All posts by Michael Perry
Below are all of Michael Perry's postings, with the most recent are at the bottom of the page.
Terry Passmore:
The BBC have recently said that they will not phase our FM just yet. They have realised that there are problems with DAB reception and that people are not that keen on the sound of digitised music and the lack of stereo.
So we wait to hear what they actually plan.
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BobG:
I am more than aware of the fact that cannot receive signals from satellites, sometimes due to geograp[hy and sometimes trees, etc. It's a matter of whether most can as far as the regulators are concerned.
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Mr D Metcalfe:
In short - warm weather. That causes signals top travel further than usual, resulting in interference in some afreas from signals travelling longer distances than usual. It is a perfectly natural occurence and has happened for many, many years. DO NOT RETUNE.
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Alan Gordon:
Please go to Digital UK - Coverage checker put in your post code and house number. Then scroll down to the listing of Rowridge and Whitehawk Hill. That will show a listing of both the current channels in use and those projected for use in the next few years. From that, you should be able to determine what your need to know. Note that the current recommendation is to use a wideband aerial, but that does not tell you anything about what filters, if any, might be needed. Note that very, very few location need to use any filters unless they are close to 4G masts.
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A Farlow:
If you are commenting on the occurence of weather-related interference, then no one know when it will occur nor when it will clear up - apart from advising to wait for the current weather patterns to change.
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John Martin:
The orbital locations of all satellites are determined by International agreements. Those used in the UK for satellite TV broadcasting are positioned at 28.2 and 28.5 degrees East in geo-stationary orbits above the Equator (roughly over East Africa). The satellites are designed to give the best coverage possible within the targetted area, but there are inevitably some locations that are unable to have a clear line-of-sight of the satellites due to mountains, hills, trees valleys, etc. Even tall building can block the line-of-sight, think of Canary Wharf in London that 'hides' some premises from the satellite signals.
If your location is able to 'see' the satellites, which the vast majority can, then the free-to-air and subscription channels are available.
It is a matter of the physical relationships by location.
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Mike Weatherly:
Please also note that this weather effect does not just affect reception from Bluebell Hill but can affect any transmitter signals across the country. It all depends on the way the atmosphere is carrying the signals and how some are able to travel further than intended because of the weather.
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Stephen Benson:
Please look at Digital UK - Coverage checker and enter your post code. That will then show you the current and predicted future channel usage.
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A Farlow:
Since there were several frequency changes earlier this year, you now need a wideband aerial and a Group A rtype is unsuitable. There has been no change to the power output from the transmitters so you may have a problem with the connections between your aerial and the TV set. Check each cable for damage and/or water ingress. Check each connections to ensure the contacts are clean and that no braid from the outer is touching the inner core. If there are coaxial plugs and sockets, unplug them and refit them to make sure the contacts are clean and fitting properly.
Your= should aim to have signal strengths of between 60% and 85% to ensure there is sufficient signal for the tuner to use but not so much that it gets overloaded. Signal quality is less important and will be variable.
Bear in mind also that the current spell of warm weather causes natural effects that make some signal reception problematic. When the weather patterns change those effects will usually disappear. DO NOT RETUNE your equipment.
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Tuesday 10 July 2018 3:30PM
Dominic Redgewell:
If you look at the predicted reception as shown on the Digital UK Coverage Checker, at Coverage Checker - Detailed View and on the blue box below your posting. It shows you should be getting pretty good reception from Sandy Heath but variable and even very poor reception from Crystal Palace.
If your aerial is aimed at Sandy Heath, it will not 'see' Crystal Palace at all well as it is in a completely different direction.
So your aerial will need to be adjusted to receive any decent signals from Crystal Palace, but even then reception of all bar the BBC A and D3&4 is expected to be acceptable but the reception of all other multiplexes multiplexes is expected to be poor and variable. So using Crystal Palace is not recommended.