Home cabling, coaxial and cat-5

I’m looking to run some cables and I’m wondering about having coax and cat in parrallel for long runs, interference, line loss. Does anyone have any experience, or rules of thumb.

I don’t have the rules-of-thumb handy, but I ran Cat-5 a few years ago from one side of my house to the other by drilling outside, stapling it up to the eaves, across the attic, then down the other wall and into the bedroom where it came back in. The run must have been > 75 feet and I get great signal quality still with a gigabit connection.

Coax is interesting, might I ask what the purpose will be? I assume you’re extending cable or satellite to add an additional receiver. I’ve seen TV installs with just massively long runs of cable that appeared to work fine, but I’m sure an expert will have some good figures shortly.

The coax is for cable tv, I plan to follow the existing runs with cat so they’d be in close proximity and parallel, to my limited EE background that sounds like it could lead to issues.

Unlikely. Coax is shielded, and CAT has that twisted pair thing that provides interference resistance. You should be fine.

Sounds good. Interference shouldn’t be a problem. You can run Cat5 about 300 ft without repeating. If you are running outside, standard Cat5 isn’t designed specifically for it. Use caution not to bend or kink the wire (especially if your pulling the line).