1. If you didn’t do so, please download the Windows USB driver of P-7 Pro from here. Install the driver.
2. Download GnssToolKit3 software from here , extract it and double click the GnssToolkit.exe.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/P-7Pro-SBAS-1.webp)
3. Select the baud rate 57600.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/p-7pro-SBAS-2.webp)
4. Plug in the P-7 Pro to the computer’s USB port.
5. Open the “Device Manager” from the Windows. Select Ports (COM & LPT). Note down one of the com ports number which showing “Silicon Labs Dual CP2105 USB to UART Bridge: Enhanced COM Port”. I will use “COM10” in this instruction.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/P-7Pro-SBAS-3.webp)
6. Connect the COM Port (COM10 here) from the GnssToolKit3.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/p-7pro-SBAS-4.webp)
7. Select View –> Configuration from the menu.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/p-7pro-SBAS-5.webp)
8. Click the “Custom message”, check the Checksum, paste “PQSETCNST,175” in the “type message” field and press the “Send” button.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/p-7pro-SBAS-6.webp)
9. Paste “PQSAVEPAR” in the “type message” field and replace the previous value. Press the “Send” button. Unplug and plug back the P-7 Pro (power cycle). That’s all needed to enable the SABS for P-7 Pro.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/p-7pro-SBAS-7.webp)
10. To verify if the P-7 Pro can really receive SBAS satellites. Select the “Data View”. Expose the P-7 Pro under the open sky for a while. You will see 1 or more SBAS satellites in Data View.
![](https://community.gpswebshop.com/wp-content/uploads/2023/06/p-7pro-SBAS-8-1024x704.webp)