All posts by jb38
Below are all of jb38's postings, with the most recent are at the bottom of the page.
Ade: Try a manual scan on Mux Ch31, as at only 3 miles away from the transmitter there is no reason that you shouldn't be receiving it, unless that is your boxes tuner is on the verges of blocking because of an over powerful signal from the main stations on high power.
If you have a set top type aerial around, try using that for a test.
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Wendy: You cant really do anything, as the multiplex ITV3 uses (Mux Ch29) will be on low power until 12th of October, many people are having problems with this including myself.
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Wendy: Just out of interest, when you say that a signal is showing but is not strong enough to resolve a picture, is the signal showing of a reasonably constant nature, or is it diving up and down?
The reason I ask this is, that if the signal is reasonably constant then a booster could well help in this type of situation, maybe you could also mention where your aerial is situated.
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andrew Jamieson: Thanks, got it now. However on checking I have to say that it does not really look promising at any time as far as Freeview reception in your post code area is concerned, as present indications are that you should only be able to receive Ch29(BBC1)poor - Ch33(ITV1)OK - Ch23(MuxA/SDN) poor - Ch34(ArqB)OK just - Ch26(MuxB)poor.
From about Mid 2012 this should improve with you being able to receive the three main multiplexes, namely BBC/ITV/HD service, which in effect will be like a Freeview "light" transmitter albeit that Divas is a main station, as the other three Mux channels are indicated as remaining in the poor category.
To put it in a nutshell, although reception predictors cannot really cater properly for local conditions and as such have elements of inaccuracy, but in my opinion you are really in an area that any reception of a reliable nature could only be obtained is by using Freesat.
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andrew Jamieson: Omitted to mention that Mux Ch48 is not shown as being receivable at all at your location, so its really a fluke that you are getting it at all.
This being why I mentioned about predictors having elements of inaccuracy etc, although the DUK trade one I use is usually somewhat over optimistic in its forecasts, in other words having the "Rose tinted glasses" approach!
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andrew Jamieson: I think I must be suffering from a touch of colour blindness! so please amend what I said regarding Ch29 and Ch26, as they are both variable reception not poor, likewise the remaining three Mux channels I mentioned also being in the variable class from Mid 2012.
(Ch23 still poor though until approx Mid 2012)
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david faulkner: Put in basic terms, if the tuner in whatever Freeview device you are using is overloaded it will either totally block reception altogether by swamping of its input circuitry, or if the signal is slightly over the top in power is very likely cause erratic reception in the same way as can be experienced when a signal is being received that is just hovering above the reception threshold of the equipment being used, in other words the picture breaking up or disappearing at random as the signal level being received fluctuates slightly.
Needless to say this can vary between different brands of equipment because the varying sensitivity levels of the tuners being used, but in cases of excessively strong RF signal overloading a whole range of odd symptoms can be experienced.
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Jim: I realise that you say you have checked that the dish hasn't moved, but was this physically as far as your fixings are concerned? or was it by using the Sat finder meter? as only the latter is liable to confirm.
Scaffolding by the very fact of not being rigid is liable to creep or settle slightly, this possibly just enough to knock the alignment out. What levels do you see on the box by pressing "services-4-6" on the remote control.
Its just that I feel its a bit coincidental for anything other that either an alignment or cabling / "F" plug problem to be involved.
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jim: The mild tingling you are getting is quite normal, and is due to the RFI suppression techniques used in all non-transformer type power supplies fitted in most domestic equipment over the past 30 years or so.
Regarding your dish fixings, I dare say you have fitted it perfectly OK, but the possibility exists that the whole framework has moved a fraction thereby knocking your alignment out, which only your sat meter could verify one way or the other, although testing your box out on your Dads system, or his on yours, will give 100% proof of where the fault is.
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Monday 5 September 2011 7:36AM
andrew Jamieson: The post code you have given comes up with two contrasting areas when used on reception predictors, none of the channels seen matching what you have indicated, therefore could you please indicate the transmitting station you are referring to.