I have two Humax Freesat + HDRs. I cannot get Channel 4 Hd or Men & Movies on either box. The signal strength and quality are reading zero. All other channels seem fine with good signal levels.
Any advice please?
Any advice please?
No Channel 4 HD
Tried that this morning to no avail. Lost all signal as consequence for a while. Now on BBC one I have reset the dish to give me 90% strength and 90% quality but still no signal on Channel 4 HD.
Why is Channel 4 HD different to all other channels.?
Why is Channel 4 HD different to all other channels.?
Maybe one of the geeks might know but 4HD could be on a different satellite meaning its slightly more out of line, other than that, I dont know.
Originally Posted by Flyer 10:
“Maybe one of the geeks might know but 4HD could be on a different satellite meaning its slightly more out of line, other than that, I dont know.”
“Maybe one of the geeks might know but 4HD could be on a different satellite meaning its slightly more out of line, other than that, I dont know.”
Any friendly "Geeks" out there as Flyer 10 suggested?
Sounds like an alignment problem - don't know where you are located but you should be getting BBC with 100% signal and quality strength. Men & Movies and 4HD are both on Eurobird 1 which is at 28.5º - the Astra birds are at almost the same location at 28.2º - normally this shouldn't be a problem with a well aligned dish. However Eurobird occasionaly has problems with signal strength - I had massive pixalation on Friday on a couple of the non-Freesat Eurobird channels on one transponder - the others were fine.
So a bit of tweaking is probably needed.
So a bit of tweaking is probably needed.
Originally Posted by Night Watchman:
“Sounds like an alignment problem - don't know where you are located but you should be getting BBC with 100% signal and quality strength. Men & Movies and 4HD are both on Eurobird 1 which is at 28.5º - the Astra birds are at almost the same location at 28.2º - normally this shouldn't be a problem with a well aligned dish. However Eurobird occasionaly has problems with signal strength - I had massive pixalation on Friday on a couple of the non-Freesat Eurobird channels on one transponder - the others were fine.
So a bit of tweaking is probably needed.”
“Sounds like an alignment problem - don't know where you are located but you should be getting BBC with 100% signal and quality strength. Men & Movies and 4HD are both on Eurobird 1 which is at 28.5º - the Astra birds are at almost the same location at 28.2º - normally this shouldn't be a problem with a well aligned dish. However Eurobird occasionaly has problems with signal strength - I had massive pixalation on Friday on a couple of the non-Freesat Eurobird channels on one transponder - the others were fine.
So a bit of tweaking is probably needed.”
Thank you! I live in West London.
You may well have put your finger on it. I tried to realign the dish but any movement to the east will fall foul of my neighbours large old oak tree. It seems that I am just about able to "see" 28.2 degrees before the tree blocks the signal. This will also explain why I am not getting a100% signal on BBC One. The rate this oak is growing will soon block me completely.
Originally Posted by fixerman:
“Thank you! I live in West London.
You may well have put your finger on it. I tried to realign the dish but any movement to the east will fall foul of my neighbours large old oak tree. It seems that I am just about able to "see" 28.2 degrees before the tree blocks the signal. This will also explain why I am not getting a100% signal on BBC One. The rate this oak is growing will soon block me completely.”
“Thank you! I live in West London.
You may well have put your finger on it. I tried to realign the dish but any movement to the east will fall foul of my neighbours large old oak tree. It seems that I am just about able to "see" 28.2 degrees before the tree blocks the signal. This will also explain why I am not getting a100% signal on BBC One. The rate this oak is growing will soon block me completely.
”
Go to http://www.dishpointer.com/ locate your property and exact dish position and in turn 28.2E and 28.5E and you will see the exact direction and the tree. There is also an obstacle calculator which tells you the hight the satellite signal will be at that point.
Originally Posted by REPASSAC:
“Go to http://www.dishpointer.com/ locate your property and exact dish position and in turn 28.2E and 28.5E and you will see the exact direction and the tree. There is also an obstacle calculator which tells you the hight the satellite signal will be at that point.”
“Go to http://www.dishpointer.com/ locate your property and exact dish position and in turn 28.2E and 28.5E and you will see the exact direction and the tree. There is also an obstacle calculator which tells you the hight the satellite signal will be at that point.”
Thank you for that! It is incredible. It shows me that the tree is just beginning to cause an obstruction. My only option is to move the dish further to the west but that would mean a new cable run. I can do without Channel 4HD for now. My picture quality on SD on the Humax is superb.
Thank you again for your very valuable advice.
not sure if a anyone else noticed, but CH4 HD on freesat needs a strong signal to avoid picture breakup. I noticed a couple of times when I had my old LNB a few bits of pixels even though signal bar was about half way. Now the LNB is changed and was aligned with signal meter, I am getting very nearly full signal bar on this channel and no pixel problems at all. Maybe the DVB-S2 signal that CH4 hd uses is less stable in some way? Prior to the LNB change other SD channels were fine working ona half signal bar reading-only giving out when the bottom of the scale was reached.
Originally Posted by David (2):
“not sure if a anyone else noticed, but CH4 HD on freesat needs a strong signal to avoid picture breakup. I noticed a couple of times when I had my old LNB a few bits of pixels even though signal bar was about half way. Now the LNB is changed and was aligned with signal meter, I am getting very nearly full signal bar on this channel and no pixel problems at all. Maybe the DVB-S2 signal that CH4 hd uses is less stable in some way? Prior to the LNB change other SD channels were fine working ona half signal bar reading-only giving out when the bottom of the scale was reached.”
“not sure if a anyone else noticed, but CH4 HD on freesat needs a strong signal to avoid picture breakup. I noticed a couple of times when I had my old LNB a few bits of pixels even though signal bar was about half way. Now the LNB is changed and was aligned with signal meter, I am getting very nearly full signal bar on this channel and no pixel problems at all. Maybe the DVB-S2 signal that CH4 hd uses is less stable in some way? Prior to the LNB change other SD channels were fine working ona half signal bar reading-only giving out when the bottom of the scale was reached.”
I get plentry of signal strenth but poor quality - I suspect low bit rate.
Do they now waste bandwidth transmitting one version of CHN 4 HD for Freesat and another for access via a Sky box and viewing card?
Or even more for regional adverts?
Automan.
Or even more for regional adverts?
Automan.
Originally Posted by REPASSAC:
“I get plentry of signal strenth but poor quality - I suspect low bit rate.”
“I get plentry of signal strenth but poor quality - I suspect low bit rate.”
It is low, about 8.7Mbps, but I've yet to see any obvious signs of bad artifacting, they must be using a very cutting edge encoder, pity BBC and ITV can't learn from it
.
Originally Posted by Automan:
“Do they now waste bandwidth transmitting one version of CHN 4 HD for Freesat and another for access via a Sky box”
“Do they now waste bandwidth transmitting one version of CHN 4 HD for Freesat and another for access via a Sky box”
No there's just one.
Nobody's mentioned this - that area of signals is also subject to interference from wireless devices such as cordless phones or possibly routers, which normally wouldn't be enough to disrupt signal, but it could be worsened if your cables aren't great.
I have been posting about the same problem on another thread ...
I have left out a post by David(2) pointing me here...
The only interfering signals I can find are 12609V @ 30.5 E on Arabsat 5A or 12600V @ 36.0 E on Eutelsat W7 ?
Originally Posted by Myself:
“I don't know if it is related - but since re-tuning to get BBC HD on DVB-S2 - CH4 HD has become terrible (bad signal - high BER - cycling between OK and a plasticene mess) - it does appear to be the only Freesat channel showing problems. Are there other channels (Freesat or FTV) on the same satellite (section) so I can check? (We have light rain at the moment and it is showing "No Signal" most of the time with sporadic pictures and or sound)
To be honest - we have Freeview HD so don't normally watch HD on satellite - so I don't know when the problems actually started.
I did tune it in manually before it was launched (and just after it was launched) and it was perfect then so it is not a problem with the high frequency or the abnormal symbol rate (??).
PS I have tried re-tuning manually (on 'other sat') and it doesn't tune - trying both 12606 and 12607 (originally worked only on 12606 although it always stores 12607).”
“I don't know if it is related - but since re-tuning to get BBC HD on DVB-S2 - CH4 HD has become terrible (bad signal - high BER - cycling between OK and a plasticene mess) - it does appear to be the only Freesat channel showing problems. Are there other channels (Freesat or FTV) on the same satellite (section) so I can check? (We have light rain at the moment and it is showing "No Signal" most of the time with sporadic pictures and or sound)
To be honest - we have Freeview HD so don't normally watch HD on satellite - so I don't know when the problems actually started.
I did tune it in manually before it was launched (and just after it was launched) and it was perfect then so it is not a problem with the high frequency or the abnormal symbol rate (??).
PS I have tried re-tuning manually (on 'other sat') and it doesn't tune - trying both 12606 and 12607 (originally worked only on 12606 although it always stores 12607).”
Originally Posted by Myself:
“The signal condition shows very low or even non-existent signal on the strength bar and the quality occasionally (at the moment) flashes up yellow and about 30%. I use a 60cm (oval) dish which will be tighter focus on azimuth - is the channel 4 TXP on a satellite with a slightly different (or varying) azimuth - although it would cycle over 24 hours not a few seconds (guessing ??). Satellite wobbling slightly and my dish needs better alignment? I will try to find other channels on the same satellite (panel group) to see if they are problematic too or if it is just the TXP.
The problems seen are like long term signals just on the 'cliff edge' - people say the cliff edge is sharp - but we once had 14 hours of 'green plasticene' pictures in the early days of Freeview - and the interference I see is just the same - ie satellite signal hovering on the edge of the Freesat DVB cliff edge.”
“The signal condition shows very low or even non-existent signal on the strength bar and the quality occasionally (at the moment) flashes up yellow and about 30%. I use a 60cm (oval) dish which will be tighter focus on azimuth - is the channel 4 TXP on a satellite with a slightly different (or varying) azimuth - although it would cycle over 24 hours not a few seconds (guessing ??). Satellite wobbling slightly and my dish needs better alignment? I will try to find other channels on the same satellite (panel group) to see if they are problematic too or if it is just the TXP.
The problems seen are like long term signals just on the 'cliff edge' - people say the cliff edge is sharp - but we once had 14 hours of 'green plasticene' pictures in the early days of Freeview - and the interference I see is just the same - ie satellite signal hovering on the edge of the Freesat DVB cliff edge.”
Originally Posted by Myself:
“NHK World HD same also Eurobird 1 with 27000 S/s is also showing some glitching and varying BER - perhaps they have steered the panel a bit or the power is down as they ramp up the number of TXPs??
Shame - interesting programme on the Earthquake on now!
What is the position of the other Sat in question? - my dish was able to pick up channels on BADR (@ 26deg) when I used a cheap FTV box - do I need to tweak the dish direction to a higher easting?
The Dish is oval - to give a wider E-W spread than a round dish would give (??)
I noted earlier that "nhk Worldwide HD" is also bad (but not so bad) does the same "co-channel" (or "co-frequency") problem arise - or is its problem only because of the particular settings it shares with CH4 HD ?
Are there other Freesat and FTV channels that are similarly affected by "co-channels" (to try and tie down the problem) ?
“NHK World HD same also Eurobird 1 with 27000 S/s is also showing some glitching and varying BER - perhaps they have steered the panel a bit or the power is down as they ramp up the number of TXPs??
Shame - interesting programme on the Earthquake on now!
Originally Posted by Muzer:
“No - the reason is, in fact, that a nearby satellite uses a similar frequency for one of its transponders, so alignment is more important to reduce the effect of the interference from the other satellite.”
“No - the reason is, in fact, that a nearby satellite uses a similar frequency for one of its transponders, so alignment is more important to reduce the effect of the interference from the other satellite.”
What is the position of the other Sat in question? - my dish was able to pick up channels on BADR (@ 26deg) when I used a cheap FTV box - do I need to tweak the dish direction to a higher easting?
The Dish is oval - to give a wider E-W spread than a round dish would give (??)
I noted earlier that "nhk Worldwide HD" is also bad (but not so bad) does the same "co-channel" (or "co-frequency") problem arise - or is its problem only because of the particular settings it shares with CH4 HD ?
Are there other Freesat and FTV channels that are similarly affected by "co-channels" (to try and tie down the problem) ?
Originally Posted by Muzer:
“I can't actually remember, but it may well be - I'll wait until someone more knowledgeable confirms.”
”
“I can't actually remember, but it may well be - I'll wait until someone more knowledgeable confirms.”
I have left out a post by David(2) pointing me here...
The only interfering signals I can find are 12609V @ 30.5 E on Arabsat 5A or 12600V @ 36.0 E on Eutelsat W7 ?
