All posts by Nick
Below are all of Nick's postings, with the most recent are at the bottom of the page.
does anyone know why I cannot find Radio Caroline on the radio channels on freeview? It says it is on 277
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Steve,
thanks for that. What a shame they don't tell us that. My box is not connected to internet. Rather defeats the object of freeview via an aerial.
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I am still having trouble with the mux on c37. Whichever aerial, the sig quality figure varies widely from 30% up to 80% in seconds. This time of year I can discount tropo.
I have also noticed that the aerial must be very precisely lined up for this channel, a minor movement loses the signal quality, [and thus the reception] whereas the other muxes allow the aerial to be several degrees amiss.
Any ideas, please? Is it transmitting from the same mast? Is its aerial lower?
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Steve,
that was quick, and I do not claim to understand it all, but there is no 'tropo' at present to bring in distant stations.
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Steve / Chris.
Thanks for all this. I am not as expert as you two, so please tell me why ch 37 should be more affected than others? You are saying 37 may have less power in my direction? If so, why does the site not say so? As for tropo, There has been some lately now and then, I know because if I swing the aerial round to Dover I pick up two muxes. But I do my tests when I cannot pick up Dover, with the same results.
This filter is designed only for C37? I thought mobiles etc now used the channels which were taken away from freeview, [49 upwards.]
Does any of this explain why 37 is so fussy that the aerial be so pinpointed on the transmitter whilst the other channels allow several degrees either way?
It is the signal quality, not strength, that lets me down....sudden drops from 80 to 30.
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Chris and Steve,
Thank you for your efforts. I will see if I can get a free filter though I really cannot believe low power xmitters in Holland are doing this, particularly when there is no tropo and they are also using other Sudbury channels.
I assume that on the mast, each mux has its own aerial. Could 37's be lower?
Yes, when the quality figure suddenly drops it first pixelates then disappears.
I have to have the aerial spot on to get 37. It is far more fussy than the other channels. [I am speaking re quality. The signal strength is not nearly so fussy.]
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Chris
oh, thanks. how come shoving 100Kw from one mux channel into another channel does not go bang!?
If there are ten thousand people watching a tv channel and that number suddenly increases to a million, do they each get a lower signal? This may be simplistic but with wi fi if too many are on one router the signal gets dire.
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thanks, Steve.
Can you think of why I may be having signal quality problems with the mux on channel 37 and why I have to align the aerial precisely for this channel? If I don't, the quality plummets to 30% and I lose the signal completely, whilst the strength remains quite high. The other channels allow moving the aerial several degrees either side..
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Chris SE,
thanks. No I have not. I do not see how a filter designed for a different frequency would help. In fact I fear if anything it may attenuate the channel I want. I can also think of no logical reason that for this channel the aerial must be precisely aligned or why the QUALITY plummets to 30%, ie channel says 'no signal' when it is not.
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Tuesday 31 October 2023 11:19PM
Chris SE,
thanks.