- That which serves to divide or separate something. For example, a beam splitter or a phase splitter.
- A device which divides the signals received, or those to be sent, of an antenna, so as to provide multiple paths. Used, for instance, to enable multiple TVs to access the signal of a single satellite. Also called antenna splitter.
- A filter which separates the voice and data signals of a telephone line via which DSL service is accessed. The voice frequencies are in the lower frequency range, and the data is in the higher interval. Not all DSL services require a splitter. Also called POTS splitter, or DSL splitter.