All posts by KMJ, Derby
Below are all of KMJ, Derby's postings, with the most recent are at the bottom of the page.
Bob Martin: The Digital UK postcode checker predicts good reception on all six muxes from both Durris and Angus at your location. This does not, of course, take into account local obstructions (if any) in the signal path which could affect reception. As you say any opt outs for the Dundee area are carried on the Angus transmitter.
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Rich: If you have BBC channels in the 800s there must be something stored in the "normal" positions in the channel list.In your location it is most likely to be a set of BBC channels that are weak signal or poor quality.If by chance you have first found a signal from Sandy Heath on C27 this would be stored in the prefered positions, and then channels from Oxford and Hannington in the 800s. Have you checked all the 800s channels for any that work? If there is only one set of channels in the 800s these will probably be from Hannington on C50, the Oxford variants on C34 being the ones in the "normal" positions. In that case you would need to look for single frequency interference on C34, possibly from a VCR or Sky box with the RF modulator set around C33/C34.
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Bruce Norrie: When the technician checked the signal levels did he try moving the aerial about, ie raising or lowering, backwards/forwards or a short distance either side of its present position? It is not unusual for the best signal on each mux to be found in differing locations, a compromise being found for the eventual siting. It is also worth using a group A receiving aerial which has the best gain for a given size of aerial on the frequencies now used at Durris.
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Sarah Webb: The Digital UK postcode checker shows that reception of Mux2 from Sudbury is currently poor at your location. Wait until 20th July 2011 for Mux D3+4 to be switched on at high power, when the prediction changes to good reception for ITV1&2, C4, C5 etc.
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Andrew Smith: Historically the Belmont transmitter was originally a main station of Anglia TV. BBC North was added later to improve reception in what was then part of the Holme Moss coverage area of BBC TV. When the decision was made to transfer the ITV region over to Yorkshire TV, due to the fact that so much of the coverage area lay in Yorkshire and Humberside, there was considerable disquiet from viewers in the southern part of the area. To this day those who can also receive Waltham make this their transmitter of choice as they feel a greater affinity with Nottingham rather than Hull. In East Anglia relays were added for viewers unable to receive Tacolneston just to deliver the correct regional news, and these will be converted to digital rather than adding an extra signal to the Belmont ensemble. At your location the Digital UK postcode checker predicts a number of options will become available on 9th November 2011 for reception of BBC East signals. They are all shown as variable reception,unfortunately. The transmitters are Tacolneston, West Runton and Wells-next-the-sea.
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Nick Peel: Are you also missing channel 15(Film4) and channel 24(ITV4)? If so the problem is lack of MuxD due to interference or weak signal on C55. If it is only the "Yesterday" channel that is missing does it appear in the 800s? If it does it needs a factory reset to clear the channel list of old data before scanning for channels. If MuxD is missing what is your postcode? - so a check can be made of predicted reception at your location.
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terry: The COM muxes from The Wrekin are currently using temporary frequencies at low power.On 28th September 2011 the frequencies will be changed and power increased. The Digital UK postcode checker currently does not make any prediction for reception of the COM muxes from The Wrekin, after 28th September reception is shown as poor. It does however predict that you should already have a full Freeview service from Ridge Hill with good reception on all muxes, and after 21st September 2011 all six muxes should be available from Sutton Coldfield, all with excellent reception. These predictions are, of course, subject to no local obstructions such as trees or tall buildings blocking the signal path.
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George: If you are watching the analogue channels, BBC2 was switched off on 6th July 2011 and replaced by a high power digital multiplex which carries all the BBC channels. The remaining analogue signals will be switched off at Sudbury on Wednesday, 20th July 2011 and replaced by mux D3+4 ( ITV1&2, C4, C5 etc) and mux BBCB which carries HD channels. To continue watching TV you will need a Freeview box or a TV with an in-built digital tuner. If the problem is loss of BBC2 on a digital receiver you will need to do a factory reset to clear the channel list of all old data then do a scan for channels which should find and store the channels on the current frequency.
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Wednesday 13 July 2011 10:23PM
Sheila: An indoor aerial is unlikely to give reliable reception from Knockmore. A single wideband aerial mounted on the roof should give good reception of all six muxes from Knockmore.The reference to an additional aerial was to suggest that if reception of the stronger signals from the local relay is prefered for the PSB muxes, a second aerial pointing at Knockmore for reception of the COM muxes could be linked via a diplexer to the existing downlead. If the aerial currently in use for the relay transmissions is a group B type (chosen to suit the frequencies in use on the relay) it would not be suitable for redirecting towards Knockmore.