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All posts by Tony

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

T
Single frequency interference
Thursday 3 February 2011 4:39PM

I'm new to this forum and there's a lot of useful discussion here.

A problem that's cropped up here a lot, I've been trying to diagnose for my daughter for some time. Namely picture and sound break-up, at peak times, on all 4 TVs. The analogue picture is fine.

A new aerial (pointing to the Waltham Tx, her post code is LE9) and 4-way booster(Wolsey Amp WFAV 425-in the loft & Power Supply 100/1 in bedroom) servicing 4 TVs with Freeview Boxes was fitted about 5 years ago and has worked fine until about September last year and gradually getting worse.

After various checks, I suspect either the aerial or the amplifier/splitter. So this evening I'm going to bypass the amp with an F-connector adaptor to the main TV in the lounge and see what happens.

I've asked Dawn if her neighbours have had similar problems and 2 to the left have said not.

I've heard that the Wolsey set-up is not the preferred one for some and I understand why. If the amp does prove faulty then I will wire a 13Amp socket in the loft and get her a new amp. Could anyone recommend a good one?

Any comments or suggestions would greatfully received.





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T
Single frequency interference
Friday 4 February 2011 10:08AM
Leicester

I bypassed the amp last night and picture no different. So amp OK. Also I did a continuity check on cable up to the aerial, centre core back to the shielding. On the 200M (presumably milliamps) range, I got a reading of 12. I would expect zero. Suggests damp in aerial connector box?

I'm going for a loft aerial. Not ideal I know but it's lack of pennies.

What type should I go for? Ideas would be welome

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T
Single frequency interference
Friday 4 February 2011 4:41PM
Leicester

Brian: I know they are of limited success but have decided against one due to lack of headroom and too so much clutter up there.
The existing aerial's on the roof. I shall have to go up to check the connections and maybe replace the cable to the amp. What is the latest standard?

jb38: Thanks for your suggestions. I'm satisfied the amp is working as I bypassed it and there was no change. All TVs have picture and sound breakup on same Freeview channels. Dawn lives on a village estate and there's no new buildings or factories nearby. Mains interference. That's a possibility. She could try a filter.

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