Use of splitter w/ DECA BB and a receiver

I have whole house HD  recently installed in our home using the SWIM system.  I have a standard receiver in a bedroom, an HD DVR in the living room and an HD Receiver in another bedroom.  The DECA is located in our office on the router separate from all of the receivers.  I want to move the standard receiver to the office.  I could move the cable with significant effort but am wondering---

Can I use a coax splitter in the office for the incoming line and run the DECA BB and the standard receiver off of the same cable?  This would be much easier than drilling through walls and flooring.   Thanks for the assistance,

Mark