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All posts by Scotto

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


Actually I would have thought that digital switchover was a high priority and provision of Scottish programming in HD would be a logical part of that process. What I will do is to make a freedom of information request to the BBC and enlighten others when I get a response.

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Briantist: Thanks for that clarification. I will let the group know when I receive a response from the BBC

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At the moment the HD service is a low power temporary transmission operating at 10kW. After switchover it will increase to a staggering 100kW so I think you will see a dramatic improvement.

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I'm still getting consistent 95% signal strength (100% quality) and I live in the west end of Glasgow - a long way from the transmitter. I have read (and also seen disputed) a suggestion that there is an irregular transmission pattern for this temporary service. I am also using a Humax HD box. As I have said before the power increase and move to the new transmitter may well solve all difficulties so personally I would spend no money (and little thought) on this problem at this stage.

To correct an earlier post, it has been pointed out that to me that increasing power from 10kW is 100 kW is not 'massive'. It does not work that way. It is a 10 dB increase.

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Mike: Thanks very much for your helpful comments.

I regret to say that I have misled everyone. Although I have a Humax HD box, the readings were taken from the TV (Sony Bravia). I have now checked via the Humax menu and the HD multiplex is showing as 61% with the SD BBC multiplex at 68%. I am new to all this so beg forgiveness.

The reception is rock solid. I must be about 30 miles from the transmitter. I assume I should not be worried about excess signal.

My real purpose in posting was to make the point that although others are having problems with HD it is fine for me, and I am not exactly in a charmed position! I wonder if there could be a directionality in the temporary service that sends a good signal due west but leaves people at other compass points with problems.

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Correction: nearer to 20 miles from transmitter.

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I put forward my idea earlier in the thread !!!

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According to
mb21 - The Transmission Gallery
The site transmits all 5 terrestrial television channels, with Channel 5 analogue operating at the same power as the other channels (500kW max ERP), from an aerial only marginally lower.
Briantist has said earlier that the HD multiplex is transmitted from the same aerial (antenna for those who prefer American).
Make what you wish of the comment on
Black Hill Transmitter
Black Hill is planned to transmit a pre switchover low power HDTV MUX (on CH59 at 10kW) from Feb 2010. Its radiation pattern is the same as that for analogue C5, which is concentrated in a cross shape, due N, S, E and W, i.e. it is nominally omnidirectional.

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Darryl: my interpretation was different to yours. I took 'cross shape, due N, S, E, W' to mean that the signal was concentrated in these specific directions and 'nominally omnidirectional' to mean that it was not truly omnidirectional.

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I see that the Thomson DTI 1000 has problems supporting 2k and 8k at the same time. I have a somewhat unusual arrangement with a one aerial pointed at Black Hill main transmitter and a second aerial for my kitchen TV pointed at a local relay. I have been given a Thomson box, which I plan to use in the kitchen. Am I correct in assuming that after switchover all channels will be 8k and this box should work okay?

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