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All posts by Chris.SE

Below are all of Chris.SE's postings, with the most recent are at the bottom of the page.


Grant:

Thanks for the update, if you need further help, do post back.

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Mark Carter:

And if you provided a full postcode and which transmitter you receive (if you know) we could tell you if it's currently listed with any faults or has Planned Engineering.

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Ken Moore:

The transmitter isn't currently listed for Planned Engineering and I can't find any faults listed at present.
However current weather conditions mean that there's some Tropospheric Ducting accompanying the high pressure which can disrupt reception for usually brief periods with interfering signals. This may be affecting the SE and parts of the E at present. The BBC have issued a warning about possible short-term interference.
Do not retune as this most likely will just clear your correct tuning. If you have already done so, you'll have to retune again, possibly several times as you won't know when signals have returned to normal.

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B Fair:

If you have been experiencing some breaks in your signals in the last couple of weeks it's because Mendip is currently listed for Planned Engineering with Possible effect on TV reception "Pixelation or flickering on some or all channels".
If it's been going on for longer than that (continuously) please provide a full postcode and we can check your predicted reception. Other than that you may of course have some sort of fault on your aerial installation or cabling, check all your coax connections behind your TV.

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Mark Carter:

And I also replied to you https://ukfree.tv/extras/inreplyto/1036709

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Adrian:
David Warner:

For information about Forces TV, see https://rxtvinfo.com/2022/forces-tv-is-closing and https://www.forces.net/forces-tv and there is also information on their Facebook page apparently.

Together TV now have a live free streaming service, see https://www.togethertv.com/watch
There's no mention at this time about remaining on the Freeview EPG or any Freeview App.

Any +1 channels will go, QVC HD has recently appeared on satellite I hear,
There is rumour (I stress rumour) that something might appear on some space on the Local mux - possibly a Now 70s/80s or a That's TV channel (the latter already has some presence) in some areas.
Freesports is unlikely to appear anywhere else, nor are any remaining Community/Charity supported channels. There is an SD slot on one of the COM muxes - can't recall which one off-hand, but carriage there is much more expensive than COM7 so unlikely to be any other existing channels moving.

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Mike Davison:

There were all sorts of "rumours", anyway formal reports have recently been issued -

An interim comment from Arqiva https://www.bilsdalemast.co.uk/latest-news/posts/arqiva-update-on-investigations-into-cause-of-fire-at-bilsdale-mast/

On this page https://www.ofcom.org.uk/tv-radio-and-on-demand/information-for-industry/tv
not only a report about the Fire at the Red Bee Media Centre but lower down the page full reports about the Fire at Bilsdale.

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nick:

Hi Nick, ignore any fatal error message when posting, the posts do get through although there can often be a delay (due to caching, not the error).

Even with your technical knowledge, I'm sure you know you are in a very tricky location and even small changes to aerial location can make a big difference to reception. I assume you've checked out your predicted reception, it's not clever, even the Aldeburgh relay can be poor in some spots.

Whilst the frequency planners can and sometimes do make mistakes, I'm sure that in coastal locations like yours where there is potential for interference from the continent in "lift" conditions (Tropospheric ducting/Temperature Inversion) and likewise interference to them from us, the UHF channels chosen for the primary services (PSBs in our case) will have been to minimise this possibility, hence what you are experiencing. However there's still the possibility of interference not just from the continent, but from other UK transmitters in the "wrong" lift conditions. In your case, considering your aerial direction then Oxford and Wenvoe come to mind as possibilities, but even then under extreme conditions interference could come from anywhere using the same frequencies.

Are you using a "traditional" yagi, or still using a home-brew? If it's a traditional yagi then you're probably aware that it'll have a bit more gain on the higher channels which will help a bit with the BBC (PSB1) and ITV/C4/C5 (PSB2) muxes.

These days a quality Group K or Group B aerial can have similar performance BUT it will depend on the individual aerial as to which will have the best gain towards the bottom end of the band as well as the top end.

Attempting to position an aerial to make use of building screening from the most common source of interference (the continent) can conflict with the height required to get adequate signal from the intended source. Use of stacked arrays can sometimes help reducing sidelobes etc. but this is much more of a specialised technique.

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Adrian:

A Group B aerial is unlikely to make any difference as it still will have a reasonable response into the lower 50s. The frequencies above C48 (C49 actually as 49 is a guard channel) can be used by 4G or 5G but that doesn't change the interference potential if a mast is close to you. The Filter mentioned by Stevensonln1 is the way to go.

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Peter:

I can't find any problems listed, if the issue is still present, try contacting BBC engineering by following through the questions etc. at https://www.bbc.co.uk/reception/issues-with-analogue-radio/#/undefined

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