[waynesworld]

Have bought a Grundig 22" LCD for my daughters bedroom to replace her CRT portable. PQ for the CRT on analogue and Sky are good , but on the LCD PQ is good on analogue but poor on Sky and the signal strength for Digital channels is showing at between 38 and 50%. The TV is fed from a splitter amplifier in the living room and is at the end of a long run is it possible that the signal needs a further boost to improve the PQ on Sky (although it was god on the CRT) and the signal strength on Digital. If so what can i use to do this. Cheers WW.

[niall campbell]

dont think anything will help

if your getting a digital signal then its probally as good as your going to get, and the picture would freeze and pixallate

probally actually seeing a set beforehand with different signals may help you

[bobcar]

Quote:

Originally Posted by niall campbell

dont think anything will help

if your getting a digital signal then its probally as good as your going to get, and the picture would freeze and pixallate

probally actually seeing a set beforehand with different signals may help you

I assume the "digital" is via the Sky RF out.

[waynesworld]

The Freeview(digital) PQ is good despite the low signal strength , the problem is with the Sky PQ , the answer to your question is , i think so, all the TV's in the house get there signal from a splitter amplifier and i think they come from the RF2 on the Sky boxCheers WW.

[Tatty!]

WW is the feed going into the amp before it goes throught the skybox or after? It's just that if it's before, then the signal goes through the skybox then out through RF2 the signal will get weaker.

Also for some reason alot of tube set's picture qualities are usually better showing digital and analogue sources then lcd's do, you could always try to use either a more powerful booster to replace the one you have or use a 2nd booster, but it could make the signal weaker.
Check the connections too, if they have not been fitted right, they can cause a slight signal drop out aswell.

[waynesworld]

Its coming out of the Sky box and then into the amp/splitter and then to the TV. It is one of 4 T.V's fed from the amp all the others are OK , but this is the furthest away , have checked connections and they all look good. If i was to put a 2nd booster in what type is best and where. The coax cable is extended due to moving the T.V to the other side of the room.Cheers WW.

[chrisjr]

What cable are you using for this run and how many joins are there in it?

You should be using a single length of good qaulity satellite grade cable with decent metal connectors at each end. And obviously no joins and as short a run as is possible - even if this means taking the cable through the wall and up the outside of the house!

Less good is the cheap brown coax cable you can get from places like B&Q for a few pence per metre. Even worse is the thin horrid white stuff that comes with some TV extension kits. That stuff is barely fit to make a 1m hook up lead from VCR to TV for example.

Adding extra amplification may not give you as much improvement as you hope. if you can beg steal or borrow a booster then by all means try it. Place it at both ends of the cable run (not at the same time obviously ) to see which if either gives the best result.

But if the cable is not up to spec and has a join or two in it then that would be my first priority to change.

[niall campbell]

Quote:

Originally Posted by waynesworld

Its coming out of the Sky box and then into the amp/splitter and then to the TV. It is one of 4 T.V's fed from the amp all the others are OK , but this is the furthest away , have checked connections and they all look good. If i was to put a 2nd booster in what type is best and where. The coax cable is extended due to moving the T.V to the other side of the room.Cheers WW.

at the amp swap over one of the outputs with the one room which is giving you the problem

incase the amp is faulty with one of the outputs

then check the wire, and we like satellite cable for long runs and one piece as suggested

[Scorpio]

Quote:

Originally Posted by niall campbell

at the amp swap over one of the outputs with the one room which is giving you the problem

incase the amp is faulty with one of the outputs

then check the wire, and we like satellite cable for long runs and one piece as suggested

Similarly, move the grundig to one of the RF outlets that seems to be providing a good reception and digital service.

If the problem moves, it's the set - if the picture is good then you have verified that it is the cable run.

Rgds,
Scorp

[waynesworld]

Thanks for the replies.The cable to the room is good quality cable , i was assured by the guy who ran it who was a friend, because i moved it i extended it with the white extension cable, which by the sounds of it could possibly be the problem. Will replace this anyway , then give it a go. What is the best cable to buy for this ? If not i will try all the other suggestions.Cheers WW.

[waynesworld]

Have connected TV without the extension cable and picture is spot on , so i need to buy some decent cable to make it up any reccomendations for the cable and can it be bought from Maplins or somewhere similiar. Cheers WW.

[chrisjr]

Go for a low loss double screened satellite grade cable. You can certainly buy such cable from Maplin (Maplins was a fictional holiday camp invented for a popular TV sit com - not a retailer of electronic/electrical equipment )

Something like the FT125 cable may suit.

http://www.maplin.co.uk/Module.aspx?ModuleNo=278

[waynesworld]

Quote:

Originally Posted by chrisjr

Go for a low loss double screened satellite grade cable. You can certainly buy such cable from Maplin (Maplins was a fictional holiday camp invented for a popular TV sit com - not a retailer of electronic/electrical equipment )
Something like the FT125 cable may suit.

http://www.maplin.co.uk/Module.aspx?ModuleNo=278

Thanks for the link. I've always called it Maplins even though it s only half a mile from my house Hi Di HiWhat about connectors i guess F are OK. cHEERS WW.

[chrisjr]

Use whatever connectors are fitted to the amplifier and TV. Most likely Belling Lee types. Only use F connectors if that is what is fitted to the equipment you are connecting.

Basically you want to avoid at all costs involving extra connectors or adapters. Every unnecessary connection adds a little bit of signal loss. So if you cannot plug the cable directly into amplifier or TV change the plug so you can

[Scorpio]

Presumably he went to maplin's................?