What you probably have is a single coax connector near where the TV mounts in the bedroom. The other end of that coax is in the closet. In the closet, there are probably 2 additional coax connectors; one for bedroom satellite and the other for antenna/cable. The antenna/cable connection will probably also have a signal booster push button/light. ON/Lit for antenna, OFF/unlit for cable.
The jumper is likely installed between the antenna/cable connector and the connector that goes to the TV. When you hook up to satellite, you move the jumper from the antenna/cable connector to the satellite connector.
The satellite receiver can go in the closet if you like. If so, it's helpful to have an RF option on the remote and receiver so line of sight isn't necessary.