All posts by Michael Perry
Below are all of Michael Perry's postings, with the most recent are at the bottom of the page.
Ken Gibbs:
I suspect that the multiplex that carries the Dave services has changed but it will still appear on the original 'Logical Channel Number' (often referred to here as LCN), so you will see no difference as you have done the retune. If you had not retuned, you may well have lost Dave.
| link to this comment |
MikeB:
And 'fact' are open to interpretation and discussion - that is the scientific method.
Enough already!!
| link to this comment |
Michael Jordan:
If you give us a full post code, a map becomes available that shows you and us where you are in relation to the TV transmitters and also whether there are any fairly local mobile transmitter masts, one of which (if any) could be a 4G service. If there is such nearby, a filter should help. They are free from at800, just contact them via their website, https://at800.tv/contact-us/.
| link to this comment |
Peter Hewis:
If you give a full post code that will enable you, and us, to determine which is the best transmitter for your location.
I'm not aware of there being any problems with the main Oxford transmitter at present.
| link to this comment |
Ali Haouas:
What free services are you trying to watch? What equipment are you using? Could you give us your post code in fill so we can determine which Freeview transmitter is suita ble for you.
| link to this comment |
Sandy Heath (Central Bedfordshire, England) Full Freeview trans
Tuesday 8 March 2016 10:03PM
Trowbridge
Tuesday 8 March 2016 10:03PM
Trowbridge
Tony:
It could well be because of the transmitter work being carried out at present. During that, it is not uncommon for the signal to be weaker than usual, causing some pixilation.
Do *not* try a retune at present as you would likely lose channels.
| link to this comment |
What does "Full HD Ready" actually mean? | UK Free TV - News (6
Wednesday 9 March 2016 9:52PM
Trowbridge
Wednesday 9 March 2016 9:52PM
Trowbridge
I Logan:
The problem has been created by marketing departments using the term 'HD Ready' to indicate that the screen is capable of displaying HD pictures. It does *not* mean the TV set is capable of tuning in to HD transmissions though. It is that factor that causes the confusion and is typical of marketing not having thought through the related issues.
TV sets that have a DVB-T2 tuner, and so are capable of tuning in to HD services, *are* backwards compatible with non-HD transmissions - that is what backwards compatibility means in this and in computer terminology. (In the computer world, the release of Windows 10 has caused many people to have compatibility problems as their equipment is not capable of running W10 and many of the drivers needed to able to work with W10 are not available at all. So W10 is *not* backwards compatible' in your terms.) I suspect what you seek is 'forward compatibility' but that can never be quaranteed as new methods of transmission and encoding cannot be predicted.
(Another example of things that are not backward compatible is the change away from leaded petrol. Many older cars were not designed to run on unleaded and where possible need to have major modifications to the engine, particularly the exhaust valves and seats. Additives were available but have been withdrawn.)
The simple solution is to retain your current TV set and connect an HD capable 'set top box' and use that instead of the SD tuner in the TV. Alternatively, you could consider replacing your energy hungry TV with a modern HD capable (not just HD ready) that means fewer cables and uses considerably less electrical energy than a plasma set.
| link to this comment |
GMAN73:
100% signal strength is far too high! At that level most HD capable TV sets or set top boxes with claim there is no signal as it's so strong it 'swamps' the tuner system. The idea is more like 50% to 70% for SD and HD services.
COM7 is an HD multiplex so with signals that strong you are very unlikely to get any of the channels on that multiplex. Search on this website for "too much of a good thing" and see what is generally accepted as good advice, namely reduce the signal strength with an attenuator.
A full piost code would allow us contributors to determine your reception conditions and perhaps give more advice.
| link to this comment |
GMAN73:
Under no circumstances should you touch anything in the trunking outside - it is almost certainly *not* the aerial cable for the communal aerial system but could be a Virgin Media coaxial internet feed. In either case, it is not your property and anything you do could cause serious problems for others.
Please also check whether you are allowed to fit an aerial yourself. Many property owners will not allow tenants to add such plus there are planning issues you should check, the rules in Scotalnd vary slightly from those pertaining in England and Wales. That information should be available either on the internet on a website operated by your local council planning department, or else try talking to them directly and ask about fitting aerials having given them full details of where you live and the the property.
| link to this comment |
Wednesday 2 March 2016 9:25PM
Maldon
Sam:
This could be perhaps due to either too much signal strength or too little. You are 37 km from the Wrekin transmitter so it could be either.
Please check on your TV what the signal strength shown for one of the channels that are breaking up. The ideal strength is between 50% and 70%. If it is less than 50% then the signal is probably too weak - you may have a fault with your aerial or the cabling. If it is above 70% then it is priobably too strong and you need to reduce that by fiutting an attenuator - you can get variable ones so you can adjust it for the best overall effect.