All posts by Michael Perry
Below are all of Michael Perry's postings, with the most recent are at the bottom of the page.
Nick Horrex:
Aldeburgh is a Freeview Light transmitter covering a relatively small number of viewers. Its 3 multiplexes are all rated at 10kW, which is not at all considered 'high powered' considering that a main transmitter would have multiplexes radiated at 100kW or more, in some cases greater than 1 MW. Aldeburgh is intended to 'fill in' an area with poor reception from the main transmitter covering much, but not all, of the area.
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Callum Robinson:
If you look near the top of the pages on this website for each transmitter, you will see a listing of which programmes are being broadcast and on which multiplex.
Note that Channels 61 to 68 are no longer used for television transmission as they have been re-allocated for use by mobile phone companies for mobile internet services.
Note also that there are currently some changes being made tothese transmissions in preparation for re-allocation of the 700 MHz bands, which has already started on some transmitters. This is not due to finish for some time.
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Keith Farrington:
As a matter of interest, do you havce a 'smart meter' fitted? Some have been saying they are getting interference from the meter's WiFi system.
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David McDaniel:
Please can you tell us your full post code so we can check the predicted reception conditions for your location?
There are no reported engineering works at present on the Reigate transmitter so the problem has to be within your property, either a poor aerial connection or else a fault in the equipment.
By retuning your equipment has lost all of the previously saved tuning data, so it is always a bad idea to do a retune when 'No Signal' is reported. When you do get signals, what are the signal strengths shown as?
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Philip Clancy:
You need to check the signal strengths of both the good TV and the one having poor reception. It is possible that your signal strength may be too high, or too low, for one of the TV sets - the tuners do vary in sensitivity.
Ideally you want both sets to have signal strengths in the 60% to 85% range. Higher than that can cause picture break up, loss of sound or even a report of 'no signal' because the tuner is getting too much signal. If it is less than that range then that can cause similar problems and could be due to a poor connection or a fault in the way the signals are being split between the two sets.
Is the split done using a passive splitter, with no power requirement, or an active one needing a power suppy?
Are you getting the transmissions intended for a Welsh audience? You are closer to the Winter Hill transmitter, a distance of 31 km and bearing of 42 degrees, yet Moel-y-parc is 39 km away at a bearing of 236 degrees. If you are getting the correct local versions (English) for your area then you are probably using Winter Hill. Check what channels (not programme numbers) the BBC and ITV services are on.
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Ogilvie Jackson:
None of the Scottish services are due to disappear at all. The programmes that are currently using COMs 7 & 8 will likely be combined onto a single frequency network, probably using channels in the 50's range, sometime around 2020 to 2022. The services on COMs 7 & 8 are only broadcast from 30 main transmitters at present, covering some 70% of the population. There are no plans to extend this.
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NickyH:
Then your TV has retuned and found the signals from Wenvoe first.The solution is to do a manual retune for each multiplex using the channel data given near to top of this page. Your User Manual will tell you how to do that.
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Sharon Downie:
Please give a full post code so that we can determine the reception conditions at your location.
Pixilation can be caused by either too little signal or too much. Check all the cables and connection behind your TV set first to make sure there are no poor or bad connections. Then check what the signal strengths are, they need to be between 60% and 85% - no higher and no lower.
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Keith Farrington:
I noted they you said "I don't have a 'Smart Meter' fitted yet." Such meters are entirely optional and you do not have to allow one to be fitted. All they actually do is display what your energy usage is on the basis current consumption, daily consumption and monthly consumption. The separate display unit, connected via WiFi, shows these details. The meter does not and cannot reduce energy usage, only a change in the users pattern of consumption can do that, the display is intended to encourage such change.
Further, many current and older meters only work with one supplier, so if you change they stop working. Further, they can be controlled by your supplier who has the ability to manage network loading by temporarily disconnecting some users!
The one possible advantage is that your supplier will get regular 'readings' of your consumption. I prefer to retain control of our energy usage and provide my supplier with monthly readings using their web site. Easy, simple and you retain control. And safer as there are still questions about the security of the systems used for 'smart' meters.
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Saturday 10 February 2018 10:36PM
nick horrex:
If you have several weeks to spare, I'll try to explain it for you. Having worked in the TV industry since 1960 until retirement I have had to deal with many types of aerials. The explanation involves complex physics and only as I studied for my Masters Degree did I realise just how complex aerials are.