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Waltham C54 (D3&4 multiplex) |
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#1 |
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Forum Member
Join Date: Dec 2005
Location: Nottingham, UK
Posts: 194
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Waltham C54 (D3&4 multiplex)
Something odd. Took delivery of a new Samsung tv a few weeks ago. In last few days C54 has been near 100% signal strength but only very very low signal quality - sometimes only 4%. All channels on this mux show the same result. All other muxes are near to or at 100% for both strength and quality. I have an aerial with 4 feeds off it - never had any problem before and the only other feed connected to a tv shows C54 at near 100% for both strength and quality.
Not seen any pixellation or drop out on any C54 channels but don't usually watch Freeview as have Virgin TiVo. Could it be that some fault in the cable/connectors between the aerial and my Samsung tv is causing this effect on C54 only? There's obviously nothing wrong with the aerial as the same antenna feeds all 4 outlets, at least one of which is OK on all muxes. |
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#2 |
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Forum Member
Join Date: Feb 2004
Location: London
Posts: 7,513
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Yes .... so check all connections if the coax .. and also that the aerial feed is away from HDMI ... as thus interferes with the signal very frequency selectively,
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#3 |
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Forum Member
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,774
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If you're using a pre-made aerial lead from wall socket to TV, then try replacing it with a home made one using double-screened satellite cable. The ready made leads are of absolutely appallingly low quality, and are essentially unscreened, allowing interference to enter the cable.
It's a VERY common service call to go and replace the aerial fly lead. |
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#4 |
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Forum Member
Join Date: Dec 2001
Location: Hampshire
Posts: 8,076
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Quote:
If you're using a pre-made aerial lead from wall socket to TV, then try replacing it with a home made one using double-screened satellite cable. The ready made leads are of absolutely appallingly low quality, and are essentially unscreened, allowing interference to enter the cable.
It's a VERY common service call to go and replace the aerial fly lead. |
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#5 |
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Forum Member
Join Date: Dec 2005
Location: Nottingham, UK
Posts: 194
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Thanks all. Yes, it's a cheap unscreened coax lead from the wall socket to the tv. And yes, on the previous tv the RF socket was some distance from the HDMI sockets. On the new set all the sockets are co-located.
I'll investigate a screened cable. Never known how to attach plugs to the ends of coax cables so unless I can get a pre-made cable I'll be Googling how to do it.... Anyone know where I could buy a suitably screened pre-made cable, 2m long? |
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#6 |
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Forum Member
Join Date: May 2005
Location: Redditch Worcs
Posts: 17,287
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Quote:
Thanks all. Yes, it's a cheap unscreened coax lead from the wall socket to the tv. And yes, on the previous tv the RF socket was some distance from the HDMI sockets. On the new set all the sockets are co-located.
I'll investigate a screened cable. Never known how to attach plugs to the ends of coax cables so unless I can get a pre-made cable I'll be Googling how to do it.... Anyone know where I could buy a suitably screened pre-made cable, 2m long? Ignore the grease (only needed for external connections) http://www.satcure.co.uk/tech/fplugs.htm#fit Screwfix sell the converters and F connectors. http://www.screwfix.com/p/philex-coa...ck-of-10/17061 http://www.screwfix.com/p/labgear-f-...ck-of-10/39772 http://www.screwfix.com/p/labgear-f-...ck-of-10/73805 For reliable connections you need to solder Belling Lee connectors or buy the type with a small clamp screw (which tend to break). |
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