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All posts by Dave Lindsay

Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.

C40 (626.0MHz) after switchover
Friday 12 April 2013 2:53PM

brian hammond: HD became available at switchover.

Your TV may by a "good HD" one, but does it have a DVB-T2 tuner in it? If it does and you are manually tuning then ensure that DVB-T2 mode is selected rather than DVB-T (which is that used by standard definition broadcasts in the UK), if there is such an option.

The make and model number should allow us to determine whether it is capable of receiving HD broadcasts.

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binzer: Not with Freesat unfortunately.

You may be able to receive it from Black Mountain, for which you will need a Freeview HD receiver (even though the pictures are standard definition).

Or you may be able to receive the full Saorview service from Clermont Carn in Co. Louth. For this, you will probably require a Freeview HD receiver although some standard definition ones have the capability to show Saorview pictures. Or a Saorview-branded receiver will do the trick (again, if you can receive it at your location).

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Diagnostics - old version
Friday 12 April 2013 6:23PM

Donna: The issue with the EPG and the poor signal makes me think that your TV may have tuned to a different transmitter for ITV, C4, C5 etc.

You may need to manually tune to the desired transmitter, or you may be able to have the aerial lead out during the part of the scan of the frequencies that unwanted transmitter broadcasts.

Knowledge of your location will probably allow this to be worked out. Also, bring up the signal strength on BBC One and see which UHF channel (frequency) it is tuned to (this will be a number between 21 and 60, or a frequency in MHz is equivalent. Do the same for Channel 4.

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Diagnostics - old version
Friday 12 April 2013 6:33PM

paula: Ensure that your TV is tuned to the correct transmitter for all channels. There appear as if there may be a couple of possibilities at your location and maybe your TV has decided to go with the one that your aerial doesn't point to.

Looking at your road on Streetview, most aerials are pointing to Chesterfield, although a few are directed to Emley Moor.

Bring up the signal strength screen on the following six services (five if it's not HD):

BBC One, ITV, BBC One HD, ITV3, Pick TV, Film4

For Chesterfield, the tuned channels will be 26, 23, 29(HD), 43, 46, 40

For Emley Moor, the tuned channels will be 47, 44, 41(HD), 51, 52, 48

If your aerial is pointing to Chesterfield then it will be facing immediately north and will be vertical (elements up/down).

If your aerial is pointing to Emley Moor then it will be about 20 degrees anti-clockwise of north and will be horizontal (elements flat).


You may be able to manually tune or you may be able to workaround the issue by having the aerial out for the part of the scan where the unwanted transmitter broadcasts. Further advice can be given knowing whether this is the issue and which transmitter you should be receiving from and which you are tuned to.

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Jonny: If you are receiving from the Stroud relay, or "filler-in" transmitter, then you will not have the Commercial (COM) channels; it only carries Public Service (PSB) channels.

For a list of which services are carried on which multiplex (i.e. which are PSB and which are COM), see:

DTG :: DTT Services by Multiplex

The COM channels only broadcast from the largest transmitters as their prmiary objective is profit and they have no "Public Service" obligation. See here:

Londonderry (Northern Ireland) digital TV transmitter | ukfree.tv - 10 years of independent, free digital TV advice

If you are receiving from Stroud then you may be able to receive the full service from another transmitter such as Mendip or Wenvoe. The latter carries Welsh regional programming and you may be able to use a separate receiver for it (or use Wenvoe as your main transmitter and Stroud via a separate set-top box for regional programming).

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Jonny: I would suggest that you're not likely to be able to receive from Mendip and that you're only option in the centre of Stroud might be to receive all channels from Wenvoe and regional PSB channels from Stroud. Unfortunately due to the channels (frequencies) used by these two transmitters being interleaved, you won't be able to have the two feeds (from each aerial) combined so as to feed it into one receiver.

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richard green: I gather that there is n aerial wall socket into which you plug the aerial lead and then connect it to your TV.

If the signal varies when you move the aerial lead about and the aerial is plugged into the wall then this suggests that there might be nothing coming out of the wall socket and that it is the aerial lead that is acting to pick up the signal which is why it varies as you move it.

Feed the aerial lead from the wall socket straight into the TV, without any other boxes connected and try again. If you do this and it works, and it stops working when you feed it through the box, then the issue is with the box. If so, knowledge of the make and model of the box might allow further guidance as to how to proceed.

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richard green: I should emphasise that at this point no signal coming out of the wall socket is only a possibility. The objective to try and prove or disprove this theory.

Trying another receiver known to work is obviously something else that you might be able to do.

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Winter Hill (Bolton, England) transmitter
Friday 12 April 2013 10:37PM

Jean: In which case then it's likely to be your communal aerial system which requires adjustment for which you will have to speak to the party responsible.

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JIM: No; this is never likely. See here for an explanation:

Londonderry (Northern Ireland) digital TV transmitter | ukfree.tv - 10 years of independent, free digital TV advice

I suggest that you see if you might be able to receive the full complement of channels from the Dover main transmitter.

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