All posts by David Sharp
Below are all of David Sharp's postings, with the most recent are at the bottom of the page.
I have tried a few Aerial, including Gp B (which allows for most channels but not all), and Group E (which is ok in fine weather and poor in windy) and finally a really good wideband, which seems to do the trick, except of course for HD Mux (although none of the others gave me it either!!)
Yeah I can get signal strength, but only for tuned channels, and as I cannot get anything on channel 59, I have no idea on signal strength there (unless someone can suggest a way of getting it? Sony KDL-40NX713 set).
As for signal strength I am getting the following
Mux 1: 100% Signal Quality and 90% Signal Strength. (checked on BBC1). This Mux is meant to be a Maximum signal according to this site.
Mux 2: 100% Signal Quality and 66% Signal Strength. (checked on STV). This Mux is meant to be a moderate signal according to this site.
Mux A: 0% Signal Quality and 52% Signal Strength. (checked on ITV3). This Mux is meant to be a low signal according to this site.
Mux B: 69% Signal Quality and 50% Signal Strength. (checked on BBC4). This Mux is meant to be a Maximum signal according to this site.
Mux C: 66% Signal Quality and 50% Signal Strength. This Mux is meant to be a Maximum signal according to this site. This Mux is playing up currently though.
Mux D: 100% Signal Quality and 50% Signal Strength. (checked on Yesterday). This Mux is meant to be a Maximum signal according to this site.
Mux HD: nothing, cant even manually tune!
(55.8005,-4.0147)
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I have now had a play with the direction of the aerial, and move moved it nearer to 65 degree (54 is meant to be optimal), and have managed to improve the signal quality and strength across all Mux's, getting no less than 70% quality on any Mux, but still NOTHING on channel 59 HD Mux. Grrrrrrrrrr
I can only think to try a Masthead amp at about 8-12dB and see if it can boost it enough to pick it up.
I think for £25 it's worth a try.
Otherwise I can only wait and hope when the 'volume' gets pumped up at DSO in June I can suddenly receive HD. (55.8005,-4.0147)
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Hi Scott,
Yeah thats a great site, I got a lot of good advice from them (and purchased my aerials from them)
I am aware, as you said, about the cross shape broadcast pattern, and that may very well be the issue as I am NE relative to the transmitter, the suggested aerial direction being 54 degrees. I have found that i need to move the aerial more towards 60 degrees to ensure a good signal on Mux C (channel 55), as if I move nearer 54 degree I loose Mux C.
I am wondering if I move towards 69-72 degree I would then move into East, and 'might' suddenly get HD Mux.
Might be worth a go tomorrow, although knowing my luck, I'll get HD and loose something else!!! (55.8005,-4.0147)
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That should be I am SW relative to the transmitter, hence my aerial points NE (55.8005,-4.0147)
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HI Scott, any chance you have easy access to your aerial?
Only if you do have east access, can you stick a compass along the central spline of the aerial and let me know the directional orientation, if its more or less bang on East (which looking at a map would be correct) I think we may have the answer (that being the cross shaped broadcast pattern!!)
Cheers
David (55.8005,-4.0147)
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I wonder if we have worked it out as they say, possible due to very low power and directionality, unless you have a good aerial, clean line and are on a N/E/S/W axis you'll struggle to get a signal?
Only need to find some on an oblique direction to confirm they can receive to blow the theory!
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Hi Scott, Oh god please DON'T go onto the roof, was only on the off chance it was easily accessible.
I managed to get access to my brother's aerial (he lives in Yorkhill in WE)
It is bang on pointing East, and I am thinking that is the answer.
Cheers
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Well Blow my socks off, randomly tried to tune channel 59 during an advert break....and what do you know?
All 4 HD channels popped up!!!
Talk about random!
BBC HD signal quality 47, signal stength 26
BBC1 HD signal quality 47, signal stength 26
STV HD signal quality 47, signal stength 26
C4 HD signal quality 47, signal stength 26
These figures would make sense based on the low 10kW broadcast power, i'm hoping it not just a fluke due to the calm and clear weather.
A happy David
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Robbo, same here, I was getting all the HD channels, and then suddenly on Friday last week, nothing.
I still have them tuned, but the signal is 0.
Strange
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Page 1
Saturday 15 January 2011 12:42PM
I wonder if anyone can give any insight to receiving the HD Mux from Central Scotland (Blackhill)
I am of the belief that the HD Mux is being transmitted a very low power 10kW pre DSO, and that the actual antenna is mounted relatively low on the actual transmitter.
I am located 7 miles from the transmitter and there are not any significant obstacles between myself and the transmitter.
I have a brand new, high quality wide band aerial (DY14WB), all high quality cabling, and screened outlets and I am getting superb picture, both in terms of signal quality and signal strength. I can receive 100% of the freeview channels (106 from memory) and I can view all of them BUT I cannot receive any of the HD Mux (channel 59 I believe?)
I cannot get my aerial any higher than it already is (planning restrictions).
The question I have is, do you think fitting a good quality Masthead Amp (possibly variable up to 16dB) would enhance my chances of getting the HD Mux?....or is it more likely that its just the low power transmission and physical site of the transmitter that is the problem, and waiting until DSO when the signal gets increased is the realistic answer?
Cheers for any input. (55.8005,-4.0147)