750 feet (228 m)
You should be able to go about 100' with RG-56 with little or no problems.
The best size is RG 6 coax. However for short runs RG 59 will work.
RG-59/U and RG-60/U
In northAmerica all coaxial connections made to a television are made with 75 Ohm coax. Typical sizes will be RG-59, RG-6 or maybe RG-11 (less common).
Cable modems use RG-6 coax cables.
I am not certain on T-90 my tv installer said to use rg 59 i am not certain why.
Look for cables with the most shielding. The shielding in coaxial cable can be from a little to almost 100 percent. The better cables will have the most shielding.
Rg 6, rg 11, rg 59
It's the coax cable used for Thick Ethernet.
RG-59 is RF cable, it is 75 ohms and it will carry video too.
Thicknet coax cables are 10base5 cables, RG-8 or RG-6 cables.
205mph