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Major update to UK Free TV Freeview reception prediction system

UK Free TV now has a new, improved system for showing the transmitters you can receive signal from - including a new graphic display system to show cross-section diagrams - and it now includes Saorview (free terrestrial TV in Ireland) transmitters.

UK Free TV now has a new, improved system for showing the trans
published on UK Free TV

UK Free TV will celebrate ten years of helping people with their television reception this summer, and today's changes to the reception prediction system is the third major change to the system in that time.

As before, you can still enter a UK postcode, national grid reference or a pair of latitude and longitude co-ordinates into the box at the top right corner of every page here on UK Free TV to ask for a reception prediction.

The reception information page is now divided into three sections, with a toolbar to select the three ways of viewing the information:


The mapping page shows the transmitters that you can receive a signal from, assuming that your TV aerial is mounted 20 meters above ground level.

The coverage area for the transmitter that provides the strongest signal for the location is shown, and you can single-click on transmitters to show other coverage areas.

Terrain plot

The terrain plot shows each of the masts that a signal can be received from, with the most powerful signal (from Multiplex 1, PSB1 or Saorview 1) shown first, with the rest in order.

You can click on the plots to see full details for the transmitter. The baring and aerial position is shown in the top right hand cover of each plot. See Transmitter symbol improvements on UK Free TV for full details of all the transmitter symbols used.

These graphics are using HTML5 canvas and will not display in very old web browsers.

Full details

As before, you can also view the technical information about reception in one of five ways: by direction, by signal strength (again, strongest first), by transmission frequency (lowest first), alphabetically by the service names or the alphabetically by transmitter names.

As before, you can click the "Aerial type" selections on the page to see the effect of using different aerial of different group types on your reception, and the date tabs to see past and future changes to reception.

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Monday, 5 March 2012
Mrs Ada Alison
4:28 PM

Have a Sony Bravia 0KDL-20S2030 and am having difficulty getting a picture from the ITV network. Could you advise me please???

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Mrs Ada Alison's 1 post GB flag
Mrs's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
7:04 PM

Bug report: if I click on a transmitter page, the Site Settings box in the top-right corner shows the wrong postcode.

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Thomas's 1 post GB flag
Thomas's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
7:08 PM

(sorry about the double post, browser hiccuped)

Bug report: if I click on a transmitter page, the Site Settings box in the top-right corner shows the wrong postcode. For example, if I go to Freeview on Rowridge TV transmitter | - independent free digital TV advice I see PO14 4NP instead of my PO16 postcode. (PO160LZ)

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Thomas's 5 posts GB flag
9:26 PM

Nice job, Briantist. Spotted one minor typo on the legend for the maps: Fault/Engineeing (missing r) (51.3880,-2.3887) 

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BigJacko's 1 post GB flag
Tuesday, 6 March 2012

9:20 AM

BigJacko: Thanks. Sorry about the missing letter, I have fixed that.

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Briantist's 38,915 posts GB flag

9:29 AM

Thomas: I've fixed that issue. Thanks for pointing it out.

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Briantist's 38,915 posts GB flag
Alan Baker
10:36 AM

Hi I am experiecing a problem with receiving BBC programmes on mt top-up tv box . It seems that the signal strength of channel 45 drops every evening at around 1800hrs. I live in west end near southampton SO183jz and because of terrain have to tune to North hants and berks ,hannington transmitter. This problem has only occurred since the switch over. Can you help?

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Alan Baker's 1 post GB flag
john pateman
12:58 PM

Since I retuned after 1`st March 2012 I have been unable to get a good quality signal for BBC1.
post code GU6 7hn using rowridge transmitter.

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

1:42 PM

john pateman: What was your reason for retuning? Rowridge does not switchover until tomorrow.

However, the first stage of switchover at Midhurst was 29th February. From your location Rowridge and Midhurst are in the same direction. The distance to the former is for times that of the latter which is 21km or 13 miles.

Are you sure that you are not receiving from Midhurst instead?

Perhaps your receiver has tuned to the wrong transmitter for BBC (and maybe others even though they seem stable or maybe not).

The predictor suggests that you will get a good signal from Hannington which switched over in February (and is therefore on full power).

Go to the signal strength screen whilst BBC One is on and check that the UHF channel is 55 for Midhurst. For Hannington it will be 45 and Rowridge is 24.

Do the same for ITV1. For Midhurst it is C65 to change to C61 on 14th March. Hannington's is on C42 and Rowridge's is C44.

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Dave Lindsay's 5,724 posts GB flag
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