Originally Posted by
The Banjo
Have a look at FCOM
PRO-NOR-SUP-GPSINT for some ideas. One of the first things is to put the Clock into INT mode so it is not interferred with by bogus GPS timing. Happy reading!
I was about to ask if the clocks were synced OK. We've noticed this on other types that during GPS spoofing/jamming the clocks can be out by as much as 5 minutes if the GPS do not recover.