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All posts by Sticks

Below are all of Sticks's postings, with the most recent are at the bottom of the page.

S
Stockland Hill (Devon, England) transmitter
Sunday 1 July 2012 11:51AM
Honiton

Hi. We bought a new Panasonic TV this week which has Freeview HD. We are getting fluctuating signal quality on HD transmissions of 30%-100% - all SD channel quality is 100%. Signal strength is 80%. We sometimes get a "no signal" message - other times we get pixellation for a few seconds - most of the time it is fine. Have done all the usual checks. Thinking of getting a freeview HD PVR but not confident it will work. Our aerial is tuned to Stockland but there is a nearby relay mast - can you advise please.

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S
Stockland Hill (Devon, England) transmitter
Sunday 1 July 2012 4:11PM
Honiton

Thanks Dave - you were spot on - the set was tuned to the Honiton relay on the HD channels. I re-tuned to Stockland (Ch29) and unplugged the aerial as you suggested but the signal quality and strength is now worse with quality going into the red quite often. Would re-tuning to honiton with a properly oriented aerial (vertical) help?

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S
Stockland Hill (Devon, England) transmitter
Sunday 1 July 2012 5:38PM
Honiton

Thanks again Dave for your help. The situation is that, when tuned to Stockland, HD channels get 75% strength and quality varies from red to 100% very frequently. On Honiton (with the currently mounted horizontal aerial)they get 90% strength and quality goes from 25%-100% but drops less frequently.I'm not fussed about the COMs channels. If I introduce an RF attenuator should I tune to Stockland or Honiton?

Presumanly if we go Honiton and I re-orientate the aerial vertically (as spec'd for Honiton)then I will strengthen the signal even more and make it worse.

In auto-tune, the TV tunes in to all the channels from both transmitters and then sorts them "geographically" thus using Honiton first. So if I revert to this method of tuning, we should get the channels on the 3 PSBs from Honiton and then those on the COMs from Stockland - or doesn't it work like that??

What strength attenuator should I get?


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S
Stockland Hill (Devon, England) transmitter
Sunday 1 July 2012 7:25PM
Honiton

Thanks again Dave - I have ordered a variable attenuator and will try it on Stockland. If that doesn't improve things then I will try Honiton with cutrrent aerial set up. It is red tip Group A but, from what you say, worth a try.

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S
Stockland Hill (Devon, England) transmitter
Tuesday 3 July 2012 2:43PM
Honiton

Hi Dave - I have tried a variable attentuator but as soon as it starts to cut in it makes the signal worse - so I guess a signal overload is not the issue. Ant other ideas??

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S
Stockland Hill (Devon, England) transmitter
Wednesday 4 July 2012 6:20PM
Honiton

Thanks for all that Dave - I have booked a diagnostic visit with an aerial fitter as even the local relay isn't giving a wholly reliable signal.Will let you know what he finds. Can't do ladders myself.........

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S
Stockland Hill (Devon, England) transmitter
Thursday 5 July 2012 2:59PM
Honiton

Hi Dave - the aerial fitter moved the aerial from one side of the chimney to the other, got a 10db improvement in signal from Stockland, and we are getting good quality uninterrupted HD now. So it was topography -let's hope the trees don't grow too quickly. It wasn't expensive, a genuine guy. Thanks again for your help - back to Wimbledon now.........

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