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Thread ID: 120360	2011-09-05 09:39:00	Freeview Signal Quality	sahilcc7 (15483)	Press F1

Post ID	Timestamp	Content	User
1228963	2011-09-05 09:39:00	We currently have freeview setup on 2 TV's. The picture was noticeably better before we moved houses. At our old we had our UHF connected directly to the freeview box. At our current house, we have our aerial connected into the roof into a splitter which then sends the signal different ways (3 rooms have TV jacks). To improve the quality of our TV's in both rooms, could I disconnect one signal to the room we don't need? Any other ways to improve signal quality on the TV's? And I have never actually been up in the roof (Only a friend has) so will there be 2 different spitters for Sky and UHF? And what exactly do I need to unplug? TIA	sahilcc7 (15483)
1228964	2011-09-05 09:43:00	Being a digital signal you won't get better or worse reception. What will happen is it will either work or it won't. Or you may get the picture freezing, pixelating and breaking up if you don't have enough signal but it's not like the old analogue signal which would get ghosting and snow etc. Are you sure you have got Freeview|HD and not the analogue channels? You can get the EPG?	CYaBro (73)
1228965	2011-09-05 09:49:00	In one room the quality is good and quite poor in the other one. The room we don't use has better quality, so if I disconnected the not needed one and plugged in the one we need improving, would that improve quality? I've seen it done before at this same house when we first moved in, but the Sky person stuffed it up. (And also left messy wires hanging out, so hope to get rid of them also.) And also, the person who came over and set up the jacks for better quality, said there was an amplifier up there.	sahilcc7 (15483)
1228966	2011-09-05 09:50:00	I have heard that the more you split an un-amplified RF (VHF/UHF) signal from a single aerial, the weaker it gets, so you probably need an amplified splitter (or less aerial connections (to TV's etc), or more aerials ;)). Aerial distribution amplifier This allows you to divert your TV aerial signal to several rooms. You connect the aerial lead to the input socket and then run extension leads from the output. Because the signal is amplified it can be split without becoming weaker. If you want to split it just two ways, and have a strong signal from your rooftop aerial, you may not need to go to the expense of one of these. From here freeviewnz.tv	feersumendjinn (64)
1228967	2011-09-05 09:54:00	What do you mean by poor quality? As I said in my first post, if you are correctly tuned in to Freeview|HD (or Satellite for that matter), the picture will either be perfect or it won't be there at all. Changing cables or unplugging things isn't going to make a difference to picture quality. If you weren't getting any picture at all then it's a different story. Edit: I just had a thought, do you have a freeview box at both TVs and you can watch different channels at the same time? Or do you only have one freeview box which feeds it's RF output signal to the other TV and you can only watch the same channel on both? Edit: What feersumendjinn is true in a way but let me say again, if you are sure you are tuned in to Freeview|HD, you will NOT get better or worse picture quality. If the signal from the UHF antenna was being split too many times and was too weak at the TV then you will get no picture at all. If you however are tuning in the analogue channels (ie NOT Freeview) then your picture would look like crap.	CYaBro (73)
1228968	2011-09-05 09:57:00	Hmm, okay must be just the aerial we have now, or different house. Would excess cable decrease quality? I've read on other forums that by removing the splitter and going straight from aerial to HD box, improved the signal (Possibly for analogue).	sahilcc7 (15483)
1228969	2011-09-05 10:08:00	I think you'll find the RF signal is still transmitted as a analogue signal (frequency or amplitude modulated) but encoded digitally (on=1, off=0), which is why you need a decoder/STB. Changing cables or unplugging things isn't going to make a difference to picture quality. In fact it will, the weaker the signal the more corrupted is the decoding (more bits missing/dropped), resulting in blocky interference and/or stuttering.	feersumendjinn (64)
1228970	2011-09-05 10:12:00	Yes excess cable could decrease picture quality on analogue signals. On a digital signal the picture would be perfect or it would not be there at all - there is no middle ground of bad picture quality on a digital signal. The same goes for a splitter, the Freeview|HD picture will either be perfect or there will be no picture at all. I did a Freeview|HD install a couple of weeks ago and found that the TV was not getting any digital signal so no picture at all. Climbed into the ceiling and found an old splitter that was not needed so removed it. Tried TV again = perfect picture.	CYaBro (73)
1228971	2011-09-05 10:19:00	I think you'll find the RF signal is still transmitted as a analogue signal (frequency or amplitude modulated) but encoded digitally (on=1, off=0), which is why you need a decoder/STB. Doesn't really matter how it is transmitted (I don't know the technical aspect of that) but what I am saying is true. With the digital Freeview|HD signal you will have either a perfect picture or no picture at all - there will be no poor/bad picture quality. There could be other factors that are making the picture look bad like the cable going from your STB to the TV. As this is now an analogue signal this cable could be causing problems. If you have the STB connected by HDMI this won't cause picture quality problems though. sahilcc7 can you confirm that you are in fact watching Freeview|HD? Can you view the electronic program guide? Does each TV have it's own freeview box? How are they connected to the TVs?	CYaBro (73)
1228972	2011-09-05 10:28:00	I think you'll find the RF signal is still transmitted as a analogue signal (frequency or amplitude modulated) but encoded digitally (on=1, off=0), which is why you need a decoder/STB. In fact it will, the weaker the signal the more corrupted is the decoding (more bits missing/dropped), resulting in blocky interference and/or stuttering. That's what I said in my first post. That's not really bad/poor picture quality unlike an analogue signal that gets snow or ghosting. It's similar to what happens with Sky if you get rain fade, sometimes the picture is still showing but it freezes and breaks up and isn't watchable at all.	CYaBro (73)
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