OCP M.2 ZED-F9P GNSS

What is it?

An M.2 2242 GPS board, compliant with OCP M.2 Sync specification.

This board uses ZED-F9P-05B as the GPS receiver. Hardware design is fully open source: GitHub Repository

With this, you can turn the TimeHATV6 into PTP Grandmaster AND RTK Base station.

What's in the box

1. ZED-F9P M.2 board
2. U.FL to SMA adapter cable
3. M.2 screw

Why did you make it?

This board is meant to work in any PCIe card or design that supports OCP M.2 GPS receivers. Currently designs that support this:

1. TimeHATV6: TimeHATV6 i226 NIC with PPS In/Out for RPi5
2. Time Card: GitHub, Makerfabs

Specifically, the F9P is used for positioning applications, and RTK for high precision positioning. Learn more about RTK:

• u-blox RTK Technology
• Wikipedia: Real-time kinematic positioning
• SparkFun: What is GPS RTK?

How to use it

For use with the TimeHATV6, we recommend this software:
rtkbase on GitHub

Installation with TimeHATV6:

You will need to modify the install.sh to add ttyAMA0. Search for ttyUSB0 in the file, then add ttyAMA0 to the list. Then you can run the install script:

sudo ./install.sh --detect-gnss --configure-gnss

Note: rtkbase will also run gpsd so you can use cgps. It will configure the receiver for 115200 baud rate and save that change, just a note if you try to uninstall rtkbase and go back to manual gpsd.