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My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound o

My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound or the channel line up is wrong

My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+
published on UK Free TV

To deal with the problem you must clear the channel list completely and then rescan - if your box has it in the menus, please the 'installation menu' to do an initial scan or a reset to factory settings or First Time Installation. You MUST delete the entire existing list of channels. On most boxes this technique can be also be used:

Try this:

1) unplug your Freeview box (or idTV) from the mains;



2) unplug the aerial from the Freeview box by disconnecting the cable from the 'RF in' socket;



3) wait 30 seconds;

4) plug Freeview box (or idTV) mains back in;



5) do a complete scan for channels - it will fail without the aerial. (This may be in the installation or initialization menu, and is distinct from any 'add channels option'). Once this is done your channel line up should be empty;



6) reinsert aerial by reconnecting to the 'RF in' connection;



7) do a complete scan for channels again.



The Freeview channel line-up provided by six "multiplexes" - each of which carry five or more TV channels, radio channels, text services and EPG data. In this diagram each ROW represents a multiplex. If you are still missing a whole multiplex (ie everything on the row) you may need to replace your aerial with a wideband type, purchase a larger aerial or you may have interference from a VCR, games console, Sky Digibox or similar.



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Comments
Monday, 15 January 2018
M
MikeB
11:16 PM

RayB: If you've changed the TV, and your still not getting HD channels, then logically its:

a) The problem lies with your system

b) Your not tuned to a transmitter that carries HD channels (which is impossible)

c) The HD channels are being lost, perhaps because of signal strength, or the mux is being blocked in some way, or the aerial itself.

I'm not sure what the problem is, but there are some clues. The 100% signal strength makes sense if your tuned into Welwyn (and excludes a loose connection, etc), but obviously thats a very limited service.

I'd ask your neighbours what services they get - the plot seems to think that Hemel Hempstead has a big problem with signal path, but Digital UK reckon that Crystal Palace/Sandy Heath are doable. You might need to move the aerial, but if yours is pointing a different way, and they get a full service, then it might be worth a try.

HD channels can blank out if there is too high a signal, but whats strange is that you dont even seem to be picking any up.

I'd start with looking at the the aerials in the area. I just looked on Google maps, and most of the aerials seem to be pointing vaguely east - which would mean Chrystal Palace. Try a manual tune and see if you can pick it up, although why the TV isn't picking it up first anyway is a mystery. It might even be worth tuning it via someone elses aerial, and then see if that works with your own system!

Thats the best I can suggest, but I'm sure people more expert than me can advise better.




link to this
MikeB's 2,370 posts Platinum Platinum GB
S
StevensOnln1
11:17 PM

RayB: If you are seeing a signal strength of 100% then you are likely suffering with signal overload (the tuner is being deafened due to being shouted at). Search for the article "Too much of a good thing" on this website.

link to this
StevensOnln1's 1,132 posts Gold Gold GB
Tuesday, 16 January 2018
J
J Morris
12:55 AM

BBC channels often break up (pixels disintegrate), plus sound goes at one side of house, yet work well on the other. We are near to local transmitter at Kings Weston, with Mendip and Wenlove fairly near too. Can anyone explain? Our aerial on faulty side is relatively new. BBC Bristol say no reported transmitter problems currently.

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J Morris's 1 post GB
M
MikeB
9:02 AM

J Morris: Check the signal strength of the TV with the problem. Signal strength could be too high or low - TV tuners can have different sensitivity, and of course the wiring to a particular TV ight be at fault.

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MikeB's 2,370 posts Platinum Platinum GB
MikeP
11:36 PM

J Morris:

Depending on your exact location in relation to the local transmitters you should get a good signal reception. But the only way to tell is to put your full post code into this website to bring up the series of blue boxes below your posting. Then you, and we, can see where you are and whether there are obstructions between you and the Kings Weston Hill or Mendip transmitters. Wenvoe is just the other side of Cardiff and carries BBC Wales, S4C, etc rather than the local regional services for Bristol, etc so would probably not be ideal unless you speak Welsh.

You should also carry out a signal strength check, as MikeB suggests. You need between 60% and 85% - not more and not less. If you have more then search for 'Too much of a good thing ...' on this website. It is also worth checking all your aerial leads and connections as a little corrosion on the contacts can play havoc with the signals.



link to this
MikeP's 1,741 posts Gold Gold GB
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