All posts by John Durrell
Below are all of John Durrell's postings, with the most recent are at the bottom of the page.
Hi,
Well I think there are 1080p transmissions for these reasons.
1) I tried the same i-c an HD box in London (Crystal Place Transmitter) on a Sony Bravia, it reported 1080P. The Sony set also has its own HD tuner which reports 1080P.
2) Tried the same box at neighbours in Ringsend on different Sony Bravia it also reported 1080P. This set also has its own HD tuner and it reports 1080P.
My Sharp Aquos plays Blurays in 1080P via HDMI but the i-Can HD box can only sustain 1080i on this TV.The i-Can has a setting to change the output and when I set it to1080P it cannot sustain the picture and sound. It will come on for a few seconds reporting 1080P and then the screen will go blank for a further few seconds. If the two Sony's are falsely reporting 1080P then that solves the issue. However if the broadcast is in 1080P then I wonder why I can't get it? Is it the aerial?
Any suggestions would be much appreciated.
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Hi,
Sorry for such a long post. I had originally posted this message on the Limavady transmitter site but am now pretty sure that our signal comes from Divis, but not 100% sure.
Since the N.Ireland switch over I can receive all the HD channels but in 1080i. My neighbour about 150 yards away can receive in 1080P (when channels are being broadcast in 1080P). I live in Ringsend not far from Limavady (10 miles) but I think (not sure) that my signal comes from Divis as we have a mountain in between us and Limavady. I have an i-Can HD set-top box running a Sharp Aquos, I have tried this box at my neighbours it gets 1080P there running through his Sony Bravia . My aerial was a Yagi type high gain red plastic bung. I was getting a signal strength of 65% same as my neighbour. I then tried a Philex 27887D SLx 32 Element Digital Wideband black plastic bung. This aerial made no difference except the signal strength was slightly lower at 62%. Both my neighbour and I use a SLx 8 way distribution box to feed the signal around the house. I have also tried by bypassing the distributor with no difference. My question is why can I not receive 1080P? Am I using the wrong aerial? Do I need an aerial with more elements or am I missing a trick somewhere else.
My reasoning for thinking that there are sometimes1080p transmissions (BBC HD seems to have the most) and that the i-Can box is OK for their reception is based on the tests I carried out below.
1) I tried the same i-c an HD box in London (Crystal Place Transmitter) on a Sony Bravia, it reported 1080P. The Sony set also has its own HD tuner which reports 1080P.
2) Tried the same box at neighbours in Ringsend on different Sony Bravia it also reported 1080P. This set also has its own HD tuner and it reports 1080P.
3) My Sharp Aquos plays Blurays in 1080P via HDMI.
4) However the i-Can HD box through HDMI can only sustain 1080i on this TV.
5) The i-Can has a setting to change the output and when I set it to1080P it cannot sustain the picture and sound. It will come on for a few seconds reporting 1080P and then the screen will go blank for a further few seconds. If the two Sony's are falsely reporting 1080P then that solves the issue. However if the broadcast is in 1080P then I wonder why I can't get it? Is it the aerial?
If anyone can verify that Divis is my transmitter and that indeed 1080P is being transmitted that would be very helpful. If this is the case it seems that both aerials cant sustain 1080P and therefore would a wideband aerial with more elements do the trick? Any suggestions would be much appreciated.
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Many thanks to Mike Dimmick for his very detailed post. From what Mike has said it seems to me that the interaction of the TV and external i-Can receiver is the issue. The Sharp Aquos TV was bought in 2007 and plays blurays perfectly well in 1080p but I suppose it is getting a pure signal. From what Mike has said the broadcast signal is slightly different and I imagine that the technology in the TV cannot cope with this. The answer seems to be a new TV when this one 'dies'. Thanks agin Mike for all your help. I can now stop worrying about aerials.
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Sunday 4 November 2012 12:38PM
Coleraine
Hi,
Since the switch over I can receive all the HD channels but in 1080i. My neighbour about 150 yards away can receive in 1080P (when channels are being broadcast in 1080P). I live in Ringsend not far from Limavady (10 miles) but I think (not sure) that my signal comes from Divis as we have a mountain in between us and Limavady. I have an I-Can HD set-top box running a Sharp Aquos, I have tried this box at my neighbours it gets 1080P there running through a Sony Bravia . My aerial was a Yagi type high gain. I was getting a signal strength of 65% same as my neighbour. I then tried a Philex 27887D SLx 32 Element Digital Wideband Aerial made no difference except the signal strength was slightly lower at 62%.. Both my neighbour and I use a SLx 8 way distribution box to feed the signal around the house. My question is why can I not receive 1080P? Am I using the wrong aerial? or am I missing a trick somewhere else. Many thanks for any help you can give me.