The RCA TVPRAMP1R has connections for a UHF antenna and a VHF antenna and also a combined single antenna. Here is the manual for the amplifier ,
http://www.manualowl.com/m/Manual/194156.
Also some but not all splitters have a DC power pass through that goes through one or more ports. The output port and the input ports of the splitter. ( Reason: to get the power through the splitter to the preamp)
Connect the power supply and power injector on the output side of the splitter and the preamp part on the input side of the splitter.
If you do not know one way or the other about the splitter then put All parts of the RCA TVPRAMAMP1R on the input side of the splitter. Also all parts of the preamp are required.
When using the UVSJ with the RCA TVPRAMAMP1R set the Separate / Common switch of the preamp to Common. When not using the the UVSJ , set the switch to Separate and connect the separate UHF and VHF to the preamp.