cheap splitters ftl.

a 2 way splitter has a 3.5 db drop on both legs

a 3 way splitter is basically a 2 way, with another 2 way on one of the legs, so you have a 3.5 drop on one, and a total of 7 db drop each on the 2nd and 3rd leg.

you can try a low loss splitter..... or you can try calling your cable company and ask them.