All posts by Michael Perry
Below are all of Michael Perry's postings, with the most recent are at the bottom of the page.
Coach:
Please check all your aerial connections, unplugging the coaxial plugs and then re-inserting them. It is likely that corrosion of the contacts has caused your problem. There is no known transmitter fault else thwere would thousands of similar compaints.
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Nicholas:
In electronics it is essential to fully stated clearly exactly what you do or did. You did not say anything about leaving the equipmenty switched off fo several minutes and as many non-technical people do just that I was trying to save you money to replace a damaged box. So Yes, you do have to state everything.
Have you checked with your immediate neighbours whether thay have the same problem? Have you checked which multiplexes your are trying to receive are the ones from the correct transmitter?
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Ian Davies:
You asked for help. We can only offer advice if we know where you are in relation to the transmitter.
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Nicholas:
A great many do not know much about TV and Radio transmission and reception, hence the need to spell out the detail. If you do know, you should have said.
If you are experiewncing significant multipath reception you need a more directional aerial to eliminate the extraneous unwanted paths. A simple dipole will not do that as you should know.
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Wendy:
Because you tried to retune whilst there was work being carried out, they will not return automatically! It is always a bad idea to try retuning if some channels 'disappear' and especially if there is engineering work.
You will need to retune after to work has been completed. I do not know when that will be (as I am currently holidaying in France) but other contributors may have more information.
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Joan Rushby:
To answer your question we need a full post code for your location, just saying Glossop does not help at all.
Have you checked that your aerial is properly connected? Have you tried unplugging the aerial leads and then plugging them back in again? Have you checked that your TV is tuned to the correct transmitter? Have you checked what the received signal strengths are for each of the multiplexes?
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Deb Urwin:
We need a full post code for you location to examine what the signal reception conditions are like there.
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Philip Hawkins:
As Ventnor is a relay of Rowridge the current work there will also affect reception in Ventnor.
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Anday:
Having looked at the blue links below your posting, namely the 'digitaluk trade' (at Coverage Checker - Detailed View and the 'Freeview map' (at Freeview reception at WN68 DS) it should be perfect reception. However, is your aerial a Group C/D type or a wide band type? Com7 is on channel 31 and most Group C/D aerials are poor at that lower frequency, so will need to be replaced by a wide band type, preferably a log-periodic which will be suitable for several years. Com8 is on Channel 37 which should be being picked up by your aerial, though it may be weaker than you 'main' channels.
So you need to do a signal strength check on channels 31, 37 and 49 (the ArqA multiplex). For good HD reception you need signal strength between 60% and 85%, any less is too weak and any more is too strong for reliable reception of HD services.
One other possible source of problems are the 4 mobile masts quite close to your location. If they are a source of problems you shoudl contact At800 (see https://at800.tv/contact-us/) and discuss any issues with them.
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Friday 22 September 2017 5:17PM
Nicholas:
Switching off and back on quickly runs the risk of damaging the electronics inside the box. If you have a 'stuck' box it is best to turn it off and unplug the mains supply for at least 5 minutes. Then plug back in again and wait for the internal system to reset, another 5 minutes is recommended. Then turn the box on again and hopefully all will be well, unless there is a fault in the box.