All posts by Dave Lindsay
Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.
david: I'm getting dj vu here. Read the postings immediately above yours.
Evidently LBC has been removed from the West Midlands multiplex which is due to close on 27th August.
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David Curtis: I can ask you the same question in reverse: Why should you be receiving four (five if it's HD) muxes with excellent signal quality?
As I said, you do not have line-of-sight due to the high ground on which Crowborough sits being in the way. There is also potentially another obstruction at 7.5 miles:
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
Signals travel in straight lines. Because you don't have line-of-sight you are relying on diffraction which is the signals bending around the obstruction. Different frequencies bend differently so as a consequence in non-line-of-sight situations it can be found that all signals aren't received at the same level. Indeed in some places one or more signals may be good and others apparently non-existant. The objective is to site the aerial where they are all good.
I should also add that there are also a lot of trees in the way. So "if" it isn't the defraction issue then it could be refraction caused by the trees, such objects often affecting one or two frequencies whilst allowing others through seemingly unscathed.
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ROERT BARNFIELD: The reason you have any TV channels now is because those broadcasters have an obligation to provide a "public service". One of those broadcasters is the BBC, to which your Licence Fee goes.
The fact that the Commercial broadcasters don't wish to transmit from Ladder Hill and over 1,000 other similar relay sites and is therefore unavailable to those viewers does not mean that the BBC should receive less revenue from those viewers.
The point is that there is now a two-tier system and two types of broadcaster: Public Service and Commercial. The latter exist purely for profit and serving a small proportion of the population, per viewer, is much greater. For that reason they aren't interested.
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June Toms: Because, I imagine, that from yesterday it was no longer available. This is exactly has happened in the West Midlands and other parts of the country.
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David: Global Radio does not have to "prove" anything when making its decisions, other than perhaps internally and maybe to its shareholders.
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I have a Sony RDR-HXD870 and sometimes when I set something to record on LCN 001 BBC One it decides instead to record from one of the BBC Ones in my 800s, these being those of Belmont and Bilsdale.
Last night I was hoping to watch The Apprentice from the beginning only to find, with the programme a few minutes in, that my recorder was sat "Timer Ready" with "No Signal" - it was on LCN805. It turns out that LCN805 is C50 which is Winter Hill!
I am using a DM Log fitted in the loft. Winter Hill is only a few degrees of the bearing to Emley Moor, albeit that the Pennines are obstructing line-of-sight.
Today there is 0% signal strength showing on C50 and too on C59 (PSB2 from Winter Hill). Despite this it has populated the EPG, which confirms my suspicion that it is Winter Hill because the regional news programme is North West Today.
How come the EPG has been populated? Would I be right in concluding that EPG data for BBC One and ITV for the North West region must be being carried by Yorkshire or one of the other regions I am picking up?
How might I get around this? I have already fitted an attenuator so as to fade out Bilsdale and Belmont. I suspect that Winter Hill was added a few weeks ago (prior to installation of the attenuator) because Drama from Emley Moor is on LCN809. Oh and it has also picked up C59/ITV Granada from Winter Hill.
Might setting parental control on these 800 services rule out the possibility of it automatically switching whilst still allowing me to view them if I wished?
I could wipe the thing and store only Emley Moor channels and fit the attenuator in the hope of preventing it from storing other transmitters. But if I wish to receive a different region having done so I would have to wipe and start again.
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Paddy: It is impossible to give guidance on reception issues without knowledge of your location, preferably in the form of postcode or one of a nearby property such as a shop.
It would also be useful to know what aerial(s) you have pointing where (and which polarisation - horizontal or vertical).
If you have been receiving RT Two in HD and TV3 then you must have been picking it up directly from one of the Saorview transmitters in the South. Black Mountain transmits RT One, RT Two and TG4 only, all three of which are in standard definition but require a Freeview HD receiver.
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Paddy: It would also be useful to know which UHF channel your TV is receiving these services on, this information usually given on the signal strength screen. My guess is it will read C52 if you have TV3 on the TV.
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Glenn: Refer to the terrain plot:
Terrain between ( m a.g.l.) and (antenna m a.g.l.) - Optimising UK DTT Freeview and Radio aerial location
The line between you and the transmitter is more or less in line with the motorway. I suggest that the motorway close to you is in the signal path (further away the signal path is far enough above the ground for objects on the ground not to affect it).
I suggest that could be traffic. Does it happen less on Saturdays and Sundays?
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Wednesday 17 July 2013 5:15PM
David: If the multiplex closes, as it is about to, then stations carried on it will no longer be available!