All posts by Dave Lindsay
Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.
dennis: Lots of people in Suffolk are having the same problem since the signal was changed.
It will return on 27th June when the frequency and power of the signal will be increased to that of the others.
The reason for this is so as to fit in with other transmitters that haven't switched yet.
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Tony Wilkinson: I found the trade newsletter published by Digital UK at the time of swithcover in 2009:
http://www.digitaluk.co.u….pdf
This says that the Public Service Broadcaster (PSB) multiplexes (BBC, ITV1, ITV2, C4, E4, More4, C5, HD services and a few others) are on their final full power of 50kW. This assumes that it is not on temporary low power now.
However, the commercial multiplexes (COMs) that carry ITV3, Pick TV, Dave, Yesterday and others are at 10kW until sometime this year and this is to protect services in France. Their final power will be lower than that of the PSBs at 25kW, so there will be some on the outer of the coverage area that will get the PSBs, but won't get the COMs. Some might be able to upgrade to a bigger (more sensitive) aerial so as it receive the COMs at 25kW.
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Ann: Can you post the full model number of this Evesham mechine?
Some older models can't remember as many channels as exist today, and hence forget them when they're switched off.
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Martin Jakubowski: At 7.6 miles from the transmitter, with clear line of sight, it could be that the signal level is too high.
See this page for more information:
Freeview signals: too much of a good thing is bad for you | ukfree.tv - independent free digital TV advice
Get a variable attenuator and connect it between the aerial and the input of the Sagecom box.
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Paul: It is on low power until 27th June when it will be increased to its final power level which is the same as that of the commercial multiplexes now.
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jb38: I plotted the terrain using Megalithia and the link for Emley Moor is above. The line of sight is obstructed for about a mile just under half a mile away from Andy's location.
Andy: Perhaps you can confirm what you can and can't get and what channels they are on. Also, was there any interference on any analogue channels when they were on, and if so which?
I wonder, if you are on Idle, if could be interference from the pre-switchover digital signals from Bilsdale that is the problem. Bilsdale is in the same direction, albeit different polarisation. The predictor does suggest that reception from Idle will improve on the same date that these signals are turned off from Bilsdale.
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Martin Jakubowski: The signal level could have changed slightly (increased); a change in atmospherics for example.
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james: It says above that there is work being carried out on the transmitter and that its Freeview signal will be on low power. I would say that this is the most likely explanation for no analogue channels at the moment. I think that you should bide your time for now.
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Alan: The Digital UK predictor suggests that Oxford isn't really an option.
Have a look around at your neighbours and see where their aerials are pointing.
There is a relay transmitter (known as Woodford Halse) on Byfield Road, near to the crossroad with Phipps Road and Grants Hill Way and its signal is directed to the south west which is in the direction of Hinton. This tells us that there are parts of that area that aren't served by other transmitters, or at least can't get Sutton Coldfield. Perhaps that is the reason for your aerial being directed to Oxford.
Keep an eye out for vertically polarised aerials in that direction and that will give an idea of where it is intended to serve. It is possible that your tuners are choosing to go with the signal from that transmitter even though your aerial doesn't point in that direction.
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Monday 2 January 2012 6:08PM
jb38: I meant to say that the predictor reckons that Bilsdale is the best after switchover. From my observations, I believe that it is on this basis on which region it asserts a particular post code is in (even if that post code is surrounded by a different region).
I think that this is probably why Bilsdale is listed at the top on the list of transmitters; because it is the only one that scores all 100s across the board after switchover.