hi there, recently had new aerial in our block, new points, top of the range cable. no problems before this change but not Mux 1 and Mux B channels are fluctuating wildly betwen 100 to 45 %, actually mux b just goes between 40-60% really fast, causing glitches every minute.
Avonline came and turned signal strength down a bit as it was high but this not resolved problem...
neighbour also has it.. these are best two answers so far on digitalspy, anyone agree?
It sounds like there is overloading somewhere in the amplifiers/distribution system (due to high power analogue still being transmitted from Crystal Palace). Check the analogue side of your TV (UHF channels 23, 26, 30 & 33). Do you see any strange patterning on the screen? If so, it's a sure sign there is signal overload. This could be "dazzling" the input side of your Freeview TV/box, and causing the break-up you're getting. Also check with neighbours and see if they have the same problem. If so, get the installers back and tell them to put the system right.
It's the signal quality that matters most, more than the signal level. If/when you get the installers to come back they need to adjust the RF gain so that the signal quality is stable and gives a high reading, on the most troublesome MUX. They should know about things like that, if they're competent.
Sunday 10 April 2011 4:26PM
hi there, recently had new aerial in our block, new points, top of the range cable. no problems before this change but not Mux 1 and Mux B channels are fluctuating wildly betwen 100 to 45 %, actually mux b just goes between 40-60% really fast, causing glitches every minute.
Avonline came and turned signal strength down a bit as it was high but this not resolved problem...
neighbour also has it.. these are best two answers so far on digitalspy, anyone agree?
It sounds like there is overloading somewhere in the amplifiers/distribution system (due to high power analogue still being transmitted from Crystal Palace). Check the analogue side of your TV (UHF channels 23, 26, 30 & 33). Do you see any strange patterning on the screen? If so, it's a sure sign there is signal overload. This could be "dazzling" the input side of your Freeview TV/box, and causing the break-up you're getting. Also check with neighbours and see if they have the same problem. If so, get the installers back and tell them to put the system right.
It's the signal quality that matters most, more than the signal level. If/when you get the installers to come back they need to adjust the RF gain so that the signal quality is stable and gives a high reading, on the most troublesome MUX. They should know about things like that, if they're competent.