All posts by Dave Lindsay
Below are all of Dave Lindsay's postings, with the most recent are at the bottom of the page.
lee: Having selected "South East", go to the following services and bring up the signal strength screen. Read off the UHF channel number for each (or frequency in MHz if the channel number isn't shown):
1 BBC One
3 ITV
101 BBC One HD (if applicable)
10 ITV3
11 Pick TV
15 Film4
This will tell us which transmitter each is being received from.
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Michael Murphy: Interference from Dover maybe? It uses C48 @ 40kW and C50 @ 80kW (horizontal).
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Susan Elaine: Signals are better at roof level which is why a roof top aerial is best.
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john wright: What happens when you go to the manual tune screen and select UHF channel 24, but do NOT press the button to scan, instead simply wait five or ten seconds - does it give any indication as to strength and quality on that channel?
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Penny: Assuming that the Rowridge transmitter is being used then switch the aerial from horizontal to vertical.
The Commercial channels which carry ITV4, Film4 and others aren't as strong horizontally, but all channels also broadcast vertically at the same power.
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Les: I would suggest that the answer is that the rain water and the roof being in the way of the aerial are the causes!
You may find that repositioning the aerial might help.
One of my receivers had an issue with the picture occasionally freezing and I discovered that moving the aerial so that its end wasn't so close to the inside of the roof cleared up the problem.
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Les: At switchover signals changed UHF channel and the mode went from 2k to 8k.
I too had never seen the picture freeze before switchover - it was rock solid. Then following switchover I had to adjust my aerial as, apparently, the loft-mounted aerial being in such close proximity to the inside of the roof was the factor.
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Mo582: No.
There are a number of reasons I suggest this:
- The aerials on the tops of the houses are larger types, which suggests that you aren't in the best reception area.
- Even at roof level you don't have line-of-sight to the Crystal Palace transmitter because the ground blocks the view between 1.5 and 2 miles away. On that higher ground is the Pipps Hill Industrial Estate where there are large buildings.
- The bearing to the transmitter is roughly west and the road runs west to east, so pointing an aerial in that direction from within one house means that it is pointed through other houses.
If this is a for an additional TV and you already have a roof-top aerial then I would look at using that aerial to feed the other room.
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As reported on Look North, the "Leeds" multiplex has another transmitter which is at the top of the UK's tallest free-standing structure:
Articles
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Wednesday 26 June 2013 10:35PM
lee: The "region" you select affects the transmitter you are receiving from.
"London" will be the Crystal Palace transmitter.
"East Anglia" will be Sudbury/Rouncefall.
If you select either of the above your aerial is pointing the wrong way for them.
"South East" is, presumably, the one you want.
Having done that, see which channels you have. If your aerial is pointing at the Faversham transmitter then it will be vertical (elements up/down) and you will only receive PSB channels. In which case you may wish to have your aerial changed to face Bluebell Hill (to give you all channels).