uBlox ZED-F9P series of GPS is their new and first multiband GPS series. Until now we have all used mostly their M8 series which was already very good GPS modules. I have watched Tridge’s blog on his own very technically detailed testing which triggered me to do this comparison between F9 and M8 series of uBlox GPSs.

I have so far used M8 series GPSs on all of my UAV builds so far with great satisfaction.

The fact F9 series are multiband GPSs, there should be a good improvement on performance (precision, speed of acquisition)

To test it out, I connected an Ardusimple F9 GPS eval board to a Pixhawk1 board on GPS port 1. I simultaneously connected a M8 GPS on GPS port 2.

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