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All posts by Michael Perry

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

Rowridge (Isle Of Wight, England) transmitter
Thursday 21 April 2016 2:53PM
Trowbridge

Gentlemen:

Bit rate is a red herring! It is not relevant to the issues being reported/discussed.


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Full technical details of Freeview
Thursday 21 April 2016 2:59PM
Trowbridge

Carole Harrison:

You are quite close to the Emley Moor transmitter, so you problems may be dues to excessively strong signals. Would you please check to see what the signal strnegth is on the affected channels at a time when they are giving problems?

A strength of bertween 50 and 70% is acceptable for most TV sets, anything above 80% is usually too strong and causes break-up of pictures and/or sound or complete loss of reception being reported at 'No Sognal' when it is in fact too much signals.

For more help, search for 'too much of a good thing' on this website.


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Isabel Tolley:

We need a full post code to know where you are in relation to your transmitter and to see if there are any interuption/blockages between you and it.

The fact that others in the area have apparently been affected in the same way suggests it is nothing to do with your equipment. Do *not* try retuning.


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Mandy Barnes:

A satellite dish is unable to receive TV signals for Freeview from any of the ground-based transmitters. Therefore you do need a proper aerial that is suitable for your location, there are significant variations depending on where you live.

If you give a full post code we could look up which transmitter is likely to be best for you and to suggest suitable aerial equipment. Note that there is no such thing as a 'digital' aerial, all UHF TV aerials are able to receive TV signals irrespective of whether they carry analogue or digital modulation.


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Ken Hughes:

No. The Sky HD box is a satellite receiver with a record facility built in. It is not capable of receiving any signals that do not originate from a satellite and received via your dish. Freeview is transmitted from ground based transmitters around the country and can be received using a UHF aerial, not a dish, and a suitably equipped TV set like yours. The aerial can be connected into your Sony TV in the conventional way. (There is no such thing as a 'digital' aerial, all UHF aerials can receive transmissions used for TV services irrespective of whether they are analogue or digitally encoded. So don't get 'fleeced' into buying a 'digital' aerial.)

However, you may be able to still get the free-to-air channels on your Sky box via your dish, but you will not be able to record or playback (Sky turn that off when your subscription ends).


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Hans:

The Droitwich long wave transmitter is nearing the end of its useful life, it gets more difficult to obtain the vavles used as they are no longer manufactured.

However, you may like to try BBC R4 LW - BBC Radio 4 LW 198 AM Droitwich - Listen Online which carries BBC Radio 4 via the internet. I'm not sure whether there are any country/region restrictions applied as is the case with some BBC services.


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Tacolneston (Norfolk, England) Full Freeview transmitter
Saturday 23 April 2016 11:11AM
Trowbridge

Richard Baguley:

To be able to assist we need a full post code for where you live, or that of a very nearby shop or post office. Then we can look at reception conditions for your location.


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Tacolneston (Norfolk, England) Full Freeview transmitter
Monday 25 April 2016 10:51AM
Trowbridge

Peter Leggett:

It is likely that your are suffering from the temperature inversion interference that is prevalent in the Eastern areas of the UK at present. There is nothing you can do to prevent this natural phenomenon.

4G filters will not give any benefit in this instance, they are only effective if your reception is affected by mobile signals local 4G transmitting masts. As you have not given a full post code we cannot check to see if there are any such masts in your locality.


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Tacolneston (Norfolk, England) Full Freeview transmitter
Monday 25 April 2016 11:02AM
Trowbridge

Richard Baguley:

There are two posibilities here. The first is the well known phenomenon of Temperature inversions that give rise to interference from distant transmitters. That is currently being reported as widely affecting many areas in eastern England, so that may be relevant. In which case you should not try to retune your equipment.

The second possibility is that you may be being affected by 4G signals as there is a Vodaphone mast very close to the postcode you have given. It is on Chapel Road on the other side of Yarmoputh Road, around 200-300 metres from you. If that is used for 4G, then the services transmitted on the BBCA and the D3&4 muultiplexes could potentially be affected, they being on channels 55 and 59 so are close in frequency to the lower end of the 4G band. You may get a free filter from @800 by contacting them on https://at800.tv/contact-us/.

Hope that helps?



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Jim Haire:

You should not retune in those circumstances, you may lose more than you might gain.

To help you we need a full post code, or that of a very closeby shop or post office. Then we can determine the relationship between you and the transmitter and whether there are any possible obstructions that can cause reception difficulties.


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