You are trying to split cable into my son's room We have digital in the room you are splitting from I don't want digital is his bedroom Is it possible to do this and just get the basic channels?

If his TV is cable ready and your cable company offers basic cable with out a cable box then just use a cable rated splitter and run the cable to his TV without a box he will only get basic and probably advanced basic. You need a cable box or a TV with a built in decoder to get digital signals.