|
||||||||
Mux 7 and 8 Hannington dead |
![]() |
|
|
Thread Tools | Search this Thread |
|
|
#1 |
|
Forum Member
Join Date: Dec 2001
Location: Hampshire
Posts: 8,075
|
Mux 7 and 8 Hannington dead
As observed at. 20:30 hrs
Any other txs affected? Or possibly atmospherics !? |
|
|
|
|
Please sign in or register to remove this advertisement.
|
|
|
#2 |
|
Forum Member
Join Date: Jul 2003
Location: Somewhere
Posts: 365
|
Its atmospherics, I've lost some muxes from CP as Rowridge is causing co channel. I've not quite got the channels from france yet, but they will appear at some point.
|
|
|
|
|
|
#3 |
|
Forum Member
Join Date: Dec 2001
Location: Hampshire
Posts: 8,075
|
Quote:
Its atmospherics, I've lost some muxes from CP as Rowridge is causing co channel. I've not quite got the channels from france yet, but they will appear at some point.
|
|
|
|
|
|
#4 |
|
Forum Member
Join Date: Feb 2015
Posts: 1
|
This is my first post on here!
![]() Come to think of it, I have had problems from Midhurst this Evening too! It was fine on UHF Ch. 56 at 6:40pm (Digital 3+4) , but when I went to switch on my TV again at around 7:20pm, it would not receive anything from that UHF Channel, but interestingly the BBCA Mux (UHF Ch. 55) was fine throughout! I don't know about the commercial muxes as they are not easily received where I live, which is on the West-Side of Fareham, Hants, close to the MF Mast about 1/2 Mile away from my house! I normally receive my TV from Rowridge (and live in the service-area of that) but I 'rigged-up' my Vision V10-36L aerial, with a 1-way Amp, to see what I can recieve from my Bedroom window today as it was a 'High Pressure' day; so it was just purely to test the performance of my aerial, so no one should be alarmed if they live in the service area of Midhurst. I did retune my TV back to the frequencies of Rowridge afterwards! I will check later on though if I can be bothered! |
|
|
|
|
|
#5 |
|
Forum Member
Join Date: Dec 2001
Location: Hampshire
Posts: 8,075
|
|
|
|
|
|
|
#6 |
|
Forum Member
Join Date: Jun 2007
Posts: 120
|
I'm having problems with Midhurst. Only PSB1, COM5 and COM6 are working. PSB2, PSB3 and COM4 have no signal. All channels have a signal strength of 8 or 9. The signal quality is 10 on the good channels and 0 on the bad. These observations are on my PVR but the TV is missing the same.
|
|
|
|
|
|
#7 |
|
Forum Member
Join Date: Mar 2005
Posts: 1,496
|
@ Andrew Murphy - I've sent you a private message.
|
|
|
|
|
|
#8 |
|
Forum Member
Join Date: Sep 2001
Location: Llanelli, South-West Wales
Posts: 590
|
Quote:
I'm having problems with Midhurst. Only PSB1, COM5 and COM6 are working. PSB2, PSB3 and COM4 have no signal. All channels have a signal strength of 8 or 9. The signal quality is 10 on the good channels and 0 on the bad. These observations are on my PVR but the TV is missing the same.
|
|
|
|
|
#9 |
|
Forum Member
Join Date: Aug 2012
Location: West Sussex
Posts: 1,519
|
Quote:
I'm having problems with Midhurst. Only PSB1, COM5 and COM6 are working. PSB2, PSB3 and COM4 have no signal. All channels have a signal strength of 8 or 9. The signal quality is 10 on the good channels and 0 on the bad. These observations are on my PVR but the TV is missing the same.
BBCBHD is completely dead 0% strength and quality. |
|
|
|
|
|
#10 |
|
Forum Member
Join Date: Oct 2002
Location: West Sussex (Crystal Palace)
Posts: 3,376
|
COM7 from Crystal Palace has been unusable this evening, presumably due to CCI on channel 33. This has never happened before that I can remember. COM8 on channel 35 is OK.
|
|
|
|
|
|
#11 |
|
Forum Member
Join Date: Mar 2008
Location: TheEssexSunshineCoast Clacton
Posts: 15,212
|
Lost the HD muxs on Dover and some channels such as Pick.
BBC and ITV are still there. |
|
|
|
|
|
#12 |
|
Forum Member
Join Date: Jun 2007
Posts: 120
|
All the Midhurst muxes are working again for me this morning. The problem looks as if it was atmospherics. http://www.bbc.co.uk/reception/news/item139 Quote:
Date: 29.12.2016 Last updated: 29.12.2016 at 11.47
We are aware of reception problems with BBC TV services, mainly in South Wales, South of England and Anglia regions. This problem is likely to be due to high pressure atmospheric weather conditions. Some viewers and listeners in these areas have experienced short term interference to BBC television services. This is being caused by a zone of high pressure, which causes problems to the links between transmitters and increases interfering signals in the area, which results in poor reception. The majority of the BBC's transmissions are not affected by this period of interference, as the BBC's networks are engineered to be generally very robust. Television viewers may experience slight occasional pixilation or break-up or loss of service. Cable and satellite services are not affected. |
|
|
|
|
|
#13 |
|
Forum Member
Join Date: Sep 2001
Location: Llanelli, South-West Wales
Posts: 590
|
Quote:
I'm losing a few channels the past couple of days. Sky News , RT, Horror Channel plus many others (signal strength was 10...but signal quality was about 1...but then at times it would go up too 10). Not so bad today but still signal quality is about 6...and not losing the channels like yesterday.
I meant to say I'm picking up from Kilvey Hill transmitter (Swansea - South West Wales). Channels seem 'more stable' this morning and back to 10 for signal strength & quality. I've had Freeview for many years but never had these problems like this before. Just shows what the weather can do to signals. |
|
|
|
|
#14 |
|
Forum Member
Join Date: Jan 2004
Location: Horsham, West Sussex
Posts: 496
|
Quote:
This is my first post on here!
![]() Come to think of it, I have had problems from Midhurst this Evening too! It was fine on UHF Ch. 56 at 6:40pm (Digital 3+4) , but when I went to switch on my TV again at around 7:20pm, it would not receive anything from that UHF Channel, but interestingly the BBCA Mux (UHF Ch. 55) was fine throughout! I don't know about the commercial muxes as they are not easily received where I live, which is on the West-Side of Fareham, Hants, close to the MF Mast about 1/2 Mile away from my house! I normally receive my TV from Rowridge (and live in the service-area of that) but I 'rigged-up' my Vision V10-36L aerial, with a 1-way Amp, to see what I can recieve from my Bedroom window today as it was a 'High Pressure' day; so it was just purely to test the performance of my aerial, so no one should be alarmed if they live in the service area of Midhurst. I did retune my TV back to the frequencies of Rowridge afterwards! I will check later on though if I can be bothered! |
|
|
|
|
|
#15 |
|
Forum Member
Join Date: Aug 2012
Location: West Sussex
Posts: 1,519
|
Back up and running on Midhurst here. However did panic first thing as no signal on any channel, but then I realised that my Sony TV had tried to retune itself and was trying to view BBC1 West from Bristol ! I have had this before on the TV that it does this automatic retune if it can't get a signal but there seems no way of stopping it.
My Humax PVR was fine as that I have disabled self tune. |
|
|
|
|
|
#16 |
|
Forum Member
Join Date: Aug 2012
Location: West Sussex
Posts: 1,519
|
Quote:
Turned on the TV (Midhurst) at 7pm last night and nothing at all from Digital 3+4 or BBC B, Com5 was fine... didn't try anything else. Thought it was a transmitter breakdown! Some weeks ago had exactly the same issue late on a Sunday evening. Hadn't checked the weather conditions so will do so in future when event occurs again. In the analogue days at least one got something rather than just 'No Signal'.................!
The problem last night is the first time I had seen this on DTT and that's dating back to the On Digital days. So must not have been viewing that Sunday. |
|
|
|
|
|
#17 |
|
Forum Member
Join Date: Dec 2001
Location: Hampshire
Posts: 8,075
|
Quote:
Midhurst definitely got the short straw in analogue days as IIRC BBC1 and ITV were same frequencies but reversed on Midhurst and Hannington. Absolutely stupid for two adjoining transmitters. But meant in summer you could have a week or so when high pressure caused cross channel interference making both unwatchable. So could only view them on Sky.
The problem last night is the first time I had seen this on DTT and that's dating back to the On Digital days. So must not have been viewing that Sunday. |
|
|
|
|
|
#18 |
|
Forum Member
Join Date: Oct 2002
Location: West Sussex (Crystal Palace)
Posts: 3,376
|
As with others, everything beck to normal today, 100% signal quality on COM7 whereas yesterday it was well below 20%.
|
|
|
|
|
|
#19 |
|
Forum Member
Join Date: Jan 2004
Location: Horsham, West Sussex
Posts: 496
|
Quote:
Analogue days Midhurst was co channel with Mendip for BBC 1 and ITV, and transposed with each other. Here in Basingstoke I could receive one or the other by turning the aerial one way or tother
|
|
|
|
|
|
#20 |
|
Forum Member
Join Date: Sep 2001
Location: Llanelli, South-West Wales
Posts: 590
|
Clear skies this morning means once again have lost a few channels (Sky News etc) Singnal strength is 10 but signal quality is jumping about from 10 to 2 so the picture is coming and going. This may have been asked before (& answered) but what is the difference between signal strength and signal quality? Seems too be the past week or so signal quality when we have clear cloudless skies the range jumps about from 10 to 2 then jumps to about 8 then down to about 2 again. But on cloudy days which we had over the New Year signal quality was a steady 10 (and the 10 wasn't from Len!!
)
|
|
|
|
|
#21 |
|
Forum Member
Join Date: Sep 2001
Location: Llanelli, South-West Wales
Posts: 590
|
Quote:
Clear skies this morning means once again have lost a few channels (Sky News etc) Singnal strength is 10 but signal quality is jumping about from 10 to 2 so the picture is coming and going. This may have been asked before (& answered) but what is the difference between signal strength and signal quality? Seems too be the past week or so signal quality when we have clear cloudless skies the range jumps about from 10 to 2 then jumps to about 8 then down to about 2 again. But on cloudy days which we had over the New Year signal quality was a steady 10 (and the 10 wasn't from Len!!
) |
|
|
|
|
#22 |
|
Forum Member
Join Date: Apr 2005
Location: Crawley, West Sussex
Posts: 9,295
|
Oddly, the forecast for tropospheric ducting shows no unusual activity at all for today for any part of the UK.
|
|
|
|
|
|
#23 |
|
Forum Member
Join Date: May 2004
Location: Reading
Posts: 27,884
|
Quote:
Clear skies this morning means once again have lost a few channels (Sky News etc) Singnal strength is 10 but signal quality is jumping about from 10 to 2 so the picture is coming and going. This may have been asked before (& answered) but what is the difference between signal strength and signal quality? Seems too be the past week or so signal quality when we have clear cloudless skies the range jumps about from 10 to 2 then jumps to about 8 then down to about 2 again. But on cloudy days which we had over the New Year signal quality was a steady 10 (and the 10 wasn't from Len!!
)Signal Quality is a measure of how corrupt or otherwise the data stream is. Essentially the lower the quality reading the more errors there are in the data. There is some correlation between strength and quality. A weak signal subject to noise can give a low quality reading as the noise corrupts the data. It is also possible for an excessively strong signal to cause problems with the first stages of the tuner. If you get overload here then that can generate interference corrupting the data hence leading to having a strength reading on 100% and quality of 0%! In addition interference from other signals, which can include distant TV transmitters on similar frequencies, can cause data corruption even though the strength readout is reasonably high. Atmospheric conditions can affect the transmission range meaning the signal travels far greater distances than it other wise would. Which could be when the weather is good more often than when it is poor. |
|
|
|
|
|
#24 |
|
Forum Member
Join Date: Mar 2007
Posts: 11,679
|
R.i.p.
|
|
|
|
![]() |
| Thread Tools | Search this Thread |
|
All times are GMT. The time now is 05:47.




)