TV Interference Ch2 & 4 cable TV

[scuba_dave]

I've been living here 3 years & this comes & goes

Finally started reading thru some of the threads here
Then read some of the links & remembered a filter that was installed at my wife's condo. Saw the filter the other day while cleaning out the basement

Went & installed & it & BINGO!! The problem was gone!!
As was my Internet access :(
Moved the filter off the main connection (includes Internet) & to the secondary. Problem gone, Internet access back

Thank you!!!

As an explanation - I had multiple lines of interference on the screen on Ch2 & Ch4
Almost fuzzy - and there was a noise - very low but audible when on either channel

[scuba_dave]

Arrrrrrrrrrrrrrrrrrrrrrrrr......

It just came back :(

Just channel 2 & 4

[Kode VioL8R]

I've had a couple service calls like this and traced it back to electric blankets/heating pads, things of that nature. Sounds weird I know, but just a suggestion.

[Ohm1]

Not sure what it could be. Maybe your TV cable (RG-5 or 6 non-quad) has interferance from not being insulated from circuit wiring. How many TV jack do you have in your home?

[scuba_dave]

It's gone again

No heating pads or electric blankets
Doesn't correspond to anything I can think of that is on when this happens
The cable runs do need to be re-run, underground conduit has been run
There are too many splitters too

One outside, one inside - splits to 3 way
1 for internet - 3.5db
1 for master bedroom - 7 db
1 for main room - 7db
....main room feed splits at a double splitter -3.5db
............then behind TV goes to a 3-way splitter, labeled 5-90 mHz

The outside splitter is no longer grounded since the SF feed was buried, meter replaced & new grounding rods

The 1st 2 splitters in the basement are grounded - only to a water pipe

The splitter behind the TV is not grounded

It went away again
I'll have to start tracking this when it happens
See if there is a pattern
OFF:
Washing machine, dryer, dehumidifier, all Flourescent lights, stove, microwave, No fans running....strange

I do have power compact lights all over
I also have a (3) 250w MH light for fish tank. But it's on for 8 hours at a time.
One light go off at 5pm, 2nd at 9pm. Another stays on until 11pm - midnite

[suemarkp]

You may want to check with a neighbor. Perhaps its not just your house that has the problem. I see similar things on my ch 4 (and I have a local chan 4 broadcast that could interfere). But its funky interference that comes and goes ( a random black line, a pop or click) and doesn't appear to be interference from RF leakage into the cable at the same frequency. I've just assumed its the source signal, as I can't correlate it with anything I do.

[Ohm1]

If you have DSL then this may be the problem!?

[scuba_dave]

We have Comcast cable - they just bought out Adelphia here
It's so infrequent as to not really be a pain
But it seems like every time there is a good show on 4 it crops up

I'll be watching the clock now to see if it crops up at a specific time
But we don't watch Ch4 all that much

I'll check with the neighbors too
Thanks

[jdcableguy]

If your neighbors are having the same problem - then there is a distribution problem. If this is the case it could be many things -ie broken sheath on hardline cable, breakdown of Ac or Dc circuitry in the amplifier feeding you just to name a few.
It could also be coming from a cracked insulator on the Power Company equiptment and getting into the cable.

If your neighbors cable service is ok -then you may have a bad connector on one of the fittings on the service to your or a break in the coaxe at your house.

The easiest way is call Comcast - here in PA Comcast doesn't charge for service call and they will repair or isolate the problem.