GPS Syncing a PTP600

We were looking to get a 150mbps 5.8GHz backhaul (PTP600), we would like to use the new 5.4 Ghz backhal but they only have been approved for the PTP400 y the fcc. SO back to my question can i connect it to the gps so i dont have self interference

Nope. You need to carve out lots of room for those.