High Quality CATV/CCTV Coaxial Cable RG11
Another problem with the RG11 is the lack of flexibility, largely due to the thickness of the cable. This makes the use of RG11 cables in common home connections very difficult, if not impossible. The RG11 cable is not really designed to bend around corners or take sharp turns. The RG6 is much better for this and that is why it is often preferred in home installations. The RG11 cable is often used in backbone installations where you would usually need to connect two points that are separated by a somewhat great distance.
If you already have the RG11 cable but need the RG6, it is safe to use the RG11 cable in its place and expect no loss of signal quality. The opposite is not always true as, depending on the signal being carried, the RG6 may or may not suffice.