Picture breaking up on new TV

paulpud

I currently have a TV aerial mounted on the chimney wired to a 4-way powered booster/splitter unit which feeds TVs in the lounge, dining room, kitchen and bedroom. Today I removed the old tv and freeview box from the kitchen and replaced them with a shiny new Samsung LED TV with a built in freeview tuner. All is well apart from several channels being severely affected by the picture breaking up (ITV, C4, ITV+1, More 4, E4, Film 4 and a couple of others). All the other TVs are fine and we also had no issue with the old tv and freeview box set up. The new tv has a self diagnosis section which is showing a signal strength of 58 on the affected channels as opposed to 78 on the good channels.

I am assuming that the tuner in this tv simply isn't as sensitive as the one in the old freeview box and that I'll need to upgrade the tv aerial and its cable down to the booster/splitter unit to rectify the problem, but wondered if anyone else had suffered a similar problem and how it had been sorted out.

thescouselander

I've noticed some receivers seem to be less sensitive than others. Using splitters / boosters really isn't a great way to go anyway.

Have you tried running the aerial directly into the TV to see if it works then?

Hedgehog99

Are you receiving channels from two transmitters? When I do a re-tune on my parents' freeview, I then have to swap round the regional BBC 1 and ITV 1 channels back to 1 and 3 on the remote because the auto-tune chooses the stronger (but ironically not local) signal for channels 1 and 3.

You could try going up through your channel numbers to see if you find duplicates with a stronger signal that you can then re-assign their proper channel numbers on your remote.

NeverInDebt

It appears you may have issues not getting one of the freeview multiplexes well
http://www.ukfree.tv/transmitters/multiplexes

Multiplex PSB2 - D3+4 - Digital 3 and 4 Ltd




ITV 3 XXXXXX
STV 3
UTV 4
Channel 4 4 XXXXXX
S4C 5
Channel 56
ITV 28
Channel 4 (Wales) 10
ITV 3 (Channel Islands onIy)13
Channel 4 +114
More 415 XXXXXX
Film 428 XXXXXX
E4 33 XXXXXX
ITV +1 33
STV+1 33
UTV+1

http://www.radioandtelly.co.uk/freeviewhelp/missing.html
http://www.radioandtelly.co.uk/reception.html

paulpud

Thanks for the suggestions. It does seem that it is that particular multiplex that is the issue here. I think I may experiment with bypassing the splitter and connecting the tv in other rooms but it does seem the eventual solution may be an aerial upgrade. I do get a very rare glitch on the other tvs in adverse weather conditions so it might not be a bad idea anyway.

JustinR1979

Do you know the transmitter location?
What group of aerial you have/need?
Have recently spent as lot of time looking into this - I'm on band A transmitter and had a wideband aerial, which is the worst combo/scenario.
Online you can find angle of transmitters from your location.
Parents live near me, and had aerial man round and he fitted a wideband, and then a filter for the 4g.
I spent £32 sorting mine, they spent £115 with the 'expert'.

paulpud

Well there has been a development.

Last night I switched the tv on with the intention of a bit of experimentation and found none of the channels were working, just a 'weak or no signal' message on screen.

I took it off the wall and into the garage where the aerial cable comes into the splitter and plugged the aerial directly into the tv and still had no channels. So I stuck it back on the wall, went into setup and auto installed the channels again. Guess what? Every single channel working with no sign of breaking up, and more channels than I had previously.

Strange.

maninthestreet

What make and model is this TV?

JustinR1979

Hopefully it will last, and you won't have to keep retuning like my mum did due to having the wrong aerial.

paulpud

The tv is a Samsung LT19C300, a neat little 19" LED model which is just right for the kitchen.