Cable reception not clear on some channels
I have a 3 year old fifth-wheel trailer. I have noticed that the reception on the television, that is when I have cable, varies quite a bit. The channels, say 2-10, are ok, a little bit fuzzy, but I c...
Forum Discussion
ON a trailer that new I would not think anyting I am about to type would be the problem but there are several things that can affect reception
Cable quality. Cables that are good at VHF-LOW BAND (2,3,4,5,6) (Actually that is Low a and Low b if I recall correctly) all under 150 MHZ. may not be as good at 7-13 (VHF HIGH) or UHF (13 and up)
Of course today channel 2 may well be using carrier 7 or even 20
(In Detroit channel 2 actually is broadcasting on 7 and 7 on 41. where I am now 7 really is 7 on broadcast) on cable if it is analog .7 is still 7 and so on.
as losses go up. picture quality goes down
As cable gets older. espically if exposed to sun. losses increase but 2 years and protected as those are. (make the 10-20 years and this may apply)
The other thing I've heard of is failure to use a proper Splitter but again I doubt any one would be that stupid any more (Back in the days of 300 Ohm Flat lead it was common but most folks use a splitter with coax).
One thing that may affect.. When the cable wes assembled I've seen them cut the center wire a tad short. Now I know how to tell when that happend but it's a touch thing.. Hard to describe but the "Feel" is different
Cable quality. Cables that are good at VHF-LOW BAND (2,3,4,5,6) (Actually that is Low a and Low b if I recall correctly) all under 150 MHZ. may not be as good at 7-13 (VHF HIGH) or UHF (13 and up)
Of course today channel 2 may well be using carrier 7 or even 20
(In Detroit channel 2 actually is broadcasting on 7 and 7 on 41. where I am now 7 really is 7 on broadcast) on cable if it is analog .7 is still 7 and so on.
as losses go up. picture quality goes down
As cable gets older. espically if exposed to sun. losses increase but 2 years and protected as those are. (make the 10-20 years and this may apply)
The other thing I've heard of is failure to use a proper Splitter but again I doubt any one would be that stupid any more (Back in the days of 300 Ohm Flat lead it was common but most folks use a splitter with coax).
One thing that may affect.. When the cable wes assembled I've seen them cut the center wire a tad short. Now I know how to tell when that happend but it's a touch thing.. Hard to describe but the "Feel" is different
