The Applanix Position and Orientation System (POS) uses a NovAtel GPS Antenna that uses the L1 and L2 frequency. You can split the GPS antenna signal if you use a splitter that has a DC blocker on one of the receivers. The ALDCBS1X4 GPS Amplified Splitter has a DC blocker and should work to for the Applanix (POS) system.
The Time Sync Generator uses a active antenna with 5 VDC power provided via antenna cable. Gain: 26 db +/- 2 db.