Cable reception not clear on some channels

wa8yxm wrote:
as losses go up. picture quality goes down

You are still thinking "analog" ! Its a digital world.

Sure the "front end" of the receiver is analog, but once the detection circuit have "data" the digital electronics decode it, make corrections, and turn on/off the appropriate pixels. Bad data = pixelation.

Same thing with my 2014 Jayco. So I ran a wire through the window and the all the TV channels worked fine. So my wire from the inlet to the TV has a problem. Probably your problem.

Has the system always acted in this manner?
It is even possible if it has, that the cables are not connected as indicated.

theoldwizard1 wrote:
...

There are no "over-the-air" (OTA) analog (NTSC) signals being broadcast since 2009.

untrue. the FCC still permits low power analog stations. we run in to them every now and then on the road and even have a few here at home.

theoldwizard1 wrote:
...Very few if any cable companies send out an analog signal...Most (all?) cable signals are digital. They may or may not be scrambled.

that's not been our experience. virtually all of the campgrounds and parks we've been to that offer cable have "analog" cable. we know this because our 3-yr old TV when scanning for cable channels scans for both 'cable tv' and 'digital cable tv' channels. very few of the parks we've been to offer "digital" cable.

to the OP...be sure that your OTA TV amplifier is OFF when viewing cable channels and ON when view OTA channels. and be sure that you always scan for channels when setting up at a new park.

rbp111 wrote:
I have a LG tv in the living area and an Insigna in the bedroom area.

Are you going to the TV setup menu when you connect to each different cable system and doing a new CHANNEL SCAN ????

You must do this each time you move.

It sounds to me like you are trying to "watch" some extraneous signals from the cable that aren't really supposed to be watchable.

A re-scan should skip over that kind of stuff.

Having said that, there are a couple of KOA campgrounds that I visit which DO have a few really bad channels.....and the owners just say that the system is really old and can't be fixed (translation: they won't spend the money). Thankfully they have 40 or so channels that work good.

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

I have a LG tv in the living area and an Insigna in the bedroom area. I am now at home, so I don't have a cable hookup. When I go out again, if the park has cable TV, then I am going to hook up the cable by going outside to the source and feed it through the window and hooking it up to the TV directly.
Yes I use RG 6 cables only.

First, my comments do not apply to any satellite TV system.

Second, modern digital TV can NOT get "fuzzy" pictures UNLESS there is something between the source of the signal and the TV that is analog. Pixelation yes, fuzzy, no.

There are no "over-the-air" (OTA) analog (NTSC) signals being broadcast since 2009. Very few if any cable companies send out an analog signal. All OTA broadcasts are digital. Most (all?) cable signals are digital. They may or may not be scrambled.

You say your source is cable TV. From your house or from where you are staying ? What type of TV do you have ?

If you have an old CRT non-digital television then you likely have a digital-to-analog conversion box "in the loop". Check the connections between the box and the TV set. And do yourself a favor and buy a new digital TV.

Are you using RG6 (heavier) coax cable or the lighter weight stuff. I found that made a difference for me.

B.O.

Possibly you may have interference inside the trailer affecting the signal.

Eliminating the causes would be helpful.

1. The suggestions to run separate cable is a good one.
2. Trying different sources.
3. Amplifier off/on
4. Tighten all connections

Etc....