All posts by jb38
Below are all of jb38's postings, with the most recent are at the bottom of the page.
clare: A BT Vision box is a Freeview box that can also work on-line via a broadband connection and as such has no connection whatsoever with a satellite dish, and so you require a normal loft or roof mounted aerial or you could maybe even use a set top type depending on your location to the nearest transmitter, your post code, or one from nearby, allowing your signal possibilities to be assessed.
| link to this comment |
Ann: You should plug the bedroom TV into the downstairs aerial position which you know is OK, and carry out a re-tune whilst its on that connection.
Also, as this is basically a reception query you will also have to provide your location, this in the form of a post code or at least one from nearby, as you might be in an area where the possibility exists of an excessively high level of signal being received which can destabilise some equipment more than others, and if this is suspected as playing a part in your problem then you will need to by-pass the booster.
| link to this comment |
Steve: Are you sure that the TV concerned hasn't been left on its Freeview mode (DVB) rather than analogue? However if this doesn't apply then can Freeview be received on these remote TV's? that is "if" you are feeding the Freeview signal into the Sky boxes aerial input and its passing through the box as well as picking up the analogue signal in the process, and if you are doing things this way then for a test remove the Sky boxes normal aerial input and see if Sky returns on the remote TV's, if it does then you will have to try a few tests using a different RF1/2 output channel on the Sky box and retuning the analogue TV's to pick it up again after every alteration.
| link to this comment |
nicki: Although you are located as being roughly 20 miles away from the transmitter you could still be receiving an excessively high level of signal dependant on the aerial being used, and so if you use any form of booster then this must be by-passed.
Another test you could carry out connected to the possibly of an over powerful signal being received is to try a test using a set top aerial, giving the TV / box a re-tune after having connected same, if though you cannot access a set top aerial then a short piece of wire (about 12" or so) pushed into the inner part of the aerial socket might get you a picture, and if it does then an attenuator will have to be placed in line with the aerial socket of whatever you are using.
Has your aerial been altered to being vertically mounted rather than horizontal?
| link to this comment |
Vaughan: Les Nicol just pipped me at the post so to say, however this is a link for a popular type of modulator that I had intended to include in my own reply, the price may be slightly out of date as Maplin had reduced it a while back.
Programmable Universal Modulator : Video Switches : Maplin Electronics
| link to this comment |
Nigel: The overall lengths of these log aerials are / Log 40 is 4'4" (131cm) DM log is 3'6" (107cm) DM18 log is 2'6" (76cm) I would suggest that the DM log would be best in your situation, although to be quite honest about it any of them would do as the gain figures aren't that terribly important for any aerial that's intended to be used in a location where a signal capable of resolving a picture can be achieved with nothing more than a piece of wire in the aerial socket of a TV or box, remember though that when trying experiments with the aerial in different positions it should initially be done with it vertically mounted, although tilting it to the left or right should also be tried at every good spot found.
| link to this comment |
Matt: All around the Downham Market area (should you be in it) its possible to pick up signals from both Sandy and Belmont with roughly the same strength in various areas and you might have picked up a mixture of both during a re-tune, and so "if" BBC Look East is your news service then its coming from Sandy on mux Ch27, and so the three commercial mux channels that match it are: 51 - 52 - 48.
To check this, select Dave(11) and carry out a signal check on it for purposes of seeing what channel number is associated with the indication, which of course should be mux Ch52, if 53 its from Belmont.
Carry out the same test on Quest(38) and in that case its should be mux Ch51 but 30 if from Belmont, finally select Yesterday(12) which should be mux Ch48 but 60 if Belmont.
If you find that that's what's happened then you will require to manually tune in Sandy's six mux channels one at a time, these being :27 - 24 - 21(HD) - 51 - 52 - 48
Should though you have Look North as the BBC news service then that's from Belmont, and in that case the six mux channels used are: 22 - 25 - 28(HD) - 30 - 53 - 60
| link to this comment |
Matt: If you do find it necessary to use manual tuning procedure then everything stored should first of all be deleted by carrying out a "factory reset" on your TV or box, this sometimes called "default setting", but if you see "first time tune" or whatever you can use that instead provided it offers a manual scan option, as some devices don't.
Any problem in carrying this out come back with the model number of whatever you are using.
| link to this comment |
Jon: Although I feel that your problem is likely to be caused by the older TV having a less sensitive tuner or is suffering from an incompatibility problem with the new transmission modes being used, but you should really have completed your test by trying it upstairs, if at all possible that is! as I appreciate that some older sets can be extremely heavy.
Regarding the individual feeds, its always better for each aerial point to have an individual feed, as its the only way of guaranteeing that each device receives exactly the same level of signal.
Maybe you could indicate the model number of the TV in question, although its not necessarily the case that all older sets automatically have inferior tuners, as other factors can be involved.
By the way your area isn't exactly a stranger for complaints about reception, and I notice that you are not really predicted to receive the commercial channels at other than with a variable status, this being on a permanent basis.
| link to this comment |
Sunday 20 May 2012 8:07PM
Paul: It depends on whether or not that who ever has set up the dish has aligned it to 28.2 degrees, or maybe one of the other ranges of satellites such as 19.2