All posts by Chris.SE
Below are all of Chris.SE's postings, with the most recent are at the bottom of the page.
Steve:
I presume you mean the HD channels on the BBCB/PSB3 multiplex ie. BBC1,2,ITV,Ch4,Ch5 HD etc. as you are unlikely to get any HD channels from the COMs 7 & 8 multiplexes from any transmitters.
Is the problem continuing or has it cleared up now?
You should have no problems with reception from the Bromsgrove transmitter, there are currently no faults or engineering but there was some last month as you can see from posts before yours.
If you are getting your signals from Bromsgrove, your aerial should have the rods vertical and be pointing a fraction N or NW (321deg.), but I note that there is predicted reception at your location from the Wrekin transmitter which requires an aerial with rods horizontal pointing at 318deg. at your location, which uses the SAME UHF channels for the PSB multiplexes !!!
It can happen that signals have their polarisation altered by atmospheric and other conditions by the time they reach a receiving aerial so interference might be possible, but I would have expected you to see issues with other SD channels as well. I also think it's not very likely unless your aerial has moved or is not positioned precisely. Just have a look at it and check.
If however you are getting your signals from Sutton Coldfield, aerial horizontal pointing roughly NNE (27deg.) then there is some Planned Engineering with "Possible weak signal".
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Previous post should have read "your aerial should have the rods vertical and be pointing a fraction N OF NW (321deg.)", not N or NW !
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H Wright:
Looking at your predicted reception I can see why you need the masthead for Midhurst. Out of curiosity does the checker give a worse prediction for Heathfield if you also put in your house number (no need to post it here). IIRC on some previous checks I made in your locale there's a few hills around!
Good luck with the adjustments.
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April:
I can't find any reported faults for all the local transmitters, it was several days ago now, but I doubt whether there was any Planned Engineering either as it would have generated a fault if the transmitter(s) were/went off -air.
It's always possible that it was some sort of local interference, unless you are right next door to that development and they were using some equipment generating interference, I would doubt it has anything to do with that.
I assume your reception has returned to normal?
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John:
It is strange that it's only 626Mhz. But IIRC you had a similar issue even when it was inadvertently tuned to Darvel on 530Mhz, so it's not just a frequency dependant thing. Aerials can have different polar responses (& side lobes etc) at different frequencies. I wonder if it has something to do with the transmission mode for HD. Do you get any issues with HD channels on the COM 7 or 8 multiplexes - ie BBC News HD, BBC4 HD, 4seven HD, Quest HD and try comparing that to the SD channels on those muxes eg 5STAR+1, 5USA+1 etc.?
In any event, if you get some issues as they go overhead and as the landing is to the back of the aerial then my guess would be two things. A reduced vertical beamwidth and an improved Back to Front ratio is needed. I don't think your current aerial is that good on either of those two. As I previously mentioned positioning the aerial so that the house or some other building blocks the landing path but not the path to the transmitter could help with the landing issue, but not the overhead.
You can get reduced vertical beamwidth by stacking two aerials vertically but I'm not sure how much an improvement you get on the Front to Back ratio without checking - a bit rusty on that sort of thing!
Whereas a log periodic (log 36) will give significant improvement on both but it has slightly less gain. Talking to a local aerial installer would certainly be a good idea, but if it's not one who is familiar with these sorts of issues, I'd try another.
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CARL READE: (& Denis:)
Now that you mention it, I do recall posting that the Saorview channels had (should have) moved to 42 & 45 on October 1st on the Divis page. I also provided a couple of links which could be of some use -
http://coverage.2rn.ie/in….php
Saorview
I was also thinking that an Inductive Splitter/Combiner would be better than a conventional one as you wouldn't get the same larger insertion loss, but only needed if the Multiswitch doesn't have more than one UHF input (one I think is normally the case). However some extra amplification is certainly needed if the reception on the ground floor is already problematic.
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Peter Ingram:
The simple answer is, if you don't get it now, then no, it's not very likely. Sony have chosen to broadcast this and some of its other channels only on Local Multiplexes, see Channel listings | Freeview , and whilst there is two at Sutton Coldfield, neither are believed to radiate in your direction and both are low power. There's only one change at Sutton Coldfield on 30th October, it's a small increase in power of one local multiplex UHF ch.48 from 10kW to 15kW.
You can confirm the predicted reception at you location by putting your postcode into the DigitalUK checker About us | Freeview
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phillip k harrison:
LCN 90 is on a Manchester Local mux, the rest are on HD multiplexes see Channel listings | Freeview
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Clive shephard:
I can find no reports of faults or transmitter maintenance, are you still having problems? Is it all multiplexes you are having problems with or just specific ones?
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Sunday 27 October 2019 11:10PM
Brian Bradley:
I assume you mean you've followed the retune instructions etc as I cannot find a previous post from you.
When did you lose reception of channel 48 - The Sony Channel (was called True Entertainment)?
Sony have made several changes to their channels see Help | Freeview and Help | Freeview
The Sony Channel is only available in areas where the transmitter has a Local multiplex and there's a local channel at LCN 7 (or 8). If you get your signals from the Nottingham transmitter, there is a local multiplex on UHF ch.50 but we need a full postcode to see what the predicted reception given by About us | Freeview at your location. You may not be able to get it.