Serial Port Splitter - Share dataflow of one serial port among several applications or join dataflow of several serial port devices to one application.
4 Way GPS Splitter - TimeMachines Inc.
GPS Splitter for Business - Split GPS data
GPS Source MS24 - GPS Splitter with Built In Antenna Switch | TerrisGPS
Split data from trackers to two GPS monitoring applications | TCP Splitter
GPS Antennas and Accessories
GPS/GNSS Antenna Signal Splitter - ArduSimple
Measure Area GPS - GPS Area - Area Calculation - Medir Area
GPS Splitter: how to share GPS serial data between apps