All posts by Chris.SE
Below are all of Chris.SE's postings, with the most recent are at the bottom of the page.
Peter Gagen:
I'm afraid a lot of the DAB pages here do not work properly. The site owner hasn't had time to keep up with all the 700MHz Clearance changes so I suspect issues like this will be quite low on the priority list.
Was there any particular information that you were after?
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megan tann:
There could be a multitude of reasons for that from problems with your aerial system, downlead, connections etc. to transmitter maintenance - a lot of transmitters currently have Planned Engineering - or you may not be in a particularly good reception area for some multiplexes.
To be able to give some constructive help, we need a full postcode to see what the Freeview Predicted Coverage Checker is giving for predicted reception at your locale, and a bit more precise information about which channels you especially have problems with.
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Ian Hopwood:
Sorry that no-one seems to have previously spotted your post.
LBC is on the Digital One multiplex which is broadcast from Lark Stoke. Trying to find information about faults or maintenance with commercial DAB multiplexes seems to be a big issue these days and I've not spotted any reports that may be of any help.
I can only suggest that if the issues continue you try contacting LBC who should be able to contact the right sections of Arqiva, and/or email Arqiva at radio@arqiva.com
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Having said no-one had spotted your post, it did seem familiar. I had previously replied but the link had taken me to the Icomb Hill page and I couldn't find your original post. I'm afraid a lot of the DAB pages here are not working correctly.
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Peter Sharpe:
I can't find any reports from the BBC about issues with 12B from Alexandra Palace, and trying to find information about faults or maintenance with commercial DAB multiplexes seems to be a big issue these days and I've not spotted any reports that may be of any help.
It's worth remembering that virtually all DAB operates as SFNs when there is more than one transmitter for an ensemble, so issues/maintenance at another nearby transmitter, especially synchronisation issues, can affect the signal you receive which could increase or decrease depending on your exact location.
Whilst remembering that transmitter maintenance could continue for a while, I can only suggest that if the issues continue for a longer period you email Arqiva at radio@arqiva.com
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Alexander :
Whilst you've posted on the DAB Radio page, it's obvious you mean the Freeview transmitter.
It's possible that there's some engineering work taking place as the BBC reported a fault yesterday - From 10:35pm to 10:53pm on 19th May 2020 BBC A Reduced quality due to a fault &
From 10:35pm to 10:53pm on 19th May 2020 BBC B HD Reduced quality due to a fault.
Whatever work may be taking place it might affect any of the multiplexes and may well be the cause of what you are seeing. How it might affect your reception of a given multiplex will depend on your precise location - we'd need a full postcode to look at the Freeview Detailed Coverage checker to see predicted reception.
There's also some pockets of moderate to strong Tropospheric Ducting around at present which may not be helping matters resulting in interference from other transmitters.
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Chris:
I'm assuming the receiver you are using does have a T2 HD tuner ;)
It that location I'd have expected that you wouldn't have any problems with reception of any of the multiplexes from Rowridge. It's worth remembering that it has H and V polarised signals, but COMs 7&8 are only horizontal, COMs 4-6 are 1/4 of the power of the PSBs in the horizontal polarisation and COMs 7&8 about half that again!!
As soon as I saw your photo of the aerial, I thought, that looks like a Triax. I'm pretty certain that it's not a Group A, but it could be a Group K rather than a T or Wideband. The thing that adds to the uncertainty so far is the exact style of the reflector doesn't match the number of directors (7) for the Group T/Wideband, I might have to carry on searching.
If you are able to look at the colour of the bungs in the ends of the aerial with binoculars or a telescope, that may give a clue but I've heard of black bungs being used on non-wideband aerials, so that may not help!
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Chris:
This is Triax's Group T https://www.triax.uk/prod…-box
Here is the Group K but it only has 6 directors https://www.triax.uk/prod…-box
Note the difference in the reflectors, but that doesn't mean the Group T hasn't had the other style reflector at some time.
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Colin lewis:
We can only offer some constructive advise if we have some idea as to which transmitter(s) and multiplexes you might be able to receive and what the predicted reception is for your location. To look at the Freeview Detailed Coverage Checker we need a full postcode.
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Monday 18 May 2020 10:52PM
Gerald Lawrence:
Sutton Coldfield is listed for Planned Engineering with "Possible weak signal" which, depending on your precise location may well seem like No Signal. It's best to expect this situation to possibly come and go whilst the Planned work is in progress.