Briantist: @fairtelecoms @mookigoose http://t.co/bdXVWtMcls cornelli has posted My name is cornellia am from UK I live in Canada I have been married Briantist: @fairtelecoms @stevbu @jaynefishwick @hotmail.co.uk @kari_leeann http://t.co/fU9QzVdW7p Dave Lindsay has posted sally Did you get from at Briantist: @fairtelecoms @stevbu @jaynefishwick @hotmail.co.uk @kari_leeann http://t.co/HQklyPT3fy sally has posted I only get bbc 2 3 etc No itv No Briantist: @fairtelecoms http://t.co/6dTMuwVd65 Charles Stuart has posted MikeB refers to the distance that one should sit from one 039 s TV to get Briantist: http://t.co/B4L0VIMeCy trevorjharris has posted If the BBC is spending more on programming than Sky just goes to show how inefficient is Briantist: http://t.co/DgbdJIZhZu jb38 has posted J Peter Wilson Many thanks for your comprehensive update with regards to the equipment used in TV Briantist: @fairtelecoms @stevbu @jaynefishwick @hotmail.co.uk @kari_leeann http://t.co/KpcBe9tTqq Dave Lindsay has posted sally That 039 s correct Briantist: @fairtelecoms http://t.co/xdPtH0hS09 Briantist has posted Briantist I 039 ve also done a write up here http www ukfree tv fullstory php Briantist: @fairtelecoms @stevbu @jaynefishwick @hotmail.co.uk @kari_leeann http://t.co/wg3uKSdjWp sally has posted The aerial is pointed towards we Briantist: http://t.co/TNQ1LkeZoZ am sure you know that in 2013 British Sky Broadcasting had an income of 7 255 million More or less exactly twice Briantist: @fairtelecoms @stevbu @jaynefishwick @hotmail.co.uk @kari_leeann http://t.co/PxuEjVgdui Dave Lindsay has posted sally It sounds like the Briantist: @fairtelecoms http://t.co/UdyDYCObe6 Briantist has posted I 039 ve done a little picture http ukfree tv styles images 2013 bbcvssky png Briantist: @fairtelecoms @stevbu @jaynefishwick @hotmail.co.uk @kari_leeann http://t.co/faWAxgfGD3 sally has posted On 514mhz i got no joy and on I Briantist: @fairtelecoms @stevbu @jaynefishwick @hotmail.co.uk @kari_leeann http://t.co/VJgWRVckGJ Dave Lindsay has posted sally A lot of TVs use in Briantist: @fairtelecoms @al1304 @dolphin5 @carlyroweis @domrobinson http://t.co/2D2lut6Jcc Dave Lindsay has posted MikeP That 039 s interesting the
Your ability of receive all the Freeview transmissions depends on the suitability of aerial
the design style,
the "group", and
its physical location.
Standard type - Yagi aerial
The standard type of TV aerial is known as the Yagi aerial. It is mounted on a pole, and consists of a rod with a reflector (shown green) at the back and many spiky elements (in grey) at the front. The connecting cable connects to the element nearest the reflector, known as the driver (shown in blue).
These Yagi aerials are directional and so pick up signals best from a transmitter that the rod points towards. The more elements the aerial has, the better it picks up a signal and becomes more directional.
A standard-type aerial is all that is required for analogue TV reception in most places. These antennae have between 10 and 18 elements and a single reflector. These are not recommended for new installations for good digital television reception, but will more often than not function perfectly in good reception areas.
Typically these aerials are designed to receive only some transmission frequencies - see "groups" below.
Digital High Gain
These aerials are designed for poor digital reception areas, and have two reflectors. For maximum signal strength, some digital high gain aerials have up to 100 elements. A more expensive aerial is only required where the signal strength is low, but can often provide Freeview reception where it might otherwise be impossible.
The CAI (that represents aerial installers) has four standards for digital TV aerials. The highest standard "1" is for homes on the fringes of coverage areas, intermediate standard "2" is suitable for use within the coverage area; minimum standard "3" is for good coverage conditions.
These aerials can be either wideband, or receive only selected frequencies - see "groups" below.
Grid aerials have been used to improve analogue reception in poor reception areas. They are generally unsuitable for Freeview reception, however some installations may work. Otherwise replace with a digital high gain Yagi aerial.
Indoor aerials are generally not suitable for Freeview reception. In areas of good signal strength it is often possible to receive some transmissions.
Loft mounted arrivals are not generally recommended for Freeview reception, as the roof tiles and plumbing will degrade the signal. Some compensation for this loss of signal can be made by using satellite-grade cable to connect the set top box to the aerial.
The best position for a TV aerial is mounted outdoors, as high from the ground as possible, pointing directly at the transmitter. The signal can be blocked by hills and tall buildings. It should be positioned away from any other aerials.
Horizontal or vertical?
The transmitter will either use vertical mode which requires the elements of your aerial to be up-down, or horizontal mode which requires them to be level with the ground.
Both analogue and digital television is transmitted the same group of transmission frequencies (known as channel 21 through to 68). A coloured marking on the aerial shows the group.
To create the best possible analogue picture, TV transmissions from adjacent transmitters have been designated to several different groups of frequencies. By using an aerial that receives only the channels in the correct group, the analogue picture can be kept free from interference.
To receive Freeview transmissions from the same transmitter it has been sometimes necessary to use frequencies that are not part of the transmitter's normal group. When this has occurred, the aerial will need to be replaced with a "wideband" aerial (also known as group W) - one that covers every group.
Hi All total novice so please bear with me! I have a caravan at the post code of MK19 7JP I have small digitalaerial. Its pointing in the same direction as all other aerials on the site about 86 degrees by my iphone! I can get most channels but the TV is saying the some are at 14% coverage and the channels stop, cut out and are not solid steady channels? I have checked all the cables and reconnected all the end tight but made no difference? Do I need a high gain aerial as some people on the blogs state?
Mark: You should be able to get good reception from Sandy (Anglia) on its three main Mux transmitters "if" your aerial is mounted on a normal pole in the same way as done in most caravan installations.
What you have said suggests that you are using an indoor (set top) type of aerial, and if you are that is not good enough at the distance you are from the transmitter, Sandy Heath being 26 miles away.
You don't really require a so called "high gain" type, as a standard log periodic aerial called a Log 40 is suffice, these being easy to mount as they do not have the usual large reflector on the rear.
Hi jb thanks for your help, the aerial is on a small pole about a foot long outside on the top of the caravan? It does how ever have a small splitter that connects 2 rooms so not sure if that maybe the problem?
Mark: A splitter of a non-powered type will drag a signal down, for a test try coupling the TV directly to the aerial, if you find its OK by doing that then purchase a powered two outlet splitter, as that will provide exactly the same signal strength to the two TV points, even possibly with it being slightly boosted!
I would normally have suggested Argos as a possible source of the splitter, but they have really gone downhill with their selections, only offering a SLX two way version @ £19.99, you can get one much cheaper than that.
Mark is it a static caravan if it is the splitter is normaly under the caravan. A splitter is ok as long as the signal is ok going in. A local aerial rigger could fix everything for you, it cost more than argos but you have someone to come to you and fix everything you.
Since Easter 2011 i have been unable to receive digital signals for the BBC channels , ITV ,C4 and C5 during daytime and early to mid evenings . Before this i was receiving signals fine. However , i am receiving these channels fine at nightime which indicates that my equipment is working fine . Should i assume that something or someone is disrupting my signal ? How do i go about resolving this. My neighbours do not have this problem.
steve: Reception predictor indications suggest that you should get good reception from Chatton (13mls)or possibly from Pontop Pike(35mls) although Chatton is the one you are most likely receiving, to check this go into the TV (or boxes) tuning menu / signal check area whilst on BBC1, and if its Chatton you will see Ch40 indicated, however if its Pontop Pike it will be Ch48.
Regarding your aerial, it should be pointing roughly to the left of North for Chatton, and if at all possible would be better mounted externally, even using a gutter mount, as the Chatton transmitter is transmitting on pre switchoverpower and will be doing until August of next year, so nothing will improve until then.
I live in London SW19, got new TV had problems with picture freezing so I upgraded my aerial from old type in loft to new Philex 48 element high gain widebanddigital aerial again in the loft. However i could not pick up BBc1,2 or BBC News24, so fitted a booster. Then i was able to receive BBC but lost ITV3 on Channel 10 & Quest on 38. I have disconnected all periferal freeview boxes so just new TV & new aerial & booster fitted. Any ideas, please?
Peter K: It depends on your particular location with reference to the distance from the transmitter, which on checking could be as near as 6 miles from Crystal Palace, as where problems are experienced at relatively close distances from a transmitter the use of a high gain aerial does not help the situation, and indeed can make it worse!
This is basically because high gain aerials generally have sharper pick up patterns, this meaning that any obstruction to the signal path will have a much greater effect than a lower gain (and broader pick up) pattern aerial, and to be factually honest about it, sometimes in these type of situations greatly improved results can be obtained with the simplest of aerials (absolute max of 10 elements) when used in conjunction with about a 15db (or even more) amplifier to compensate for the aerials low gain.
High gain multi-element aerials only really come into their own where poor reception is mainly due to sheer distance from the transmitting station, a type of situation that I cannot say is particularly common in the UK, as bad reception is nearly always caused by signal obstructions of one sort or another, that is apart from seasonal atmospheric conditions or engineering works taking place, these generally causing interruptions to the service or periods of weaker signals.
This must have been asked a million time - but, why do some transmitters broadcast more freeviewchannel than others? I live in the Stroud transmitter area and cannot receive 55 of the available channels.
Steve T: The commercial multiplex operators don't want to pay the extra cost of transmitting from the other 1,000+ sites in addition to the 81 sites they used before switchover. Ofcom have decided that their powers don't allow them to require the operators to do it (I disagree).
Ofcom are currently running a consultation on renewing the Multiplex C and D (Arqiva A and B) licences: see Ofcom | Television Multiplex Licence Renewals . Multiplex A was already renewed last year, so that ship has sailed for about the next 10 years.
Hi, I live at PH8 0BY and until 27th of June 2011 we had good Freeview reception (went digital in August 2010). Since then we have had none. An aerial engineer has replaced our boosterbox to no avail. On the coverage map it looks as if our signal comes from the Blackhill transmitter. We are having wind turbines erected up on the hills to the north of us - could this have any impact on our reception (ie does the signal bounce off more northerly hills and come back to us?)??
I live in the dy8 3ed area and recently i've lost a lot of channels mainly bbc1/2/3 and also itv and channel 4/5 plus a few others, i have tried reset to factory and retuning but no joy, also my tv has a habbit of going into standby with out me doing anything which is odd as this has only happened since i lost those channels. Any advice will be most welcome.
Ok now! after posting my message on here i disconnected everything bar freeviewbox and TV from the wall socket, i also retuned my TV first and then reset my freeview box and got 104 channels now, only had 62 before. As for the TV going into stanby! I'm still puzzeled but it does tend to only happen now and again. Fingers crossed it's all OK.
Kevin Regan Wednesday 24 August 2011 6:07PM Chelmsford
Hi I have just fitted a new aerial on a pole on the side of my house to go with my new tv which has Freeview. The aerial is pointing towards the Sudbury transmitter. I live in the CM2 9JT area, I can only receive about 20 channels. I have tried all the different forms of tunning but still no luck. Should I use a meter to set my aerial up. Hope you can help, many thanks Kevin.
Getting all FReeview channels on two tv's with a basic splitter in cable - except those on channel 43 (CITV etc.) Signal reported as 9% very poor quality. Does anybody know if a wideband aerial would solve this?
Phil Clarke: If the problem is being caused by the use of a group A aerial - (does it have a red stopper at the end of the boom?)-then yes a wideband, or a group K, would give improved reception of the COM muxes. However if the problem is interference, possibly from Emley Moor which is using this frequency until 7th September 2011. It should be noted that the COM muxes from Chesterfield are currently being transmitted at reduced power.The Digital UK postcode checker shows reception improving in September when Emley Moor stops using the same frequencies as Chesterfield and again on 12th October 2011 when power is raised on the COM muxes to 400W
I Currently have a wide range aerial on the chimney stack of my Bungalow
Tuned to wenvoe I receive channels c41c42c44c45c49 I cannot pick up C47 I am also picking up c54 from mendip transmitter. The quality of picture varies from day to day and during a day and I also get distorted sound some of the time.
bbc 1 and bbc 2 wales are the best channels but they sometimes break up. We Live in the country but the is a large tree 50 mtrs away from the aerial blocking the direct line of site of the transmitter.
DOI stick with freeview or change to freesat
David Corrick: C47 on Wenvoe carries the HD channels only - you'll need a Freeview HD telly (or digibox) to receive it ("HD ready" on the TV doesn't mean it has a FreeviewHD tuner, just that it has HDMI sockets).
At 13km from the transmitter, you're more likely to be getting signal overload causing the picture break-up, even with the tree in the line of sight, but traffic on the M4 motorway might affect your signal.
I have two wideband aerials - an external one distributed to the downstairs rooms and one bedroom, one in the loft connected to a further two bedrooms.
Since switchover and retuning, something odd has happened. On the TVs connected to the outdoor aerial, none of them can recieve PSB2 (ITV1, etc)on ch23, all other multiplexes working fine with between 70 and 100% signal.
With the TVs connected to the loft aerial, none can recieve COM3 (Yesterday, 4Music, etc...) on ch40, all other multiplexes working fine between 60 and 80% signal.
So with the two aerials which worked fine before switchover, each now does not pick up a multiplex, but the multiplex missing is different per aerial.
Richard S: I would try a test by connecting one of the TV's that presently isn't picking up PSB2 (ITV1 etc) whilst on the outdoor aerial over onto the indoor aerial, then after having blanking out the channels already stored on it, done by removing the aerial and carrying out a scan without it, and then carrying out the second scan after having reconnecting it.
If by doing that you see that ITV1 etc has returned, then that's liable to indicate that the signal received in its other position from the outdoor aerial is slightly too strong on that particular Mux channel and is blocking the tuner, this requiring a simple attenuator to be placed in line with the TV, that is unless your distribution amp is one of the variable types.
The second part of the test being, that if you now find that COM3 (ArqB Mux Ch40) has vanished then that's because it is only transmitting on low power until October 12th and the indoor aerial isnt picking it up properly because of this.
Richard S: Just in addition to what I mentioned. If the results of the test turn out as was suggested, when you then return the TV back to its original position do NOT carry out a re-scan as you will already know that ITV1 etc is stored in its memory, and indeed because of this it "might" work, however if not then you know it will again as soon as you take measures to slightly reduce the signal.
As COM3 (ArqB) will obviously not be there just add it by using the "add channels" facility on the TV, as that wont scrub whats already stored.
You have to always remember that unless TV etc are all of the same brand their sensitivities can be totally different, this why some will work and others not even although on the same aerial.
Richard S Tuesday 30 August 2011 6:30PM Chesterfield
jb38: Thanks for your advice.
I switched the aerials to the TVs around like you suggested and had the same result, the same multiplex was missing from each aerial.
However, I tried connecting the outdoor aerial direct to the main TV (i.e. bypassing the distribution amp) and the PSB2 (ITV1, etc..) appeared - although on very low signal level (10%), hence pixelating and not watchable. Is this to do with picking up too much signal or not enough before I purchase an attenuator?
Richard S Tuesday 30 August 2011 8:33PM Chesterfield
SteveP - thanks for your reply.
Yes I am on Chesterfield. I appriciate that it is on low power for the time being, but both aerials worked pre-switchover when it was only putting out 20-40 Watts. The temporary low power is 40 Watts so I would have expected the loft aerial would work - maybe I am mistaken?
I understand from jb38 that it may be an issue to do with too much power on the external aerial which worked fine when the transmitter was at 40W but now doesn't at 400W.
Richard S: I think I may well have misinterpreted what you were meaning in your original posting, insomuch that when you mentioned the TV's on the loft aerial couldn't get COM3, I didn't realise that this was in "addition" to them not receiving PSB2 either, as I assumed it was only COM3 that was the problem on these sets. Anyway the test you carried out of by-passing the distribution amplifier proved interesting by this action having enabled you to receive PSB2, as that could indicate the signal is indeed possibly over powerful, however the puzzling bit of this being, that if it was powerful then I would have expected that the TV's on the loft aerial should have been able to receive PSB2, the fact that they don't suggests that some other factor must be in existence, what Mux Ch23 signal level is shown on them?
I have to say though, that the reception predictor on the post code provided indicates your position as being able to receive from a number of sources, namely Hasland as well as Belmont, although these being indicated as less than the 100% rating seen from Chesterfield on Mux Ch's 26 - 23 - 29 (HD service), although SDN (Mux Ch43) - ArqA (Mux Ch46) - ArqB (Mux Ch40) are all listed as being variable (as you are experiencing) this improving slightly by coming out of variable on Sep11th, then being fully OK from the12th of October.
I would like though if you could try a Mux channel check on a TV that is connected to "each" aerial, the channels to use being Mux Ch25 and Mux Ch60, these corresponding to Belmont and Hasland's PSB2.
Regarding the distribution amp in the loft what model is it?
Richard S: Another addition, could you also verify that the Mux channel numbers in question are actually being seen as these numbers whilst on the signal checking screen, and not just being referred to from the transmitter list.