graham's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Monday, 27 May 2013
J
joe
9:03 PM
Halesowen

I have a Goodmans free view HDD box.It was perfectly ok until about 6 weeks ago then i lost nearly all the event information and so therfore cannot set recordings I have retuned it several times but to no avail. All the channels are ok, just no event information. Aerial is in loft. I get event information on two other basic free view boxes i have tried on Aerial

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joe's 1 post GB flag
joe's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
M
Mellor
10:07 PM
Buntingford

Hi All - does anybody know why I can get channel 19 (Yesterday programme) most of the time with a high signal and then it is unavailable for say 2 days. Then it returns.

Thanks

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Mellor's 1 post GB flag
Mellor's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 28 May 2013
Dave Lindsay
sentiment_very_satisfiedPlatinum

12:07 AM

Mellor: Bring up the signal strength screen on Yesterday. Observe the tuned UHF channel number. It should be 48 for Sandy Heath, which I gather you are likely to be receiving from. Ensure that it does not say C28 which is Crystal Palace and is in almost the opposite direction.

If it is tuned to Sandy Heath then have you had your Group A aerial, from the days of four-channel analogue, replaced with a wideband one?

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Dave Lindsay's 5,724 posts GB flag
G
Graham Cole
8:07 PM
Treorchy

Dave Lindsay, While waiting to arrange for the apline climber to ascend to the loft, I have been looking at other possibilities. We have Sky with magic eyes for use in three rooms and I use Freeview so that I can watch something different from my wife, or vice versa. We are on Freeview Light, and I do not think that I could get the full service via Wenvoe, which, in any case, would call for a new Aerial. If I acquire a Freesat box could it be connected to the three tvs with a cable from an extra LNB into the loft and via a splitter? I (really my wife) am anxious to avoid any more outside cables. Would the Freesat box have to be in the loft, and, if so, how could it be controlled. I am not sure if I am explaining myself very well, but hope you can help. What I really want is a full set of options for my wife and I to be able to watch as many programmes as possible independently when the need arises. Thank you for your continued patience.

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Graham Cole's 6 posts GB flag
Graham's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Wednesday, 29 May 2013
F
Frances Hunter
11:01 AM
Widnes

For the past 2 weeks the tv in my bedroom which has a freeveiw box, gets picture break up for 2 hours every morning from 10am to midday. The tv in livingroom which has built in freeveiw is fine. Any ideas?

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Frances Hunter's 1 post GB flag
Frances's: mapF's Freeview map terrainF's terrain plot wavesF's frequency data F's Freeview Detailed Coverage
P
philip day
2:07 PM
Leicester

I can receive numerous channels all i want is the channels numbers for waltham ( east midlands ) so i can manually tune the stations i want to watch, it reverts to birminghham stations if done on auto, phil

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philip day's 1 post GB flag
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Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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