You can use a 2-way splitter with only 3-4dB of signal loss. Anything more than that and you want a multicoupler to keep the signal level from dropping too much.
I also rise in support of the Stridsberg units. Lovely on all four receivers: BC780XLT, SDS200, Icom R30, SDRPlay RSPdx from one discone: Comet DS-150S.