All posts by Dave Lindsay
Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.
Terry: Because at least one is tuned to "another" transmitter, perhaps one to which the aerial doesn't face. The solution, therefore, is to have the one showing West Midlands tuned to the correct transmitter which will also reduce the possility of poor reception caused by the signal received being off-beam of the aerial's direction.
Which transmitter is your aerial pointing to - Nottingham (Kimberley) or Waltham?
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Paul: The signal is very strong in Ossett so I don't think there's any chance that it won't work!
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Anthony: Whilst it could potentially be single frequency interference, I will make one observation.
If you haven't had your "old" aerial replaced, it could be a Group A one. Of all Bilsdale's channels, COM5 is on the highest, it being C46. This is furthest "out of group" and therefore potentially your aerial may be least sensitive to it.
I covered this one previously:
Bilsdale (North Yorkshire, England) Full Freeview transmitter | ukfree.tv - 11 years of independent, free digital TV advice
Basically a Group A aerial is designed to be sensitive to Group A frequencies which are the bottom third. COM5 and other COM channels from Bilsdale are in the middle third of the band (Group B) and so the sensitivity isn't as great there.
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john: I suggest that you consider where the signal might be expected to be the best in your property and work from there. This would be upstairs (assuming you're not in a bungalow) at a window facing south-west. Do a manual scan of channel 12D, if your receiver offers manual tuning. Observe the signal strength and move it to best effect.
"If" you manage to receive 12D at this location (having tuned it in) then move your radio to the room where you would prefer it to be sited. If the signal isn't there or isn't good enough then you will have to move it. Don't rescan as once it's tuned it will provide the service if the signal is available.
Bear in mind that computers, laptops and the like generate electrical noise which can degrade DAB signals.
Refer to the Ofcom coverage map here:
http://www.ofcom.org.uk/s….pdf
There are several maps, see the one on page 6 of the PDF for "indoor coverage under normal propagation conditions". As is to be expected the coverage isn't as good in the Vale of York.
Failing that, you might be able to receive BBC Radio Leeds on FM. The Holme Moss transmitter might be your best bet, it broadcasting on 92.4MHz. Or perhaps Keighley on 102.7MHz.
Again, the strategy must be if you're having difficulty to take the radio to where it is thought most likely that the signal will be present, and then work from there.
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S.N.Haldar: One of the things to consider is whether broadcasts use the DVB-T digital signal standard or the later DVB-T2 standard.
In the UK, standard definition broadcasts use DVB-T and high definition broadcasts use DVB-T2. Thus, a "Freeview HD" receiver is capable of receiving DVB-T and DVB-T2 signals. I understand that BT Vision boxes are standard definition only, and therefore only contain DVB-T tuners.
I haven't established for certain whether India uses DVB-T2 exclusively, but if the area you're going to has signals that are, the BT Vision box won't pick them up.
See:
News - DVB
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debbie: Yes.
However, if the TV has Freeview built-in then the stand-alone Freeview box is perhaps superfluous.
Without explanation of the purpose of the booster (how it's connected) I shall assume that the aerial feed goes into the booster, out of it and into the Freeview box and out of that and into the TV.
If you wish to add a Freeview recorder then just daisy-chain it on the aerial feed. That is put the recorder before or after the Freeview box.
If your TV does not have built-in Freeview then there is no need to connect the aerial feed into the TV as it serves no purpose.
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Bill: Reports are that the Newhaven TV transmitter went off at 08:39 this morning, so perhaps its DAB was also taken off the air.
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Brian Baines: There is, apparently, a "3" mobile phone mast about 300m away from you. Follow the link "Reception map" next to your posting.
Maybe it has started 4G services at 800MHz. BBC services from Kendal transmitter are on the highest frequency and just below the frequency used by 3's 800MHz 4G base stations.
at800 is the organisation set-up to by the mobile operators to deal with interference, so I would be inclined to give them a ring and see if your issue might be caused by it.
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jule: Your situation would appear to be almost identical to that of Brian Baines whom I replied to in the posting above yours only an hour ago.
BBC standard definition channels from Beacon Hill are on UHF channel (frequency) 60-, as they are for Brian. According to the "Reception map" there is a "3" base station about 400m away from you on roughly the same bearing as Beacon Hill. It may be the case that it has started broadcasting 4G services in the 800MHz band (just above BBC).
If you have any boosters then I would try removing them or reducing their level.
The people to speak to who can answer the question as to whether a 4G signal might be the cause of your issue are at800.
Website: at800 | 4G & Freeview | 4G Interference | 4G Filters | at 800 MHz
Telephone: 0333 31 31 800 or 0808 13 13 800
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Tuesday 22 October 2013 4:42PM
Peter Vile: It is "AV line in".
Mike B is referring to the fact that when you connect your Freesat box it will be via scart. You will therefore have to select the appropriate scart input (AV line in). For example, "Ext1", "Scart1" etc.