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Want better aerial to Freeview transmitter terrain plots? Check out UK Free TV!

UK Free TV now has improved terrain plots, which show the line-of-sight between the aerial on the roof and the digital television transmitter. In addition to this, there are several other bug fixes.

UK Free TV now has improved terrain plots, which show the line-
published on UK Free TV

The new terrain plot system (click here to see an example) has these features:

The images now have increased vertical size to make the diagrams easier to read.

The diagrams now have a proper vertical and horizontal scale, with grid lines in both directions.

For a chosen location, all the diagrams now use the same horizontal and vertical scale. The receiver location is always on the left hand side (the old version was centered).

The receiver aerial height, the transmitter mast ground level and transmitter element heights are show down the right hand side.

The compass baring (including the baring in degrees from north) is shown along the bottom of each diagram.

The line-of-sight is shown as a blue line, unless the line-of-sight is interrupted, when the line is red.



The line-of-sight now curves (a bit like a washing line) to show the effect of the Earth's curvature. In the old version, the line was shown straight, with the ground level adjusted. In the new version you can read off the true height above sea level from the diagram.

Some of the "friendly" visual style has been retained, with the blue representing the sky, green (fading into dark green or brown) the ground level. Also retained are the same symbols used on the maps for the location of the receiver (a house on a yellow background), and transmitter (a Freeview, Freeview Light or Saorview logo).



A few bug fixes

I have fixed few other problems:

The "Opensearch" code wasn't working, which meant if you tried to search UK Free TV from the search box in Internet Explorer or Firefox (or similar Chrome feature) you didn't get any results. This is now working as expected.

Some DAB stations were not showing up. A DAB station that had a hyphen in the name would be missing from the DAB pages. These stations now show up correctly.

There was an issue with lower case in radio and DAB transmitters page links. This has now been fixed.

The UK Free TV comments by location page is working again.

Digital UK engineering information is being processed again.

All questions
My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound o1
Can I stop paying Sky and use my satellite receiver to get Freeview ?2
What can I do when my Sky Digibox says 'No Signal' or 'Technical fau3
My Sky box has a "no signal message" - what do I do?4
How do I change the RF output channel on a Sky Digibox?5
In this section
Seeing something different? We are doing A/B testing on a new Material Design1
Please share your thoughts about UK FREE TV2
The next 50 things on UK FREE TV. What would you like to see? 3
UK Free TV now uses friendly web addresses4
Best ever emails and improved menus on UK FREE TV5
Use the Knowledge base to find answers to your technical problems6

Comments
Tuesday, 7 May 2013
M
Mark Heselden
6:07 PM

The terrain plots are fine for the transmitters listed at location 'Site settings'. But can a terrain plot be obtained somehow for other nearby transmitters not listed, which are also receivable? (+51.14,-000.04) 

link to this
Mark Heselden's 21 posts Bronze Bronze GB
Wednesday, 8 May 2013
K
Kevin Dodd
10:17 AM Gillingham

I've suddenly lost my ITV channels on Freeview.
It's been fine till now.

My postcode is ME7 3NS.




link to this
Kevin Dodd's 1 post GB
Kevin's: Freeview map terrain plot frequency data R&TI Service digitaluk trade DAB coverage
Briantist
12:15 PM

Mark Heselden: The listed transmitters are all those that can be received (with an aerial 10m above ground level). I'm not sure what benefit there is listing other transmitters?

The system did originally show all transmitters within the radio horizon, but it just confused people.

link to this
Briantist's 38,757 posts Owner Owner GB
Ian
12:37 PM

where do I find the terrain plots?

link to this
Ian's 500 posts Gold Gold GB
Saturday, 11 May 2013
N
Nick Anderson
10:17 AM

Is it possible to publish a list of all the forthcoming channel 8 freeview local stations, their coverage area and approximate on air dates? I'm sure this would be much appreciated as their is a strong demand for local news programmes.

link to this
Nick Anderson's 58 posts Bronze Bronze GB

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