All posts by KMJ, Derby
Below are all of KMJ, Derby's postings, with the most recent are at the bottom of the page.
jane: The easiest way to solve this problem is to clear the channel list, then commence a re-scan with the aerial unplugged. Plug in the aerial at C46 in the scan to cover the Winter Hill frequencies. Otherwise it is necessary to do a manual tune (where equipment allows manual tuning) for each of the Winter Hill frequencies. With the present frequency allocation, auto-scan will always find the signals from Moel-Y-Parc in Wales and possibly The Wrekin (West Midlands) before the NW/Winter Hill signals are found at your location.
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PJ: If you have no scart connection, after selecting the channel number on the Sky box you will have to re-tune the analogue tuner in the TV to find the new Sky box frequency in order to see where you are navigating in the Sky box's menu. You can then save the new frequency.
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Neville Langley: If the two aerials are linked together via a diplexer it is possible that you could have lost ArqA from Winter Hill on C49. This depends on where the frequency split occurs on the two legs of the diplexer. You should not, however, have noticed any difference with regard to ArqB as this continues to be transmitted on C55 from Winter Hill, so channels 18,19 (4music and Yesterday) should still be available.
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Alan Thomas: The simple answer is transmission costs. To equip most of the relay sites with transmitters for the COM muxes would have roughly doubled the cost of providing the service but only served a further 8% of the population. Cosequently the COM mux owners declined to add the service to additional masts when they were invited to do so. A similar situation exists on radio, with Classic FM not being transmitted from smaller relay sites.
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Grant: Further to Dave Lindsay's advice, the DUK reception predictor does not show any reception as being possible for the COM muxes from Durris due to the likelyhood of interference from Knock More which currently shares some frequencies with Durris. However, in the event that the Knock More signal does not cause the level of interference anticipated by the predictor, you might find that reception of the COM muxes is sometimes possible from Durris.
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Peter: Channel 49 the Jewellery Channel refers to the service which normally appears at position 49 in the channel list. It is carried on the SDN multiplex. When doing a manual tune for C49 (mux ArqA) or C50 (mux BBCA): this refers to the UHF frequency channel that is typed into the tuning menu. Autoscan begins at UHF C21 and looks at all frequencies in turn up to UHF C68, stopping where a signal is detected and if the strength and quality is sufficient to identify the services carried these are entered into the channel list usually in "logical channel number" positions.
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Ms C Ashley: There are currently no problems reported with any of the transmitters in your area, and if there were it is likely that many comments would have appeared by now! Try checking cables and connectors feeding the receiver, also that the aerial is still in place if mounted outside. If the signal is routed via other equipment such as DVD recorder or VCR, check that such equipment is powered up.
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chris: If you are using the Caldbeck transmitter for your Freeview reception (the use of an amplifier suggests that you could be receiving the service long distance) it is worth noting that the COM muxes share the same frequencies with the COM muxes at Divis in Northern Ireland. Where both signals are present they could effectively block reception from either transmitter. In fact the signal from Divis could be the stronger of the two in some parts of your locality, in such cases it might be worth trying an aerial pointed at Divis to see if a usable signal is available.
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Thursday 18 April 2013 2:57PM
Cath: The St Just relay transmitter is shown as off air since 08.30 today 18th April 2013.