Add GP prefix on NMEA strings in u-blox GPS

Some programs require the text GP in front of the NMEA string (coming out of u-blox GPS module) to successfully read the GPS data.

Follow the steps below, to add GP string.

1. Open u-center.
2. Connect to GPS module (default port is COM3, baudrate 9600).
   
3. Go to View > Configuration View.
4. Click NMEA (NMEA Protocol) on the left side list.
5. Set Numbering used for SVs not supported by NMEA to 0 – Strict (not output), Main Talker ID to 1 – GP (GPS) and GSV Talker ID to 1 – Use main Talker ID.
   
6. Click the Send button in the lower-left corner.
   
7. Switch to CFG (configuration) tab in left side list and select Save current configuration. At Devices: select all 4 list entries. (To select all entries, tap and hold pen/mouse on first entry and move down to last entry. Release pen/mouse). Then click the Send button in the lower-left corner.
   
8.  Click Receiver > Action > Save Config.
   
9. Done!