All posts by Ann
Below are all of Ann's postings, with the most recent are at the bottom of the page.
A
The new Freeview prediction system - includes Freeview HD | UK Thursday 6 January 2011 11:54AM
Waterlooville
Don't know if someone has already mentioned this but would it be possible to give the name of the transmitter as it is not always obvious - or have I missed it? Otherwise, great facility.
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A
The new Freeview prediction system - includes Freeview HD | UK Thursday 6 January 2011 11:58AM
Waterlooville
Sorry, my computer being slow. I have just realised it does come up with the name if I hover over the icon for long enough. Thanks.
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Thank you, Brianist. I have now looked at that. I assume Mux 1 is 64QAM but this is the one we have most problems with.
I assume Mux 2 is the other 'strong' signal. This one is always perfect and the signal quality always 100%. I just can't fathom it out.
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Thank you, Mike. How strange that Muxes 1 and 2 are not both 64QAM, though. Which is the other 16QAM Mux? I hazard a guess that it is Mux C, since this is the other one we have problems with, albeit not as much as Mux 1.
The problem we have is that there is a hill immediately behind us and so we do not receive as good a picture from Rowridge as the one from Midhurst, although everything indicates that we should - the predictors just don't seem to know about the hill! Although an automatic tune picks up channel 34 from Rowridge for Mux 1b because the signal is stronger, channel 56 from Midhurst gives better signal quality and so I manually tune to that.
I remember you saying before, that channel 34 from Rowridge and 34 from Heathfield may cause interference, but is there anything else that uses 56 which may be the cause of our Midhurst problems?
As you say, the Digital UK predictor says we will not receive coverage from Midhurst. Is that because switchover will make it worse for us or do they think that we already cannot get any?
Are you saying that things will be no better for us after switchover - or even worse?
I know this should really be on the Midhurst thread, so apologies to all. Thanks for taking the time to help.
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It appears that Horndean transmitter uses
channel 56 for analogue BBC1. Is this our problem, do you think?
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Has anyone else lost Mux A, channel 62, virtually overnight? Last year, we lost it around April/May and got it back around October, so presumed this was to do with leaves on trees. However, it disappeared a few days ago and, therefore, cannot be for the same reason. Any ideas? We are in a difficult area, especially for Mux 1 (most BBC channels) but last week Mux A had a signal quality of 100% and then suddenly, nothing. The strength appears to be fluctuating between low and high.
Also, can anyone explain to me what, exactly, is being measured electronically for signal quality?
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Thank you for the info on signal quality measurement, Brian.
Regarding the single frequency interference, we already have a wideband aerial and the only equipment we have from the list is a PVR but since we haven't changed anything on that, I can't see how it would be that.
The signal quality on Mux A is coming and going now. Ok for part of the day and nothing for the rest. I suppose it is that old problem we have here, something to do with weather/atmospherics. I am keeping my fingers crossed for an improvement after switchover.
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I still can't get ArqB. Has the power been increased or not today? I have tried manually tuning C50 but nothing. I can pick up C28 off the back of the aerial from Rowridge but it is an intermittent signal.
I really would like to watch Film 4 and Yesterday.
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I forgot to mention that I used to be able to receive Film 4, etc before the main retune.
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Wednesday 5 January 2011 1:22PM
Although I am on the Midhurst transmitter, I think a great many digital reception problems come down to the changes in weather/pressure throughout the day and these cause the breaking up that you mention David.
What I would like to know is why can I receive one Mux perfectly well and yet, at the same time, another Mux with the same signal strength has zero signal quality and, therefore, no picture? They are all coming from the same transmitter. If the signal strength is the same, why the difference in signal quality? This is not a continuous problem, as I have mentioned above, and can change by the minute.