All posts by jb38
Below are all of jb38's postings, with the most recent are at the bottom of the page.
Richard Davis: Ref: your query regarding any possible Web site listings of tuners used in TV's or boxes, unfortunately to my knowledge anyway there isnt! as I just generally check on this sort of thing by having a quick look at either the service (or user) manual for the device in question, the range of manuals I use being mostly in PDF format but with a few exceptions where more complex devices are concerned.
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Bob Abbot: Well you could if you wish mount the vision amp onto the mounting pole as that's where its really intended to be mounted, but as I may have mentioned before it doesn't really matter where its mounted provided its not near to any power cables, as the coax going "into" the amp is more susceptible to picking up impulse interference by the fact of this section of coax being amplified, this being the reason why amps are recommended to be as near to the aerial as possible, although in real life they can be about 10 feet away and still be OK provided there isn't any sources of interference nearby.
Regarding aerial leads, its not advisable to have them running close to mains cables as the latter acts like a transmission aerial for any impulse spikes that might be travelling along the mains cables, these triggered from sources such as light switches (especially if switching fluorescent tubes) boiler thermostats / gas boiler ignition electrodes, or any device that uses brush type motors, food mixers or electric knives etc, etc.
As far as adjusting your aerial is concerned, "if" you can access this then what to try without actually remounting as yet, is to select the signal check screen on your TV and note the quality, then go up and slacken the aerial clamp and turn the aerial up to a maximum of 5 degrees to the left and re-check the quality, then after centering it again turn it 5 degrees to the right, once again noting the quality, as its only quality you are interested in as it doesn't matter so much about variations in strength, that being where these lower cost signal meters you use in line falls flat as they cant differentiate between these two factors.
If you notice a difference then obviously leave it where the indications are at the best, but if the quality deteriorates when moved in either direction then only remounting the aerial in another position is liable to improve the situation, but don't do anything without carrying out frequent quality checks as you may pass by the best spot.
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Andy Jones; You should not really require to do that but by all means try a manual scan on mux Ch51, however if it does not receive any signal then it could point to your LG being only an HD ready set and not fitted with a DVB-T2 tuner which is necessary for HD reception, so either have a look in the user manual / specifications / tuner for DVB-T2 being mentioned or give an update with the model number of the TV in question.
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Andy Jones: Another little point I forgot to mention and which particularly concerns LG Freeview HD TV's, being that some of these HD sets are extremely sensitive to signal overloading problems on the HD channels, with picture break up being seen on HD reception but not on SD channels, or the set not actually picking up HD in the first place, something which "might" be applicable in your case, so if your TV does prove as having a DVB-T2 tuner fitted then the aforementioned could be the reason for your problem.
However I am unable to assess as to whether or not this is likely to apply as you haven't provided a post code which would have been used for signal checking purposes, but should you have any booster in line then by-pass and try another scan on Ch51.
If though there isn't a booster in line and you have access to a set top aerial give the TV a Ch51 scan using that, should it then pick up HD channels you will require an attenuator to be fitted in line with the TV's aerial socket.
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Sid Barnett: It could possibly be that one of the now high powered Freeview channels is transmitting on the same channel as you are using for the Sky boxes RF output, but an easy way to test that is by taking out the "normal" aerial that goes into the Sky box, if that situation is applying then Sky should come back on again, that is provided you havent altered the analogue tuning on the TV or the RF channel used by the Sky box.
If this does prove as being the problem then choose a new RF output channel on the Sky box
and rescan the TV (on analogue) to pick up the altered RF output on the Sky box.
You should keep any channels used for the Sky boxes RF output up at about Ch65 or so.
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Sid Barnett: Just to clarify, when I referred to you not having altered the analogue tuning on the TV, obviously in your case this means the DC100.
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Sid Barnett: Just another little point concerning your DC100 I am rather curious about, is this sited in a different room from the Sky box? I only ask as I just wondered why you dont use a scart lead between the TV and the DC100, unless that is the TV doesnt have a scart input?
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carol penn: If you have a Freeview TV in the bedroom then the normal way of doing things is to have the aerial (from roof or loft) going into the Sky boxes aerial input, then as you are obviously doing, use a cable from the Sky boxes RF1 output (or RF2 if magic eye is used) to the bedroom TV, the main TV in the lounge or wherever being coupled into the Sky box via a scart cable. You can then view either Freeview or Sky by changing the mode the bedroom TV operates on, this being analogue for Sky or DVB (digital) for Freeview reception.
I cant quite understand what you mean by the cable that links to the bedroom coming from the main TV, as nothing should be coming from the main TV as such, so maybe you could clarify on that point and also on another issue, being if you have a separate aerial for the bedroom TV?
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Sid Barnett: Thanks for the update regarding location, which on checking does indeed indicate the possibility of you receiving an extremely high level of signal by being located at only 13 miles away from the high powered Rowridge transmitter, dependant of course on the aerial system being used.
Anyway try whats been suggested regarding the Sky boxes RF channel etc, giving a report on your findings and we can take it from there.
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Thursday 22 March 2012 8:08PM
spencer: The "Digital UK trade view" box on the right hand side of your posting continually indicates that you have entered RH138DF as being your location and everything said was based on that, Horsham also appearing at the right hand side of the time the posting was made.
I did though have a suspicion that something wasn't quite right and thats why I added the qualification to the original posting.
Have a look at the "for an enhanced Freeview reception prediction" box at the very top right hand side of this page to make sure nothing has been entered into the box, as the code referred to was also on your 5.35pm posting.