All posts by Chris.SE
Below are all of Chris.SE's postings, with the most recent are at the bottom of the page.
Simon Quarry:
There no reports of any faults affecting any of the BBC transmitters that you may receive. Try to find any fault information about the commercial transmitters is like trying to find a needle in a haystack.
BBC FM transmitters are at Oxford (~NE), Sutton Coldfield (~NNW) & Rowridge (~S). If you are receiving Radio2, then you should get Radios 1,3, 4 and possibly a local station at least.
There are BBC DAB transmitters roughly to the NE of you (Boar's Hill), SW (Membury) and W of you (Blunsdon).
Commercial DAB coverage in your area is limited.
For DAB commercial transmissions see ukdigitalradio: Home there are transmitters are at Oxford, Blunsdon & Marlborough. There's a post code checker and link to a transmitter map there.
I would try moving your radio(s) around and perhaps try near windows with outlooks in the directions of the transmitters. If any of your radios have the capability for an external DAB aerial there's some indoor (some amplified) ones available.
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John:
In answer to your question, in theory yes, in practise no - because it would need to be done with a diplexer which would allow one channel group from one aerial, and another channel group from the other. These diplexers just don't to be available these days. If it were two different grouped aerials or if it was two different transmitters in different directions, neither using the same channels, then one might get away with a splitter/combiner but it's not a straight forward thing to do especially with differing signal strengths.
So to try and get an idea of what is going on, what is the strength you are getting on the other multiplexes?
Perhaps I should have explained that with too much signal and the front end getting overloaded, you can actually see a reduction the strength figure so you get the wrong impression about what's happening. That's why I was interested in the other figures and what happens if you can remove any additional 4G filter etc.
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Justin Eastham:
Firstly, a 5G filter for the 700MHz band will block your reception of COMs 7&8. Secondly, AFAIK there in no 700MHz 5G transmissions in Cardiff as they are currently only in the 3.4GHz band at present and what led you to think that there any 5G transmissions from the Wenvoe mast? Just because the 700MHz band has been cleared of TV transmissions at Wenvoe apart from the temporary muxes COMs 7&8, doesn't mean that there are already 700MHz 5G transmissions.
Without a full postcode, we can't advise what your predicted reception is like and whether PSB3 reception is more susceptible at you location. What is certain is that if your aerial is not correctly aligned, if there are corroded connections anywhere in your system, water ingress etc. that will not be helping.
I suggest you check all your coax plugs, connections, flyleads (frequently a problem) etc, unplug connectors check for corrosion or other problems and reconnect them. If you are able (sounds like you could be) also check that your downlead looks undamaged and that your aerial seems intact, connections ok and it's pointing in the correct direction.
Problematic connections, water ingress etc. can seem to affect reception of just an individual or several multiplexes.
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John Wren:
A lot of the Sony Channels are only transmitted on Local multiplexes see Channel listings | Freeview
There is a Local Multiplex at Belmont on UHF channel 32 but what the predicted reception is like at your location we can't tell without a full postcode.
Do you know what type of aerial you have? Are you receiving the COM7 multiplex OK?
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David Green:
Their official website is Home | FreeSports and the schedule is on Home | FreeSports tv-schedule.html and I note it says "Listings subject to change".
I doubt we can provide any real help on this except suggest you check things like did it record at the time slot you expected the programme to be on? What listing did you use - it may not have been accurate?
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John H:
The Planned Engineering link now redirects correctly.
New pdf's with the 2020 clearance events are now available - including Yorkshire!!
However, the Yorkshire Region on the Detailed View page is still "not found"!
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Gordon:
Certainly an interesting aerial which will have its uses in certain applications, and if you have room for it in a loft, well fine! This "self-adjusting amplifier" is interesting! Whether it's suitable in Roy's case however (and many others I could think of), the jury could still be out.
It's not purely roof attenuation that's the issue here, it's the fact that the COM 7&8 signals are getting less reliable at his location due to the final transmitters elsewhere moving to the SFN channels 55 & 56. No amount of "clever" gain will resolve that if the signal is suffering interference, it's all due to the way SFNs work, there's a limit to what can be achieved. Take a look at what is going on with DAB and this "problem". Mind you I'm no expert in this area, I can only go by what the experts say.
Also you mention "it has a wide receiving angle" and that may be precisely the issue in some cases. However one report says it has a narrow beamwidth, whereas other "specs" says it's 30deg.
As Roy hasn't given a full postcode, I can't comment on whether it could be worth trying, but judging by what Roy has been saying, I guess he might be able to make that judgment himself. It depends on the location of potentially interfering transmitters. I haven't seen any figures for Front to Back ratio for example which could be more important in some cases.
Your points about the reduced number of connection with an in-built amp is very valid and always worth taking into account. Its application is very much "horses for courses".
Roy:
aerialsand tv.com is one site we often recommend people look at for a lot of very useful information ;)
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Kari Gual:
You shouldn't have any problem with any of the multiplexes from Emley Moor (Yorkshire region) or indeed Bilsdale (Tyne Tees region) at your location. As both are in a very similar (~NE) direction from your location, you maybe tuned to a mix of multiplexes from both transmitters or indeed missing some because of the transmitter changes going on today, there's the possibility that some multiplexes may have been off-air or low power when you were retuning. Other possibilities are your sets memory may need clearing.
Best suggestion at this time is unplug the aerial and do a full retune which should clear the memory as no channels will be found. Reconnect the aerial and repeat the retune which will hopefully restore your channels.
If you have problems with the "wrong" region you may have to do a reset if your set would prompt for the region, or alternatively do a manual tune on the UHF channels for the region you want.
Emley Moor currently is 47, 44, 41, 51, 52, 48, 32, 56, 39 in the order PSBs1-3, COMs4-8, Local. There's a further retune event on 5th Feb.2020
Bilsdale is 21, 24, 27, 43, 46, 40, 55, 56 same order, no Local, no further retunes.
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Malcolm Lowe:
The problem might be that you have two Local "Light" transmitters near you, one at Poole, one at Canford Heath. Both require an aerial vertically polarised (rods vertical) but if the signals aren't rejected sufficiently by your horizontal aerial the set can still tune to them. Canford Heath is the weakest and most unreliable, if you happened to end up tuned to that you may only get those ITV channels BUT you should have a lot more that just ITV1 & 4 you should have others and Channel 4 and 5 etc. It sounds like your set's memory might need clearing.
Unplug your aerial and do a full automatic retune, no channels should be found and the memory should be cleared. Plug the aerial back in and carry out a retune again and see if this has restored all your channels.
You haven't said if your set has an HD tuner and can get the HD channels (normally!).
If having done the above hasn't resolved the problem, you may have a problem with your aerial installation or connections. I'd suggest you check all you coax plugs, connections, flyleads etc, unplug connectors check for corrosion or other problems and reconnect them. See what signal strengths and quality you are getting for the multiplexes shown in your TV's tuning section, this might indicate potential issues with your aerial or downlead. Also check that your downlead looks undamaged and that your aerial seems intact and pointing in the correct direction.
Problematic connections, water ingress etc. can seem to affect reception of just an individual or several multiplexes.
Having done that, when you go to your set's tuning section it should give you the choice of doing an Automatic Tune or a Manual Tune, does it not do that? If it does select Manual Tune, it should then allow you to choose the UHF Channels to tune, so select each of the channels in turn that I listed in my previous post for you.
Post back again if you are still having problems.
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Tuesday 12 November 2019 10:48AM
ian selmes:
Radio 5 doesn't broadcast on DAB anywhere in the country except overnight on selected local radio stations.