Question about ZED-F9P GPS implementation

The u-blox datasheets are quite clear on what the operational limits are for each module. E.g. from the MAX-M8 datasheet:

Operational limits:

Dynamics: ≤ 4 g

Altitude: 50,000 m

Velocity: 500 m/s

I can personally vouch for the MAX-M8Q working very well on weather balloon flights at altitudes well over 30km:

http://arxiv.org/abs/1904.04321 (see section 2.3.4)

The trick is to set the dynamic model to (e.g.) “Airborne <1g”

https://github.com/sparkfun/SparkFun_u- … cModel.ino

Best wishes,

Paul