All posts by Nick
Below are all of Nick's postings, with the most recent are at the bottom of the page.
what is the purpose of a transmitter at Rouncefall when the area is served by other transmitters?
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Chris SE.
what does sfn mean please?
So you are saying having two transmitters using the same channels and in nearby locations does not lead to reception problems?
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Chris SE
Thanks.
I don't think it says here that Rouncefall is now no longer light, but if they can upgrade there, why can they not upgrade Aldeburgh which has twice the power and serves a large area, thus removing our reception problems from Sudbury? Can Sudbury not have a second 'sfn?'
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Chris SE.
Surely the channels used is a matter for the whole country, and just because Aldeburgh was historically A seems irrelevant. Sudbury has had several changes to its channels, and I for one have had to change aerials more than once as a result.
I suppose this is another plus for freesat. It provides the same variety of channels for all, rather than freeview which gets away with treating a large number of viewers as second class.
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Chris and Steve.
Many thanks, a further incentive to go to freesat. However, I think this is yet another example of an uncaring government which does nothing to protect consumers in so many areas. Freeview light customers are being discriminated against.
I have done further tinkering with aerials. Channel 37 remains the hardest to receive during these tropo conditions, due to appalling signal quality as opposed to strength. but when those conditions go, it almost delivers the strength and quality of the rest. I have made a very high gain aerial, [very long] which works better than other high gain aerials simply because it is more directional and is better at rejecting whatever is affecting 37.
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Steve,
thanks, fascinating, and I see the French have some powerful xmitters
I would still think the interference if that is what it is is more likely to come from Holland, but if there is no xmitter on 37, it can't be. On analogue we often had interference from there. With digital we just get 'no signal' so have no idea of the culprit.
How about Belgium?
I really do not want to attenuate a signal. I need the benefits of a high gain aerial.
Now that the tropo has finished, 37 has settled down.
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to the two Steves,
Thanks.
Whether Felixtowe uses one or not, I am interested to know what it means. Can they have some stations using 33 and some using 33+? If not, what is the point of it?
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thank you, Steve, but are you saying, for example, that you cannot use channel 33 for three times as many channels by plussing, minussing etc?
If this cannot be done, why are all transmitters not using centre channel?
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Friday 29 September 2023 11:37PM
Chris and Steve.
Thanks for all this info. Please clarify, you believe Rouncefall now transmits all channels? I have not found that info. Is it not going to cause problems having two adjacent transmitters using the same frequencies?
To get that French transmitter my aerial would have to be about 70 degrees off how it is set on Sudbury and pointing to Dover, which transmitter recently appeared but only briefly.
Tac is no use, zero reception in my situation, but aerials on it nearby, and on houses at tops of hills.
Have none of those appliances, and my aerial is some distance from neighbours.
I do not really know when signal q is 30%. I only experiment during the day in my garage. Evenings I am inside watching tv, or trying to, but 37 is the first to go.