All posts by KMJ, Derby
Below are all of KMJ, Derby's postings, with the most recent are at the bottom of the page.
Ian: Satellite has its fair share of complications. With so many different orbital positions being used by the countries that transmit free-to-air services it requires a receiver that supports Diseqc to switch between the LNBs. That is in addition to every tuner needing a cable back to the LNB. Then do you run the receiver in Non-Freesat mode to get all the available channels, or go for the EPG then fiddle about tuning in all the extras that Freesat don't give you, (like Sky News!) It makes diplexing a second aerial to receive the Freeview COM muxes sound easy.
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kate: The output from the Sky box is an analogue signal, so the TV will need to have analogue selected when you wish to view the Sky box channels. For Freeview channels select DVB. When you re-tuned was the Sky box switched on? If it wasn't it is possible that the frequency for the Sky box was lost from the memory of the TV's tuner. If this is the case the frequency will need to be found and stored by the TV again.
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Toni Bucior: Check that you have stored the correct frequency for Bacup or Winter Hill on Mux BBCA. It is possible that Haslingden (C26) or whitworth (C28) was found during the scan and this signal has now dropped in strength due to seasonal changes, such as trees coming into leaf, resulting in "no signal".
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John: If you are receiving Freeview signals from Sandy Heath, the frequency for the SDN mux changed this morning (9th May 2012), so you will need to do a retune, after first clearing the channel list of old data. If you are using the Oxford transmitter check for single frequency interference on or around C62.
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Tony Betts: Are there any BBC1 or BBC2 channels stored in the 800's of the channel list which work correctly? At your location you could be receiving signals from both Rowridge and Whitehawk Hill with your aerial pointing to Whitehawk Hill or Newhaven (which is still analogue only). If this is the case try doing a manual tune for each of the Whitehawk Hill frequencies after first clearing the channel list of data. Alternatively, do a channel scan with the aerial unplugged until the scan has gone past the Rowridge frequencies, then plug the aerial back in at about C30.
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andrew watson: It is unlikely that atmospherics are affecting your reception this afternoon- there was a slight possibility of tropospheric ducting this morning, but this has now subsided. If youre aerial is pointing to the Tunbridge Wells transmitter you are not currently expected to receive any usable signal, due to the low power transmission and frequencies shared with Bluebell Hill. On 30th May 2012 Mux BBCA starts at 4kW from Tunbridge Wells, with the remaining muxes available from 13th June 2012. At present you could possibly receive a full service from Crystal Palace and a selection of muxes from other transmitters when using a suitable aerial, however with switchover commencing at the end of the month you might decide that it is best just to wait for the full power transmissions to begin.
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Peter Corbett: If your problem is with Freeview the BBC reception report currently shows the Rosneath transmitter to be off the air from 10.05 this morning - 12th May 2012. Additionally BBC National DAB radio is shown as very weak signal from Rosneath from 10.06.
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David: I am guessing that you are able to receive Mux BBCA and D3+4, which leads me to ask if your aerial is a group "A" which is identified (usually) by a red stopper at the end of the boom. If this is the case, the frequency now used by SDN is out of range for the aerial, as are C48 and C52 as used by the other COM muxes. You will unfortunately require a wideband aerial to receive all frequencies in use at Sandy Heath. Have you tried doing a manual tune, if this option is available? Autoscan could possibly find an unreliable signal from Waltham on C29, which could lead to the S/H signal on C51 being overlooked. With regard to the deleting of channels, there are some boxes which retain the existing channel line up when doing an auto scan, if no signal is present it all stays the same, otherwise any channels found with regional differences or a different mode being stored in the 800's or other vacant positions. Doing a factory reset solves the problem (but also changes any settings you might have entered into the memory). Alternatively,using the channel delete facility removes the channels whilst leaving your other settings in place.
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G Thompson: It is worth looking at the history of TV reception in the Kings Lynn area. Belmont entered service in December 1965 with Anglia TV on C7. In November 1966 BBC1 North was added on C13 and BBC2 started on C28. Many viewers would have had aerials installed on Belmont from this date for all three services and in due course when UHF transmission began on BBC1 and ITV most viewers were tuned to Belmont. In 1974 the decision was made to transmit Yorkshire TV rather than Anglia from Belmont, to the consternation of viewers in the South of the coverage area who now had both BBC and ITV coming from Leeds. The Kings Lynn relay was a two channel transmitter, introduced to provide the East Anglia services of BBC1 and ITV to an area where a significant number of people were receiving the wrong local news for their area. It is likely that viewers who bothered to tune into this service were in many cases receiving the signal off the back of their Belmont aerial, as they would have needed a second aerial for correct reception of the two extra channels. To the present day, you should be able to receive a full freeview service with good reception from Belmont (and at your location, Waltham) when using the correct aerial. As with analogue, Kings Lynn relay tops up the available channels with the East Anglia services. It is admittedly a bit more fiddly to combine aerials to receive all services, due to the spread of frequencies in use.
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Wednesday 2 May 2012 9:05PM
Mark Fletcher: I can't help wondering if there will be no more free-to-air HD channels beyond the basic PSBs, albeit that the regional variants will probably be HD eventually.There is a general move among broadcasters to offer HD only on subscription channels. The government and regulators now seem to regard broadband as the "must have" service, no matter what happens to broadcast TV.- why are Ofcom so keen to break the control Sky have over new movies? Something to make broadband more attractive to TV viewers, perhaps? Personally I think this is changing over to pay TV by the back door, with Freeview and Freesat eventually offering very little by way of general entertainment.