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For the last six years, I have answered many thousands of personal emails that you have sent to UK Free TV.

Sadly, I am unable to offer this personal service at the moment.

Until I can restore this service, please can you leave any questions you have on an appropriate page, where they will be answered as soon as possible, or below, if you can't figure out where to ask.

I look forward to your questions!



Help with TV/radio stations?
BBC Three Linear channel re-opens1
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Can I pay as you go for British Europsort on my digital tv without subscribing?5
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Comments
Sunday, 16 March 2014
furkin
8:09 PM
Hayle

Hi Mike,
I have lost just mux-2 on 2 TV's.
1/ LCD - straight feed from standard antenna.
2/ CRT + Topfield, fed from log periodic.
All new antennas, coax, connectors ('F' type where possible).

I can see the transmitter from my window.

I lose m2 quite often - who do I contact to ask about technical issues ?

How do I know if an attenuator is required ?

cheers


link to this comment
furkin's 6 posts GB
Monday, 17 March 2014
MikeP
sentiment_very_satisfiedPlatinum

8:33 PM

Furkin

I suggest you check the signal strength display on your TV sets. You do *not* want 100% strength, there is a page on this website about 'Too much of a good thing' referring to too much signal.

If you have more than 80% then you 'may' benefit from reducing the signal strength with an attenuator. You would probably do best to get a variable type and adjust it to reduce the strength so you do not get regular interruptions - but do allow for the high pressure areas that are known to cause signal loss.

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MikeP's 3,056 posts GB
Wednesday, 19 March 2014
S
Steve P
sentiment_satisfiedGold

12:13 AM
Wrexham

Why don't they design tuners to cope with strong signals?

It can't be difficult compared to digesting 64QAM ?

link to this comment
Steve P's 1,172 posts GB
M
MikeB
sentiment_very_satisfiedPlatinum

2:26 AM

Steve P: because then they wouldn't be able to pick up weak signals....

Tuners work within certain parameters - and generally, a good brand will mean a reasonably sensitive tuner. If its too strong, its much easier to lower the strength than boost a weak signal.

link to this comment
MikeB's 2,579 posts GB
S
Sanya O
2:33 PM
Glasgow

Hi Brian,

Can I ask what planning model you use in estimating the coverage of the transmitters for DTT ?

link to this comment
Sanya O's 1 post GB
Friday, 21 March 2014
M
Mike Smith
6:31 AM

I have a Logik L2STB09 Freeview box and a relatively old 'TV top aerial' antenna that was once used to receive analogue. It previously received all the digital channels available to me excellently. I am based just outside Newark in Nottinghamshire and used to receive the East Midlands region channels.

I have been away on holiday for a month and on my return, suddenly no signal for any channels that were in the stored list. I have tried re-scanning and it finds no channels. I have tried factory resetting the box, and I have tried unplugging power and antenna for 30 sec, plugging in power, scanning for channels, then plugging in antenna and scanning for channels, nothing found.

Any ideas? Has anything changed at the local transmitter recently that will have made either my aerial or STB obsolete?

link to this comment
Mike Smith's 1 post GB
S
Steve P
sentiment_satisfiedGold

11:48 AM
Wrexham

Mike B - it is within the scope of electronics to detect the strength of an incoming signal and attenuate it if needed. I can't see how it is so hard that it is not done routinely.


Mike S - I presume the TV is working and you can see the retuning etc. images from the box so that side works.

And you have checked all connections by removing and refitting.

And confirmed that neighbours are getting TV OK?

And done a factory reset of the box

And phoned the helpline of its manufacturers.

And taken it somewhere else to prove it does not work there either.

And borrowed another box and proved it DOES work at your place.

NOW buy a new box

I'm assuming you have a strong signal - you do not give address details to check



link to this comment
Steve P's 1,172 posts GB
Sunday, 23 March 2014
E
east ayrshire radio society
6:12 PM

Many thanks for the answers to my "channel numbers" - "Frequencies" question, I have had a good hunt about and now have a list of the various frequencies, and muxed channels available on the three transmitters I can "hear" a decent signal from. The channel numbering makes sense now I have had a good think about it.

I have not owned a TV receiver since the mid 1980s and have only got interested in broadcast TV through using SDR (software defined radio) the actual frequencies are of more use to me than allocated channel identifier numbers.

I have given up on the Group A antenna I was given by a friend and have built a wideband antenna with an inline preamp at the antenna, this feeds down a fairly long coax to a small variable gain wideband amp in my radio shed. This feeds 2 SDR receivers and an old PC. After tracking down some DVB-T decoder software and feeding it my compiled frequency list I now have several channels of TV.

Thanks again for the assistance, cheers..

link to this comment
east ayrshire radio society's 2 posts GB
Monday, 24 March 2014
S
Steve P
sentiment_satisfiedGold

10:01 AM
Wrexham

Don't forget to buy a license!

link to this comment
Steve P's 1,172 posts GB
A
alec sharp
11:32 AM

dear sirs,
Keep losing sky113 and 114. All other channels are okay

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alec sharp's 1 post GB
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