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Freeview: Terrain between AB515QX and Freeview masts
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Freeview reception at AB51 5QX

Terrain between AB515QX 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: .Internet Explorer 9+, Firefox, Opera, Chrome, and Safari required.

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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Your comments: most recent posts are at the bottom

firstFirst comments prevEarlier comments  ◊ 

Your comments are always welcome. Please use the form below to add your thoughts or questions to this page. We will get back to you as soon as we can.

J
jb38
Friday 25 July 2014 12:23AM

Peter Young : Ref: MikeP's posting, although that said by same when referring to my reply is indeed correct, however the reason why I did not specifically include Rowridge as a possible alternative for reception to Hannington is for the following reasons.

(1) All aerials seen in your area are observed to be pointing towards Hannington, no exceptions having been found.

(2) Checks made using DUK's reception predictor for your location indicates "iffy" (officially variable!) reception from Rowridge on all muxes with the exception of BBC A / D3&4 and BBC B, the possible reason for this being somewhat backed up by the terrain indicator revealing that the signal from Rowridge suffers from an obstruction of a sizeable nature at about 2.5 miles prior to your location.

Although the reception predictors indications have always to be taken with the proverbial "pinch of salt", but when this is coupled to that seen on the terrain indicator then DUK's forecast cannot be completely disregarded.

T
Taz Bradley
Friday 25 July 2014 2:44PM Helston

I would like to know if I should get a zone 1 or zone 2 freesat dish - we have freeview at the moment but the signal is pretty poor as we are in Cadgwith. Any advice/recommendations would be appreciated.

J
jb38
Friday 25 July 2014 6:37PM

Taz Bradley: Zone 2 dishes are always a better bet by them grabbing that little bit more signal from the satellite over that of a Zone1 dish, likewise are less likely to be affected by heavy thundery type rain etc.

If the position the dish is going to be mounted in has a clear view of the S / S.Easterly skyline then there shouldn't be any problems with reception.

MikeP
Friday 25 July 2014 8:27PM

Taz Bradley

A Zone 2 dish will 'collect' roughly twice the amount of signal strength than a Zone 1 because it is larger. The stronger signal means it will be less affected by heavy rain/snow/hail/etc that diminish the amount of signal arriving at the dish. So a Zone 1 could well be borderline in your part of Kernow in a village I know quite well having enjoyed holidays there several times. (Yes, I'm a 'grockle'!)
A Zone 2 dish, being larger, needs to be carefully mounted on good strong support so it doesn't get moved by the winds and storms and be aimed very carefully as it has a narrower reception angle. You may be lucky to live in a part that is more protected by the surrounding hills, so storms will have less windage effect.

T
Taz Bradley
Friday 25 July 2014 8:44PM Helston

Thank you for that - I too was a grockle up until recently and made the move more permanent... Thanks again..

T
Taz Bradley
Friday 25 July 2014 8:51PM Helston

Previous occupants had a satellite dish - with hindsight we could have used that - but had humax free view so just ignored it... Will definitely be changing to freesat..... Thanks again both for the responses..

J
John Martin
Saturday 26 July 2014 3:46PM Grantham

jb38: Thanks for the advice, we might have to do that. We have an engineer coming out on Monday, so we'll see what they say.

J
jb38
Saturday 26 July 2014 8:58PM

John Martin: Best policy!, maybe you could post an update with regards to the outcome of the visit, as I will be interested in that said by the engineer.

If though by any chance the reception problem channels referred to have now reverted back to normal? then this is liable to create a problem for the engineer, that is unless he is fully acquaint with the reception situation in your particular area, as if he isn't!, then he will up to a point be working in the dark if said problem channels are indicating well above the lower threshold cut off level.

However, if you look at the blue box on the right hand side of your posting you will see a selection of choices, click on the fifth item down "J's DigitalUK tradeview" this then taking you onto the trade reception predictor that will enable you to view the details of the reception expected from the transmitters that cover your area, namely Waltham and Belmont.

As you will no doubt see Belmont is green all the way, whereas a variable level of reception could be expected from Waltham on SDN (C29) and also similar from COM7 (HD Mux), the low powered (5Kw) L-NOT Mux also being in the category of variable.

By the way, if you hover your mouse pointer over each of the Mux channel numbers (under N) the ERP (power) that the Mux channel is operating on will appear.

E
Edward Cunningham
Monday 28 July 2014 10:49AM Blyth

Do unused Sky Boxes have a value? I will have two Sky + HD which will have their Sky signals cut next month.... I would like to pass them on to friends for a small charge but know not a lot about the position of the viewing card.. If I leave it in place can a new owner receive some service via the boxes or must they re-subscribe to a pay for view service?

You advice and comments would be appreciated.

Briantist
Monday 28 July 2014 1:30PM

Edward Cunningham: Hi. Without a subscription the Sky+HD boxes revert to being non-recording HD boxes.

Given that anyone who doesn't have Sky can take advantage of the "free dish and box offer", there isn't much to be gained for someone unless they have a use for a non-recording but otherwise HD Sky box.


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