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uk.tech.digital-tv (Digital TV - General) (uk.tech.digital-tv) Discussion of all matters technical in origin related to the reception of digital television transmissions, be they via satellite, terrestrial or cable. Advertising is forbidden, with no exceptions. |
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![]() I just checked the coverage detail for my area on dtg.org.uk, and although I maybe have to reposition my aerial (Transmitter choices are Mendips or Oxford), many channels are still not available (specifically BBC four and BBC radio 6. Is it just a case of waiting until these channels are available on local transmitters? Is there anywhere I can check when this is likely to change? Also various channels that we would like are available on Mendips but not on Oxford and visa-versa. Short of running up on the roof and turning the aerial around every time, is there much that can be done about this? Thanks. -- John (Swindon, UK) _ ICQ# - 16141921 / \ ASCII Ribbon Email - (rot13) \ / Campaign * email to reply or from address ignored * X Against Save Farscape! - http://www.watchfarscape.com/ / \ HTML Mail |
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I just checked the coverage detail for my area on dtg.org.uk, and
although I maybe have to reposition my aerial (Transmitter choices are Mendips or Oxford), many channels are still not available (specifically BBC four and BBC radio 6. Is it just a case of waiting until these channels are available on local transmitters? Is there anywhere I can check when this is likely to change? Also various channels that we would like are available on Mendips but not on Oxford and visa-versa. Short of running up on the roof and turning the aerial around every time, is there much that can be done about this? They're all available from Mendip, whether you can pick them up is another matter. Ditto for Oxford. Try a "real" coverage predictor, he http://www.wolfbane.com/cgi-bin/tvd.exe? You'll need to enter your National Grid Reference. This can be found by entering your postcode into http://www.streetmap.co.uk/ and then clicking "convert coordinates" on the next page. It's probably listed as LR, and will be in the format AA123123. You need a Field strength of around 45dBµV/m or more for reliable operation. Note that this predictor only appears to show the field strengh for the highest powered mux on the mast. FWIW, Oxford transmits some channels at 10kW, some at 8kW and some at 6kW. The second BBC mux (carrying BBC4 and BBCi [701, 702 and 703]), and the SDN mux (five, some radio stations) are only 6kW. They're also lower down the mast. Mendip are all 10kW, except SDN, but that's due to be upgraded to 10kW imminently. You'd probably be better off with a lovely high gain antenna pointing to Mendip, assuming it's the right ITV region. HTH |
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john wrote:
I just checked the coverage detail for my area on dtg.org.uk, and although I maybe have to reposition my aerial (Transmitter choices are Mendips or Oxford), many channels are still not available (specifically BBC four and BBC radio 6. Is it just a case of waiting until these channels are available on local transmitters? Is there anywhere I can check when this is likely to change? Also various channels that we would like are available on Mendips but not on Oxford and visa-versa. Short of running up on the roof and turning the aerial around every time, is there much that can be done about this? I remember from when I lived there that TV reception is one of the many things about Swindon that is abysmal, which is why the cable network was originally installed some years ago much earlier than in the rest of the UK. Because of the surrounding hills on most sides of town, many parts of town are almost completely shielded from the nearest TV transmitters at Oxford & Mendip. If you are lucky and have a decent aerial and a reasonable line of sight to the transmitter you should be able to pull in all the muxes with a good aerial. I was pulling in all muxes from Oxford on a Unix 100 mounted in my LOFT in Northampton, before I had it moved to the roof and pointed to Sandy Heath, and by my rough guess Northampton is 10 miles or so further from Oxford than Swindon is ... Your other alternative to Oxford and Mendip is Hannington, but I'm not sure what the DTT field strength would be like in Swindon from there.... |
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john wrote:
I just checked the coverage detail for my area on dtg.org.uk, and although I maybe have to reposition my aerial (Transmitter choices are Mendips or Oxford), many channels are still not available (specifically BBC four and BBC radio 6. Is it just a case of waiting until these channels are available on local transmitters? Is there anywhere I can check when this is likely to change? The coverage is very much dependant on your exact location with respect to the local hills. I used to live in Old Town which recieved all channels easily. I currently reside in the Town Centre which requires a booster for adequate reception. What area do you live in? Andy |
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In message , Andy Sinclair
writes john wrote: I just checked the coverage detail for my area on dtg.org.uk, and although I maybe have to reposition my aerial (Transmitter choices are Mendips or Oxford), many channels are still not available (specifically BBC four and BBC radio 6. Is it just a case of waiting until these channels are available on local transmitters? Is there anywhere I can check when this is likely to change? The coverage is very much dependant on your exact location with respect to the local hills. I used to live in Old Town which recieved all channels easily. I currently reside in the Town Centre which requires a booster for adequate reception. What area do you live in? Sorry, yes I should have been more specific I'm in the Swindon area, but acutally I live in Watchfield which is near Shrivenham some 6 or 7 miles outside of Swindon. -- John _ ICQ# - 16141921 / \ ASCII Ribbon Email - (rot13) \ / Campaign * email to reply or from address ignored * X Against Save Farscape! - http://www.watchfarscape.com/ / \ HTML Mail |
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