All posts by Dave Lindsay
Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.
PeteLad: I wondered if it was to protect against interference with Whitehead and possibly Bellair, but both these use C52 as well. I know they're a long way away, but I would have thought that that is the reason for any null.
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PeteLad: It's odd.
RT One analogue used to be on C52 and RT Two on C56. Did you experience a difference in signals then?
If so then maybe the reason it is as it is now is because of the reason it was as it was then, whatever that might be.
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linda: "Ariel" is the name of a washing power, "Arial" is the name of a computer font.
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S CRICHTON: I think the likely answer is that it's touch and go as to whether you will receive them as they are not as strong as the rest.
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Christopher Moore: The power of C31 is lower than the rest, but it is in no way "low" and is likely to be more than adequate in view of the fact that you are only 20 miles from the transmitter and have clear, or near clear, line-of-sight.
However, it is outside Group C/D, so if your aerial is a C/D one it won't be as sensitive.
See here for a reply I made to someone else who may be in a similar situation:
Sutton Coldfield (Birmingham, England) transmitter | ukfree.tv - 11 years of independent, free digital TV advice
What I would add is that signal quality is what matters. If you have good quality at any particular moment then the picture is as good as it ever will be, irrespective of strength. You may be able to live with it. Some TVs/boxes have boosters in-built and if this is the case it might be found to be useful to have that set to on for C31.
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Steve Lancaster: If you're using a powered booster/splitter then perhaps it has kicked its cloggs.
The Commercial (COM) channels (ITV3, Pick, 4Music etc) are on lower power from Midhurst and use a signal mode which means they're less robust and are therefore more likely to have lower quality, so perhaps it is those which you've lost.
If you are using a powered booster, bring up the signal strength screen and observe it. Then go to the booster and turn its power off. Then see what difference it's made to the signal strength.
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Paul Alley: It isn't likely, I'm afraid, not to the Pimlico transmitter.
The new HD multiplexes (two are coming) are quasi-national. They broadcast from 30 of the largest transmitters and are on lower power than the other channels from those transmitters. This means that coverage is more skeletal and even more skeletal than the pre-switchover digital.
If any of your neighbours have Crystal Palace-facing aerials, as looking on Streetview I can see some have, then it might be worth enquirying with them as to if they have a HD receiver and whether they can get the new channels.
Despite being only 20 miles away you don't have line-of-sight owing to the high ground at Grim's Dyke being in the way.
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Paul Alley: I should add that the plan for these 30 transmitters stands up until at least the end of 2018. So an increase in terrestrial coverage of the new HD services isn't likely before then.
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T. Hill: No, not unless there is a fault with it which would have affected analogue just as digital.
For my comments below I have assumed your postcode to be SG14 2AU as the one you provided appears to be invalid. If this is incorrect then please supply the correct postcode and I will re-evaluate.
If the aerial is directed at the Hertford relay transmitter then you will only get the Public Service Broadcaster (PSB) channels which are BBC TV and radio, ITV, ITV+1, ITV2, Channel 4, Channel 4+1, E4, Film4, More4 and Channel 5. If you opt for a HD receiver then you will have access to BBC One HD, BBC Two HD, BBC Three HD, CBBC HD, ITV HD and Channel 4 HD.
The Hertford relay transmitter is on a bearing of 20 degrees and aerials are vertical (elements up/down).
You "might" be able to receive all channels from Crystal Palace, although as you don't have line-of-sight, owing to high ground in the way, then this is in no way certain and indeed in these sorts of situations reception can be seasonal owing to changes in/on the terrain, e.g. leaves on the trees.
If your aerial does face Hertford you might wish to enquire with neighbours who have Crystal Palace aerials to see how their reception is. Ensure that they are talking about Freeview reception and not satellite (Sky/Freesat).
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Sunday 29 December 2013 9:27PM
Roger Noble: The +1s are one-hour shifts only. It's not likely that technical glitches are corrected for them.