Freeview reception at MK45 2NU
Terrain between MK452NU 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.Advanced options
Show good and blocked paths from MK45 2NU 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)
Monday, 20 November 2023
R
Roger Barsby7:27 AM
Redditch
Having problems with signal break up. Our TVs have been fine until a few months ago when we started getting channels breaking up at night, but they would be ok during the day - specifically channel 17 really and channels in that block. Had a tv guy over who fitted a new aerial on a taller pole, but still seems a problem. Last night couldn't get anything even bbc1. On the tv it says we have signal but the quality bounces up and down. We are in Redditch tuned to Sutton Coldfield.
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Roger's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
C
Chris.SE2:24 PM
Roger Barsby:
As there are several transmitters (some nearer) that you might receive in your locale, although Sutton Coldfield is predicted to be far the strongest, it may be worth checking in your TV's tuning section that you are tuned to the correct UHF channels for Sutton Coldfield.
All the multiplexes are C43, C46, C40, C42, C45, & C39 that's in the order BBCA/PSB1, D3&4/PSB2, BBCB HD/PSB3, SDN/COM4, ArqA/COM5, & ArqB/COM6. (C means UHF channel).
For which TV channels - LCNs - are on which multiplex, see
Channel listings for Industry Professionals | Freeview
IF you retuned at any time when you had no signal or badly pixellated pictures you may have got tuned to another transmitter received off side-lobes of the aerial!
It's NEVER recommended to retune if you were correctly tuned when you have no signal or badly pixellated pictures - you cannot tune to a signal that's not there or can't be decoded.
You MIGHT get the Local L-BRM multiplex on C48 but I suspect it will be very variable to poor, if at all.
Could you post the Signal Strength and Quality figures for each multiplex's UHF channel which might help identify possible causes of the problem.
As detailed on the Sutton Coldfield transmitter page, it has been on Planned Engineering for several weeks which won't be helping in your situation as your local terrain doesn't give you clear line-of-sight to Sutton Coldfield, so the taller pole for your new aerial may be of some help.
I hope that was a Group K aerial that was fitted as there are a number of mobile phone masts near you which may be new or have been upgraded to use 700MHz and you could be getting interference.
I hope that installer got out his spectrum analyser to check!
You should have received a postcard - https://restoretv.uk/post…ure/
We know many cases that haven't but should have. If you haven't got a 700MHz (5G) Filter get in touch with RestoreTV to request a Free one.
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Sunday, 26 November 2023
L
Lewis9:12 PM
Pontypridd
Hi
Can I use a loft aerial in Church Village to get full Freeview channels from a main mast in Wenvoe?
If so what aerial type?
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Lewis's: mapL's Freeview map terrainL's terrain plot wavesL's frequency data L's Freeview Detailed Coverage
C
Chris.SE11:29 PM
Lewis:
Despite the fact that there is a huge hill in the way between you and Wenvoe starting about 1/2 mile from you with a large peak at around 2 miles out, nevertheless the Freeview & BBC's predictors suggest you should get a good signal from Wenvoe so it would be worth a go.
You'd need a high gain Group K aerial, with its rods horizontal pointing at compass bearing 170 degrees (10 degrees E of due S).
Something like https://www.blake-uk.com/56-element-log-periodic-group-k-aerial-new-double-element-design.html may do the job.
If you already have a Group K or B aerial give it a go. If it's not high gain you may get weak signals.
The advantage of the Group K is 1) Very important - it will give you a great deal of protection from possible mobile mast interference from new/upgraded phone masts & 2) should you get unreliable signals from Wenvoe you can use it to receive one of the two local relays you should be able to receive. (Group B is no good for the relays).
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Sunday, 3 December 2023
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