From here, you can see which NMEA messages are enabled and being output by the receiver. Next, select the "Messages View" from the "View" tab.
#Nmea usb gps receiver software
You may need to re-select the port to let the eval software match its baudrate to the receiver. To do this, select "PRT" from the "Configure" window and set the "Baudrate" field to 115200, then select the "Send" button at the bottom of the page. I found 115200 worked fine with my setup as long as I don't have too many extra messages enabled, 230400 should be fine for almost any settings. I recommend first increasing the baud rate to something faster than the 9600 default. For details on what all these settings mean, see the Neo-M8 Receiver Description.
All of the receiver configuration options for this receiver will appear in the menu and you can read what the currently is set to with the "Poll" button or change the configuration by changing the settings and hitting "Send". To configure the receiver, select the "Configuration View" from the View menu.
If everything is working properly, you should now be able to click on the various display icons and see sky positions, signal strengths, status, etc for all the satellites the receiver is tracking. You should see the connection status box at the bottom of the window go to green and list the baud rate that the receiver is configured for, probably 9600 baud if you haven't changed it. They will probably be the only two options. It makes it easy to explore all the configuration options for your receivers and make sure everything is working properly before we move to RTKLIB.Īfter you have downloaded the program and started it up, use the "Port" option in the "Receiver" tab to select one of the USB ports that the receivers are connected to. Ublox provides a nice evaluation software package for Windows called u-center that makes this very easy. At this point, the GPS receivers are connected to your PC through the USB port and are ready to configure and verify that all is working OK.