TV cabling question: wire for underground cable (RG-6, 11 or 60)?

[ieoeja]

Telephone, cable and electricity come off the same pole

The pole in the alley behind my house not only houses a transformer, it also supports the hub for telephone service for a ?? block radius. Plus the cable company splits off their line from there.

And all three utilities insist on running their wires through the tree in my backyard to the same corner. Between the tree fraying wires and the wires wrapping around one another ... I have become quite the expert at separating these wires (preferably while intoxicated and standing in a well-grounded pool of water and using a pole made out of copper piping and wearing one of these :tinfoilhat:).

When I replaced the garage I had an electrician run rigid steel conduit underground, two from the house to the garage and two from a point outside the garage near that utility pole. So I have two unused 1.25" (too small for electric; sigh) conduits sticking up out of the ground by the utility pole.

A couple weeks ago my cable started acting up again. So this would seem like a good time to make use of that conduit. But I don't know what wire to run underground?

Found the following on Wikipedia:

RG-6 used for cable TV (and this is what the cable company has run from the pole to the house).

RG-11 used for longdrops and "underground conduit". Same impedance (75 ohms). Much larger in diameter. Appears to be unshielded! Will there be a connection issue with the RG-6?

RG-60 used for high-def and high-speed internet. I have neither at the moment, but should plan for the future. Even slightly larger overall diameter than RG-11. And impedance is less (50 ohms) which makes me wonder if standard TV will work.


Suggestions from the technologist crowd? I've found this site better than the pros I know when it comes to difficult technology questions (they just want do whatever is standard which, in this case, means securing it to a tree branch away from the other wires using an insulater to keep it from fraying).