All posts by KMJ, Derby
Below are all of KMJ, Derby's postings, with the most recent are at the bottom of the page.
Fiona Nevola: The frequency has changed at Midhurst on mux D3+4 (which carries ITV1&2) to C56. The frequency of the SDN mux which carries ITV3 is now C54. You will need to retune if you have not already done so to receive these muxes on the new frequencies. If your tuner does not automatically replace the channel list when scanning for channels you will need to do a factory reset to clear the memory of the old frequencies before rescanning.
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stuart db: Further to Dave Lindsay's reply, if you have poor reception on C27 this is not really surprising, as this is the frequency for D3+4 from Rowridge. The frequency for this mux from Midhurst is C56. As the content is identical from the two transmitters most receivers will have ignored the stronger Midhurst signal if it is found that C27 from Rowridge has been stored. It is worth checking that the aerial group is suitable for Midhurst - most Midhurst aerials from the analogue days would be group C/D with a green stopper in the end of the boom. If the aerial has a red stopper it would indicate that the aerial is group A and is actually pointing to Rowridge, or was originally on Crystal Palace before being re-directed! Group 'A' aerials would give poor reception on Midhurst.
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James gregory: According to the BBC reception status for your postcode there is already coverage in Clacton from Mendlesham, Manningtree and Wrotham. This refers to the BBC national multiplex. If you are referring to the proposed local mux, which will carry BBC Suffolk, there does not appear to be a date yet for its introduction.
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Lizzy Thorn: All the Freeview transmitters in your region are currently working at full power as planned. You are predicted to be able to receive signals from Bilsdale, Chatton and Pontop Pike, it is possible that you have not stored all the available channels from the same transmitter, which should be the one to which your aerial is pointing. It might be necessary to do a manual tune on the correct frequencies, after first clearing the channel list, in order to receive the correct set of channels. For Bilsdale (aerial pointing SSW) the frequencies are C26, C29, C43, C46, C40, plus C23(HD). For Pontop Pike (aerial points WNW) they are C58, C54, C50, C59, C55 plus C49(HD). If by any chance your aerial points NW to Chatton then use C45, C42, C41, C44, C47 and for HD if required, C39+. Note that if you receive from Bilsdale the correct aerial group is now group K. If you still have a group A aerial, often distinguished by a red stopper in the end of the boom, you could struggle to receive the COM muxes. Pontop Pike and Chatton both currently use frequencies within their respective former analogue aerial groups.
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Anne Kimber: Do any of your neighbours have aerials set for horizontal polarisation pointing ENE to Beacon Hill or WNW to Caradon Hill? If so you might be able to receive the full Freeview service with the correct aerial.
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david cusworth: There are a number of possible reasons why you have no signal on C22. I am assuming that you have a signal from Rowridge on C25 for ITV3 & QVC, also C28 for Film4. If so, it is possible that the aerial is positioned where there is no signal on C22, or where there is sufficient pick up of the signal from Crystal Palace on C22 to block reception of the Rowridge signal.If the aerial is mounted for horizontal polarisation it is more likely to pick up interference from Crystal Palace , which is also horizontally polarised. Improved reception is available in many parts of the Rowridge service area by using an aerial (preferably one for group 'A') set for vertical polarisation, as the COM muxes are transmitted at 200kW vertical and 50kW horizontal. Check that there is no analogue interference on C22 from the RF modulator of a VCR or Sky box set around C22, also check by using a different brand of box that the problem is not caused by the inability of your receiver to receive signals with a frequency offset, as Rowridge actually transmits ArqA on C22+. The Digital UK reception predictor suggests that you should have good reception from Whitehawk Hill, although this too could in certain circumstances be affected by interference, this time from Midhurst, which shares C56 with Whitehawk.
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John H: Look in the 800s of your channel list. I would expect BBC 1&2 Scotland and Border England will be found there.
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Miceil: You are not (officially) served by any DAB transmitters at present, however the BBC reception report for your postcode does show that you could be receiving DAB transmissions from Blaenplwyf, Preseli and Carmel. Have you tried pointing the DAB aerial towards Preseli to see if that signal offers any improvement over Blaenplwyf? Trying different locations for the aerial might also find pockets of stronger signal, otherwise, as you suggest, the use of an amplifier can raise the threshold when the signal level is low and there are no particular interference problems.
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Ian: Ofcom have requested that the 4G spectrum is available for use by the end of May, I note that Digital UK is now listing the Waltham transmitter group changes for May!
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Wednesday 3 October 2012 9:23PM
Mark: It is already proposed to transmit the Leicester mux from the Waltham mast. With luck this will increase the coverage to closer match that of the FM signal from Copt Oak. One question does arise however, in the light of the closure of the West Midlands mux there is insufficient capacity on the Birmingham mux to fit in all the services currently transmitted on FM in the Birmingham area. Could Ofcom decide that a second local mux is required for Birmingham? Remember London has three!