With event mark, Precis-BX316/BX306 can support camera shutter synchronization, which is useful for aerial mapping and drone-related applications.
Precis-BX316/BX306 GNSS RTK Boards support PPS output, which is useful in shutter synchronization.
Precis-BX305 GNSS RTK Board (GPS L1L2/GLONASS G1/BEIDOU B1B3) , it supports PPS output, which is useful in shuttle synchronization.
Check it out. How Tersus GNSS RTK works with ArduCopter. Original from Mr. Michael Oborne and his Ardupilot Dev Team in Australia.
Test Environment: City Streets with Tree Cover & Tall Buildings
Inexpensive but reliable L1 RTK boards, how is the performance?