All posts by jb38
Below are all of jb38's postings, with the most recent are at the bottom of the page.
GB: Well, any aerial at roughly 20 degrees out from the direction of the transmitter (@ due North) isn't really desirable, and especially so at the distance you are located from the transmitter, that of 61Km.
Another point to observe being, that because you are indicated as being able to receive signals from The Wrekin (28mls @ 183 degrees) as well as Sutton Coldfield (44mls @ 139 degrees) but because these two stations operate on lower Mux channel numbers than Winter Hill its advisable to carry out a quick check after any auto-tuning exercise to ensure that everything received is from the same station, this being where the signal test facility comes in handy by it enabling you to check out the Mux channel number associated with the signal being received.
Winter Hills combination being : BBC1/2 (Mux Ch62) - ITV1 (Mux Ch59) - BBC HD (Mux Ch 54) - SON (Mux Ch59 - ArqA (Mux Ch61) - ArqB (Mux Ch55)
The other little point that you could maybe confirm, (or not as the case may be) is if your TV received the HD channels OK when connected to your neighbours aerial? if by any chance it didn't, then could you please give the TV sets model number.
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GB: I really don't think that the situation regarding the possibility of your aerial system actually having a fault can be assessed properly until your aerial is turned around to face the correct direction for the transmitter, because any normally occurring variations (inc atmospheric reasons) in signal strength being received when not in a "line of site" situations gets worse the further away a person is from the transmitter, as signals can get reflected by all sorts of things, with some of being advantageous if of a stable permanent nature, this why some people might find that they get a better signal when their aerial is at an offset from the exact direction of the transmitter.
The problem with your installation is that the offset you have was done for a reason that no longer exists, and so this will really require correcting first to enable a more accurate assessment to be made of the situation, as although an intermittent fault (bad connection etc) might be in existence I have my doubts about this applying.
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Graham Kemp: A trade view check using the code provided indicates that you should presently be able to have excellent HD reception from Tacolneston (@ 21mls) on Mux Ch62.
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Dusica: If my memory serves me correctly on that model you should be able to manually install channels under the "Installation / Service set up / Manual install service" menu.
However I would recommend that you carry out a factory reset first then followed by an auto-tune, this achieved by holding down the Menu button on the side (or top) of the TV (not remote) for about 5 seconds or so until a menu appears, then carry out steps 1-5 as though you were first installing the set.
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Tony Richards: If you are referring to what you have seen regarding analogue switch off's or alterations taking place on Freeview, then there is no connection whatsoever between these events and your problem with Sky reception.
Sky is quite correct in what they say, because nothing will restrict satellite reception provided that the dishes view of the skyline has not been obstructed, as other than that the problem you are experiencing just has to be caused by either defective equipment or that the dish is not aligned properly.
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Brian Thwaites: The programme you refer to is still there but is transmitting from Sudbury on a very low powered multiplex until mid next year, and is something that is a cause of great annoyance for many people as there isn't really any technical tricks that can be used to get around the problem without grossly overloading your receiver from the stations main high power multiplexes, these radiating at 100Kw compared to the 1.1Kw Mux that Yesterday / Ideal World / Film 4 / ITV4 etc, is on.
By the way, the BBC1 etc channels you refer to up in the 800 ranges are just duplicates picked up from other transmitters, and its assumed that you are just mentioning this in the passing and not that they are better than the BBC1 in the EPG1 position , as if this is the case then carry out a factory re-set followed by an auto-tune. (wont help Yesterday etc though!)
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Mr.A.Sherreard: Yesterday and Film 4 that you are referring to are transmitting from a very low powered multiplex at Sudbury, and which is something that is the cause of numerous complaints from many people located at various distances from the transmitter, including such as you are yourself @ 11mls.
Unfortunately there is nothing really you can technically do to improve the situation without the danger of causing an overload situation in your TV / box from the stations main multiplexes, these radiating on 100Kw compared to the 1.1Kw used by the Mux EPG's 12/15 etc are on.
Its really a hit and miss situation as to whether or not a person can receive a reasonable signal from there, this dependant on various factors including just how good the tuner is in their receiving equipment.
The situation is temporary until mid 2012.
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Matthew S Bluck; Although your aerial is in the loft you should be aware of the fact that at only 9 miles away from a 200Kw transmitter you could still be receiving a signal on the verges of being too strong for your receiving equipments tuner, as in these type of situations the signal strength readings seen are usually totally inaccurate as the system used for measurement is upset.
A simple test that gives a good idea of the true signal strength being received in these type of situations is to try using a set top aerial, as in many instances this can indicate a signal of equal strength if not even more than from the roof or loft aerial being used.
The only occasions that this type of test doesn't work properly is if a person is located in a basement flat, or alternatively in some other horrendous notorious black spot for reception, but it should be appreciated that the symptoms of an over powerful signal are generally "exactly" the same as that of a weak one, this being something that can mislead the unwary.
I am not saying for definite that this is applying in your case, but at your distance from the transmitter there is a great possibility that it is.
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john: It depends on what you mean by "ordinary", is it a normal aerial supplied Freeview or analogue TV? the other points being if the TV is to be used purely via the Sky box, as if so and its in another room then you can run a co-ax lead from the Sky boxes RF output to feed the TV in the other room, which of course will have to be set on analogue if its of the dual standard type. (Digital Freeview / analogue)
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Saturday 19 November 2011 8:27AM
GB: The signal strengths received from each transmitter in a group of multiplexes are not necessarily all going to be at the same level even although the transmission power of each multiplex may be the same, and I suspect that the Mux channels you have lost is simply because they were just being received and no more in the first place, but due to normal atmospheric condition changes they have now dipped under the reception threshold, this being why the booster has enabled them to return.
The fact that your TV works fine on your neighbours aerial is simply because their aerial system is a little more efficient than yours, maybe they also have a booster in their loft, or even a mast head amp? and so although its possible that water has got into the co-ax cable, it really boils down to the fact that your aerial system requires improving and not that it has failed.
When your TV was working on your neighbours aerial you should have carried out a signal strength / quality check on BBC1 then on ITV1, then compared the levels seen to when connected to your own aerial, as I suspect that the level you will see on even BBC1 (which you say is OK) will be somewhat different to that seen when on your neighbours aerial.