All posts by Dave Lindsay
Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.
Brendan : Some older receivers won't work with the post-switchover signals which could explain why BBC One and BBC Two aren't being received. Knowledge of the make and model number will allow advice to be provided as to whether this is the case or not.
You have posted on the page for the Carnmoney Hill transmitter which does not broadcast Freeview before switchover. At present it only broadcasts BBC standard definition services and after 24th October will carry Public Service channels only (so no Film4, Dave etc).
Does your aerial point to Divis which is at 168 degrees? (Aerial will be horizontal)
Carnmoney Hill is at 100 degrees with the aerial vertical.
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terry beddow: The HD services will move to 101 to 105 and the five main standard definition channels will remain on logical channel numbers 1 to 5.
If they watch only these channels, then there is probably no need to retune on 17th.
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Gordon Rossiter: This question gets asked a lot in relation to Public Service-only transmitters like West Runton.
I answered it in relation to this transmitter only last month, so please read the answer on this page:
West Runton (Norfolk, England) transmitter | ukfree.tv - 10 years of independent, free digital TV advice
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Gordon Rossiter: I am not sure of your point. As you say, West Runton only carries Public Service channels.
The explanation of why the Commercial broadcasters don't transmit from it is covered in my posting above (Wednesday 19 September 2012 3:02PM).
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John Drage: Yes, HD services are carried on one of the Public Service multiplexes and will therefore remain available from all transmitters.
Did you reassess your chances of full service from Sutton Coldfield after switchover last year?
I looked at Streetview (its photos were taken before switchover in September 2008). There are a number of aerials pointing at Sutton Coldfield. Presumably the pre-switchover Freeview signal was too weak then and so they supplied only the four analogue channels, which is the same was the Leamington Spa relay. Thus, as both transmitters offered the same range of channels, the question for any installer was "which is best at this location?"
Today there is a difference in the number of channels broadcast by each, so even in areas where a local relay may be stronger, reception from a full-service main transmitter may be possible, albeit with higher gain aerial. The question is now one of "can I receive from the full-service transmitter?"
So just because the decision was made to receive from Leamington Spa in the days of analogue doesn't necessarily mean that reception from Sutton Coldfield isn't possible.
Look at which transmitters your neighbours are using. Sutton Coldfield is at 333 degrees, aerials horizontal. Leamington Spa is at 89 degrees, aerials vertical.
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william: At the first stage of switchover BBC Two analogue is switched off so as to allow the BBC digital channels to come on air on full power.
The Gortnalee relay transmitter, which I assume you receive from (165 degrees, aerial vertical) will be Public Service only. This means that it will only carry BBC standard and high definition TV, BBC radio, UTV, UTV+1, UTVHD, ITV2, Channel 4, Channel 4+1, Channel 4HD, E4, More4 and Channel 5.
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Ian Baty: There may be a number of transmitters that can be received from and automatic tuning functions are in no way infallible when faced with multiple transmitters.
Have you confirmed that it is tuned to the D3&4 broadcast from your transmitter?
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Angelina: From Emley Moor, BBC is on C47 and ITV1, C4 etc on C44.
You will be picking up BBC North East/Tyne Tees from Bilsdale which is on C26 and C29. You may also pick up Belmont which primarily serves East Yorkshire and Lincolnshire but has considerable overlap to South Yorkshire and beyond. It uses C22 and C25 for BBC and ITV respectively.
As Emley Moor uses higher channels, just unplug the aerial lead for the first 30%. This will miss out scanning of channels in the 20s.
However, other channels from Bilsdale and Belmont are in the 40s, 50s and 60s.
Once you have it tuned, check that all are tuned correctly to Emley Moor:
PSB1 | BBC One | C47
PSB2 | ITV1 | C44
PSB3 | BBC One HD | C41
COM4 | ITV3 | C51
COM5 | Pick TV | C52
COM6 | Film4 | C48
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Malcolm Stuart: Have you checked that it is tuned to the correct UHF channel for the transmitter to which the aerial faces? This information is usually given on the signal strength screen.
Whitby's is C55 and Aislaby's is C45. If your aerial points to one, it could be picking up the other off the back of the aerial.
If this is the problem and your aerial faces the Whitby transmitter and it is tuned to Aislaby, then run the automatic tuning scan with the aerial unplugged up to about 52%.
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Friday 12 October 2012 11:09PM
Graham: Nobody can!!
BBC One HD has one feed nationally and ITV1 HD has about four or five. Those regions for which there is no ITV1HD get the nearest one.