Good evening. I am coming to the end of my fairly good electronics knowledge. We have 3x TV's 1x HD box and 1x HDD PVR and after a lot of weak signal/poor picturequality (breaking up) since Friday 25th Oct 2013 (before the bad weather), all the appliances have stopped receiving (from Stockhill southwest) ch25, ch26 & ch28 from Sunday. The TVs are all picking up signal strength (5-6 out of 10) but not even 1% of signal quality (the HD Box shows 60% quality and 0% strength!), whereas, ch22 & ch23 are picking up 8-10 out of 10 on strength and 45% - 90% on quality. Unfortunately none of my neighbours point/use this transmitter. I have a standard 4 way booster (amp) with variable gain (5-20dB) in the loft which has been set on 20dB over the past 3 years and has been working very well upto now. I have tried turning it down towards 5dB but it losses all signals at around 12dB. I have even purchased and fitted an at800 filter (moving it around TV to TV) to no avail. What am I missing? Has the relay transmitter nearby been turned up, pushing my signal away? PS. Ariel is mounted on chimney bracket.
Monday 28 October 2013 11:22PM
Exeter
Good evening. I am coming to the end of my fairly good electronics knowledge. We have 3x TV's 1x HD box and 1x HDD PVR and after a lot of weak signal/poor picture quality (breaking up) since Friday 25th Oct 2013 (before the bad weather), all the appliances have stopped receiving (from Stockhill southwest) ch25, ch26 & ch28 from Sunday. The TVs are all picking up signal strength (5-6 out of 10) but not even 1% of signal quality (the HD Box shows 60% quality and 0% strength!), whereas, ch22 & ch23 are picking up 8-10 out of 10 on strength and 45% - 90% on quality. Unfortunately none of my neighbours point/use this transmitter. I have a standard 4 way booster (amp) with variable gain (5-20dB) in the loft which has been set on 20dB over the past 3 years and has been working very well upto now. I have tried turning it down towards 5dB but it losses all signals at around 12dB. I have even purchased and fitted an at800 filter (moving it around TV to TV) to no avail. What am I missing? Has the relay transmitter nearby been turned up, pushing my signal away? PS. Ariel is mounted on chimney bracket.