Make sure to place GPS module as far as possible from:
Main body of the airframe
RF emitting devices such as transmitters
High-current cables (ESC / motors power supply)
GPS Receiver
Connect GPS antenna to GPS antenna port. This is only for the versions which have integrated GNSS module.
RC Receiver
After mounting the board you need to connect cables from RC Receiver to SmartAP PPM / SBUS Input.
You can also connect FrSky S.Port from FrSky receiver and get real-time telemetry on your FrSky transmitter (e.g. Taranis) screen. Simply